Abstract :
Ten wheat genotypes were crossed in diallel manner excluding reciprocals. The crosses along with parents were analysed for combining ability and significant variation was found amongst genotypes for various yield and yield contributing traits. ANOVA revealed that mean square for general combining ability was significant for all the traits studied except for spike length. Mean square for SCA was also non significant for spike length while for all other characters it was significant. Out of total 45 crosses 5, 8, 4, 7, 8, 3, 3, 11, 11, 13, 8 and 11 crosses showed significant SCA effects in desirable direction for days to 75% heading, days to maturity, flag leaf area, number of productive tillers per plant, plant height, spike length, number of spikelets/spike, number of grains/ spike, 1000 grain weight, biological yield/plant, grain yield/plant and harvest index, respectively. Two cross combinations viz., HD 2967 × NIAW 1594 and KFA/2*KACHU × WH 1187 were identified as good crosses due to them having higher per se performance and significant SCA effects for three yield and yield contributing traits so these crosses presents an opportunity for commercial exploitation either in form of hybrid varieties or as base material for selection of potential homozygous lines from transgressive segregants for improvement of yield levels of bread wheat.
Abstract :
Highly significant effects of environment (E), G×E interaction and genotypes (G) were observed by AMMI analysis during 2018-19 and 2019-20 study years for wheat genotypes evaluated at major locations of Peninsular zone of the country. WAASB measure observed suitability of HI 1605, HI 8805 & HI 8802 genotypes. Superiority index while weighting 0.65 and 0.35 for yield & stability found MACS 6695, HI 1605 & NIAW 3170 as of stable performance with high yield. PRVG and MHPRVG measures observed suitability of NIAW 3170, MACS 6695 & MACS 6696 wheat genotypes. Moreover, the average yield of genotypes ranked NIAW 3170, MACS 6695 & MACS 6696 as of order of choice. SI expressed only negative values of correlations most of other stability measures except of MHPRVG, PRVG, yield. WAASB measure exhibited direct relationships with other measures analogous of negative values with MASV, SI, MHPRVG, PRVG, yield. Analytic measures MHPRVG & PRVG had only positive values with SI, and yield remaining stability measures maintained negative values. MP1358, NIDW1149 & NIAW3170 would be suitable genotypes as per WAASB measure during second year of study. Superiority index found MP1358, NIAW3170 & MACS4087 as of stable performance with high yield. PRVG and MHPRVG measures observed suitability of MP1358, HI1605 & MACS4087 wheat genotypes. More over the average yield of genotypes ranked MP1358, MACS4087 & HI1605 as of order of choice. SI expressed mostly negative values other measures except of weak direct relation with MASV1, MASV along with strong with yield, MHPRVG & PRVG measures. WAASB measure exhibited direct relationships with other measures and indirect with only MASV1& SI.
Highlights
- Stability measure WAASB based on all significant interaction principal components observed suitability of wheat genotypes associated with lower values of measure.
- Superiority index provided variable weighting mechanism between stability and yield of genotypes under multi environment trials. Assigning 0.65 and 0.35 weights to yield & stability respectively selected wheat genotypes of stable performance with high yield.
- Recent analytic measures of stability PRVG and MHPRVG measures expressed strong association with superiority index.
Abstract :
Germins and germin like proteins (GLPs) have been reported as plant glycoproteins belonging to the superfamily. They have been documented to possess enzymatic activities leading to the generation of H2O2, a reactive oxygen species (ROS). Hence, members of the GLP family have been proposed to play major role in plant disease resistance through ROS-mediated signaling. Interestingly, the functional characterization of GLP(s) in terms of their suitability as a key player in plant disease resistance has remained under-explored in case of tomato (Solanumlycopersicum L.). In the present study, 15 tomato GLPs, predicted to have oxalate oxidase activity, have been investigated in silico. Deduced multiple amino acid sequence alignment-based clustering of these proteins was carried out to classify them into 3 sub-families. All the proteins were found to contain the conserved amino acid stretches, representing the BoxA, B and C, and an inter-motif region of variable length. It was observed through homology modeling and structural alignment that the active sites of all except 3 of these proteins have Mn2+ bound at the active site involving the three conserved histidine and one conserved glutamate residue(s). The active site architecture was analyzed with a comparative view in order to examine the metal binding capacity of tomato GLPs. Thus the present work makes a platform for further genetic, molecular biological and functional genomics studies in the field of tomato GLPs, the possible key players for conferring biotic and/or abiotic stress tolerance, in future.
Abstract :
Wheat genotypes were evaluated under multi environment trials for Northern Hills Zone of India to study the adaptability performance. Genotypes HS612, HS507 and HPW430 were of high yield and better adaptability by analytic measures of adaptability based on BLUP values during 2015-16. Two interaction principal components, accounted for 89.9 % of total GxE interaction sum of squares in biplot analysis. HPW428, HS613, VL2020, VL2024 had specific adaptations to Almora and Malan while HS616, HPW423, HPW430, VL2021, HPW426 expressed for Shimla and Khudwani locations. Wheat genotypes HS612, HS507 and HPW430 were cited by analytic measures as per BLUE values. HPW429, HS613, VL2020, VL2024 had specific adaptations to Almora and Malan while HS616, HS618, HPW425, HPW426, HPW430, VL2023, VL2021, HPW426 observed for Shimla and Khudwani. Second year (2017-18) had seen high yield and better adaptability of HS631, HS632, VL2030, VL2025 genotypes as per BLUP values. Biplot analysis expressed specific adaptations of HPW429, HS613, VL2020, VL2024 to Almora and Malan locations. BLUE values based measures showed high yield and better adaptability of HS631, HS632, VL2030, VL2025 genotypes. Biplot analysis while utilizing 79.5 % of total GxE interaction sum of squares exhibited specific adaptations of HPW446, VL907, HS632, VL2025, VL2030 to Almora and Shimla. Stratification of wheat genotypes as per BLUP values was more efficient than that by BLUE. Biplot analysis exhibited more of GxE interactions sum of squares by first two significant principal components based on BLUP as compared to BLUE values.
Abstract :
Cymbopogon citratus is widely used in nutraceutical industries due to its strong lemony odor for its high content of the aldehyde citral and small quantities of geraniol, geranyl acetate and monoterpene olefins. Present studies were conducted to estimate the essential oil at different drying condition viz., sun-drying, shade-drying and oven-drying and analyzed for physicochemical properties (acid value, saponification value and iodine value). The maximum essential oil (3.05%) recovered in oven drying method while, the minimum saponification value (142.59 mgKOH/g) was recorded in sun drying method, however, the minimum acid value (4.14 mgKOH/g) and iodine value (114.31gI 2/100g) were recorded in shade drying method. The essential oils were analyzed by GC/MS instruments and identified eleven different components. Among the components identified, geranial (citral-a), neral (citral-b), caryophellene and limonene were found major components in the lemongrass essential oils.
Abstract :
Protein-protein interaction plays key role in predicting the protein function of target protein thus the identification of PPIs is of primary importance. The  in vitro  and  in vivo  methods have their own limitations, thus  in silico  methods which include structure-based approaches were developed. In this research work, we endeavor to identify the downstream interaction partners of (AtMAPK3P) in Arabidopsis thaliana using the docking approach. The results of our study revealed that out of 73 bZIP members of Arabidopsis thaliana 47 members are showing interaction with AtMAPK3P. Elucidation of protein interaction networks also contributes greatly to the analysis of signal transduction pathways. Recent developments along with the results obtained essentially enhance our knowledge of the MAPK interacting protein network and provide a valuable research resource for developing a nearly important link between pathogen-activated MAPK signaling pathways and downstream transcriptional programming.
Abstract :
A field experiment was conducted to study the “Effect of bulky organic manures and fermented liquid organics on growth, yield, nutrient uptake and economics of French bean (Phaseolus vulgaris L) under rainfed condition” at Organic Farming Research Centre, Zonal Agricultural and Horticultural Research Station (ZAHRS), Navile, Shivamogga, during Kharif 2018-19. The experiment was laid out in randomized block design with ten treatments comprising of different bulky organic manures (FYM and Vermicompost) and fermented liquid organic manures (Beejamrutha, Jeevamruta, Panchagavya and Cow urine) were replicated thrice. Experimental results revealed that, significantly higher growth, yield attributes, economics and nutrient uptake with good shelf-life and protein content of the French bean were found in the treatment which received Beejamrutha (seed treatment) + Jeevamrutha (soil application @ 500 L ha-1) + 100% RDN through vermicompost + Foliar spray of Panchagavya @ 3% (T6) and were on par with application of Beejamrutha (seed treatment) + Jeevamrutha (soil application @ 500 L ha-1) + 50% RDN through FYM + 50% RDN through vermicompost + Foliar spray of Panchagavya @ 3% (T7) and Beejamrutha (seed treatment) + Jeevamrutha (soil application @ 500 L ha-1) + 100% RDN through FYM + Foliar spray of Panchagavya @ 3% (T5). Simillar trend of higher benefit cost ratio was also recorded in the same set of treatment combination. This study indicated that combined application of bulky and fermented liquid organic manures in seed treatments, soil application and foliar spray performed better in organic French bean production at best benefit ratio cost.
Abstract :
The present paper aims to maps Cr, Cd, Ni and Pb concentration and assess the hazard in the soils of surrounding agricultural fields affected by oil refinery drainage of Digboi refinery of Tinsukia district, Assam using statistics, geostatistics and GIS techniques. The amounts of Cr, Cd, Ni and Pb were determined from 97 samples collected within the contaminated area. Among the heavy metals studied, the mean concentration of Pb was high. The greatest and the smallest standard deviation were observed in the Ni (44.1) and pH (0.47), respectively. Analysis of the isotropic variogram indicated that the Cr and Cd semivariograms were well described with the circular model, with the distance of spatial dependence being 1240 and 1022 m, respectively, while the Pb and Ni were well describe with Gaussain model, with the distance of spatial dependence being 1930 and 2321 m, respectively. The ordinary kriging maps of Cr, Cd, Ni and Pb showed that high concentrations of heavy metals were located in the low lying area. Indicator kriged probability maps of soil Cr, Cd, Ni and Pb were prepared based on the concentrations to exceed the respective Food and Agriculture Organization maximum permissible limit (MPL) value of 100, 3, 30 and 50 mg kg−1, respectively. It was seen that whole studied area had a higher than 0.99% probability to exceed the MPL value of Pb. About 10% area of the study site was having higher concentration than MPL value of Cd and Ni concentrated at the centre and north-west corner of the study area, respectively.
Abstract :
Baramasi lemon is an attractive fruit for its unique flavor and acidity. Harvesting period of winter crop of Baramasi lemon coincides with the cooler part of the year and there is low consumption of lemon fruits during winters, which leads to the glut in the market. Baramasi lemons are sensitive to chilling injury and it is difficult to store in the commercial cold stores. So, there is a need to enhance the shelf-life of Baramasi lemon fruits at ambient conditions. Keeping this in view, an experiment was conducted during 2014 to study the effect of chemicals and modified atmosphere packaging on the storage life and quality of Baramasi lemon fruits. Mature green Baramasi lemon fruits of uniform size and colour were harvested and treated with gibberellic acid (25, 50 &75 ppm), boric acid (1, 2 and 3%) and sodium benzoate (2, 3 and 4%) and packed in low density polyethylene (LDPE) bags. Fruit were analyzed for various physico-chemical characteristics after 15, 30, 45 and 60 days of storage. Results revealed that minimum spoilage and total soluble solids (TSS) and maximum physiological weight loss reduction, palatability rating, acidity were recorded in gibberellic acid @ 75 ppm + LDPE packaging during the entire storage period. It can be concluded that gibberellic acid @ 75 ppm along with LDPE packaging was found to be most effective in extending the post-harvest life of Baramasi lemon fruits at ambient conditions for 60 days.
Abstract :
Nonlinear optimization design models were developed for field conditions to design and manage border irrigation system using Lewis-Kostiakov infiltration equation. The design criterion used in the models was the depth of irrigation and basic infiltration rate of the soil. The objective function of the nonlinear model was constructed on the basis of a relationship between net returns and water application efficiency. The design variables of the models were the inflow rate, length of run, cutoff time, number of borders per set and number of sets. The nonlinear model gives a better representation of the design parameters and is more flexible because it permits easy changes in the objective function.
Abstract :
Development of insect resistance and risk to the environment due to indiscriminate use of conventional chemical pesticides for insect pest management favored the introduction of one of the new alternatives as biological control. Entomopathogenic fungi are one of the most versatile biological control agents for sustainable management. The most considerable fungal species are Metarhizium spp., Beauveria spp., Nomuraea rileyi, Verticillium lecanii and Hirsutella spp. Out of these fungi, V, lecanii are opportunistic and widely distributed ascomycete fungi that has the ability to cause mycosis in a number of insects of orders Homoptera, Coleoptera and Lepidoptera. V. lecanii are easy to mass produce, store and are effective over a wide range of temperatures and humidity levels. It also provides a rapid kill at optimum doses and the fungus has been recently commercialized as a microbial agent for pest management. It has the additional features to produce extracelullar enzymes, such as chitinases which helps in promoting host colonization. It also shows compatibility with commonly used agrochemicals such as insecticides or fungicides and other biocontrol agents. Because of these numerous advantages, it can be considered as a potential biocontrol agent’s in integrated pest management.
Abstract :
Farmers are presently facing tough times. Farming is hard physical labour from morning to evening. Managing a farm can lead to monetary stress, anxiety, depression, financial ruin, marital strife, and addiction. The mental health message should reach not only to the farmers but also to the bankers, extension workers, counsellors and veterinarians. Farmers face a number of challenges when it comes to their mental health. Farming can create stress that can seriously impact the farmer’s well being. Some of the behavioural signs due to stress in farming are loss of interest in social activities, poor concentration, confusion, forgetfulness, indecision, impatience in relationships, irritability, and withdrawal from society. Some of the physical symptoms are poor or disturbed sleep, weight loss or gain, changes in appetite, stomach upset, headache, and chest pain. In farms and rural areas issues of mental health are often ignored. The present is not an easy time to be in agriculture. Low commodity prices and mounting input costs are resulting in poor returns from farming. This has led to mental stress amongst farmers, which when unaddressed can lead to serious consequences in the farming community. Farmers and their families facing high levels of stress get into depression and even nourish suicidal thoughts. In rural areas, there is a paucity of mental health professionals who are culturally competent to serve farmers. In times of great stress, farmers need someone to talk to and get advice from. It can make all the difference in sorting out during troubled situations. Extension workers and advisors should understand the mental well being of farmers. Social activities must be encouraged and avenues for entertainment must be created in rural areas for farmers to get away from farm stress.
Abstract :
In India finger millet is mostly cultivated in resource poor soils of tropics and sub-tropics. Synchronizing nutrient supply with crop demand is essential to maximize yield and fertilizer use efficiency. It has been found that incorporation of N fertilizer during seeding stage increased yield as compared to broadcasting of fertilizer. The continuous application of inorganic N fertilizer reduced the soil organic carbon level. The foliar application of 2% urea produced higher grain and straw yield. Application of fertilizer P @ 125% recommended dose of phosphorus (RDP) with recommended N, K and FYM in different fertility soils recorded higher grain and straw yield. Nutrient management for targeting production and sustainability, integrated nutrient management (INM) will be the most suitable option. Application of 100% NPK along with FYM @ 10 t ha-1 recorded significantly higher grain and straw yield and enriched the soil organic carbon. Application of farmyard manure (FYM) alone or in a combination with chemical fertilizers contributed to higher amounts of carbon inputs and build up a higher soil organic carbon pool in rain fed groundnut–finger millet rotation in alfisol of semi-arid region. Cropping system approach either sequential or intercropping with legume was found beneficial. Treating seeds with Azospirillum brasilense (N fixing bacterium) and Aspergillus awamori (P Solubilizing fungus) @ 25 g kg-1 seed of finger millet found to be beneficial. Soil test crop response (STCR) need to be considered for supplying nutrients more precisely with a target yield output. In the present paper, the available literature on different options of nutrients application to finger millet for sustainable productivity is reviewed.
Abstract :
An integrated farming system comprises the crop production, livestock, horticulture crops and fisheries etc. The status of these combinations depends on the prevailing modal of these systems in a particular area. Therefore, it is necessary to identify the existing major integrated farming systems with internal cost adjustment, return, income and employment in the farming systems. The present study was conducted in Raigad district of Maharashtra during year 2015-16. A total sample of 120 households was selected. Out of seven farming systems six systems were found livestock based systems, viz; FS-I: Crops + Vegetable, FS-II: Crops + Dairy, FS-III: Crops + Poultry, FS-IV: Crops + Vegetable + Dairy, FS-V: Crops + Poultry + Dairy, FS-VI: Crops + Vegetable + Goat and FSVII: Crops + Vegetable + Orchard + Dairy. The total cost of farming system was minimum in FS-I and highest in FS-V. On per farm basis employment generated was minimum in FS-I (267.76 man days) and maximum in FS-V (758.82 man days).
Abstract :
Present investigation was carried out to access the agrobiodiversity, composition and functional characteristics of homegardens in bhimtal block of Nainital district, Uttarakhand during 2011-12. The study was carried out in three villages diversified in respect to elevation and agroecological situations viz., Amritpur (520 mts) at low hill, Jeolikote (1219 mts) at mid hill and Ghorakhal (2000 mts) at high hill in Bhimtal block of district Nainital. In these villages a total of 22 respondents of different economic status in each village with a total of 66 respondents were selected and interrogated for the information related to the study. It was found that 80.30 per cent household practicing homegardening and the tree species, fruit tree species (Malus domestica, Citrus sinensis, Psidium guajava), sacred groves species (Ficus roxburghii, Tamarindus indica, Aegle marmelos), timber, fuel wood and fodder tree species (Grevia optiva, Toona ciliata, Mangifera indica, Citrus aurentifolia) were contributed as 33.33, 38.09, 11.90 and 40.74 per cent respectively.
Abstract :
Whitefly Singhiella pallida Singh is an important pest of betelvine, Piper betle L. infesting the crop throughout the year. The temperature played a crucial role in the population build up of the pest. The moderate temperature falling between 16°C to 20°C was found very much conducive for pest population development. However, relative humidity had a little role in population build up of the pest as compared to temperature. In contrary, rainfall was found detrimental to it. Prajneshu growth model was found to be most suitable non-linear growth model for prediction of the pest population build up. The 48th standard week was identified as the optimum time for intervention through insecticidal application as a prophylactic measures to check the peak pest population; supposed to be attained at the 52nd standard week as evidenced from pattern of population growth.
Abstract :
Mango is the second major fruit crop cultivated in India, it is known as “King of fruits” owing to delicious quality of fruit with richness in vitamins and minerals and has a socio economic significance in international market. It is attacked by many insects and mite pests; the yield and quality aspects of the mango are highly inflicted by fruit flies and make it unmarketable and inconsumable. The varied agro climatic conditions prevailed in tropical and subtropical regions makes them to spread all over the country. The documented information in a particular area on the population dynamics of fruit flies is essential to take preventive measures and to implement suitable management strategies. Keeping this in mind, the experiment on its species diversity, distribution pattern with its varietal preference of fruit flies in mango ecosystem was undertaken by using methyl eugenol based parapheromone traps during 2017-18 at Anbil Dharmalingam Agricultural College and Research Institute, Tamil Nadu Agricultural University, Tiruchirappalli. The major diversity of species registered in mango ecosystem is viz., Bactrocera caryeae (Kapoor), B.dorsalis (Hendel) and B.correcta (Bezzi). The activity of fruit fly is maximum in the month of August and September with the mean catch ranges from 27.00 to 57.00 flies/trap/week. The poor activity of fruit flies in mango orchards was registered in the month of November to February with the least trapped population of < 3.0 flies/trap/week. Considering the varietal preference, the prevalence of B.correcta both in rumani and PKM 1 varieties is comparatively less when compared with the B.dorsalis and B.caryeae. The correlation analysis results revealed that, the fruit fly incidence is positively correlated with maximum, minimum temperature and negatively correlated with morning, evening relative humidity (RH) and rainfall.
Abstract :
Study was conducted for the in vitro multiplication of madhunashini by using immature seeds as explants. Immature seeds were cultured directly on to media containing different concentrations and combinations of auxin and cytokinin. Germination of seeds into plantlets was observed in the media containing cytokinins, however, the seeds cultured on media containing auxins at the expense of plantlet formation produced callus. Cent per cent of the explants responded when inoculated on Murashige and Skoog (MS) media containing Benzylaminopurine (BAP - 1.0 mg l-1), Kinetin (Kn - 0.5 mg l-1, 1.0 mg l-1 and 2.0 mg l-1) and BAP + Kn (1.0+1.0 mg l-1). Height of plantlet (19.74 mm) was significantly higher in MS media supplemented with BAP 0.5 mg l-1. Maximum number of leaves (3.12) were produced on MS media supplemented with Kn 2.0 mg l-1. Nodal explants obtained from in vitro seedlings when cultured on the media containing cytokinins induced proliferation of shoots. Number of shoots (5.50) produced and length of shoot (18.53 mm) was found to be maximum at lower concentrations of BAP 1.0 mg l-1 and Kn 0.5 mg l-1. Leaves from in vitro seedlings when used as explants and cultured on media with cytokinins did not show any response.
Abstract :
Plant growth promoting bacteria (PGPB) play an important role in agricultural production and soil fertility. Wheat is a highly consumed cereal food crop of the world population and sustainable wheat productivity achieved by the application of bacterium in combination with NPK is promising. In the present study bacterial isolate (PR6) from soil of organic farm was included. The isolate (PR6) was screened for its morphological, biochemical and plant growth promoting characteristics, sequenced by 16S rDNA method and submitted to NCBI for the confirmation of strain identification. Further, the inoculation effect of the bacterial isolate in combination with NPK on growth and yield parameters of wheat var. AAI-W6 were analysed. The isolate (PR6) was identified as Erwinia sp. with NCBI Accession No. KP226572. The organism possessed multiple plant growth promoting (MPGP) traits such as production of ammonia, siderophore, indole-3-acetic acid (IAA), ACC Deaminase (ACCD) and showed phosphate solubilization activity. The organism was found tolerant to 10% salt, wide range of pH 5- 9, higher levels of trace elements and heavy metals and possessed resistant to multiple antibiotics. Inoculation of wheat variety AAI-W6 with the Erwinia species showed significant increase in seed germination and enhancement in elongation of root and shoot compared to untreated control. The combined application of PGPB (Erwinia sp.) along with NPK treatments showed similar significant results in all growth and yield parameters of wheat. This study is the first report on the beneficial effects of organic farm isolated Erwinia-NPK treatment combinations on sustainable wheat productivity.
Abstract :
Salinity is one of the major yields limiting factor that limit the worldwide productivity and distribution of cereal crops and the development of genetically engineered plants with enhanced tolerance to salt presents an important tool to increase the productivity. We introduced glyI (glyoxalase I) gene from Brassica Juncea into rice variety PR116 through particle bombardment for salt tolerance. Integration and expression analysis in T0 and T1 generations were confirmed through Polymerase chain reaction and in vitro screening for salt tolerance. In this study we confirmed the integration and expression of gene (glyI) in next two generation (T2, T3) through Polymerase Chain Reaction and methylglyoxal experiment. Expression of glyoxalase I gene was induced by different concentrations of methylglyoxal treatment and most of the transgenic lines were highly tolerant to methylglyoxal and showed high chlorophyll content after 72 h of treatment.
Abstract :
The root-knot nematode, Meloidogyne incognita is the main nematode pest with host range more than 3000 plant species causes vast damage worldwide. The knowledge of genetic diversity in a crop species is essential for its improvement. Microsatellite sequences are especially suited to distinguish closely related genotypes in crop like ridge gourd. Several susceptible and resistant ridge gourd cultivars to root-knot nematode were identified on the basis of artificial screening and the present investigation was under taken for purity discrimination and characterize of these cultivars at molecular level taking ISSR markers. Standardized reported procedure was followed in order to conduct the experiment. The phylogenetic tree constructed by UPGMA method generated two main clusters i.e., cluster-I and cluster - II. The cluster I was further sub-divided into sub-cluster IA and IB. The cluster I consisted of three varieties (Aneeta, Aarti and BSS-1009), while cluster II consisted of two varieties (Harsha and Priya). Sub-cluster IA consisted of one variety (Aneeta), while Sub-cluster IB consisted of two varieties (Aarti and BSS-1009). Polymorphic per cent ranges from 13.16 per cent (between BSS-1009 and Aneeta ) to 43.18 per cent (between Aarti and Harsha). This study showed that ISSR markers produced specific DNA fragments for the identification of ridge gourd varieties. The knowledge acquired through this investigation may play a pivotal role in the application of molecular markers in ridge gourd improvement programmes.
Abstract :
Morphometric analysis and thereby prioritization of watersheds have gained significant importance in land and water resources management. In this study an attempt has been made to prioritize sub-watersheds based on morphometric analysis using geospatial techniques in Umar Nala watershed of Narsinghpur district, of Madhya Pradesh. Morphometric parameters, considered for the present study are stream frequency (Sf), drainage density (Dd), texture ratio (T), elongation ratio (Re), circulatory ratio (Rc), form factor (Rf), bifurcation ratio (Rb) and relief ratio (Rh). These parameters were estimated for each sub-watershed then ranks were assigned for prioritization of sub-watersheds on the basis of value/relationship to arrive at a computed value for final ranking of the sub-watersheds. On the basis of morphometric parameters determined in GIS environment and then applying standard formulae prioritization among seventeen sub watersheds of Umar Nala, sub watershed no 10 is on top priority among seventeen sub watersheds for further soil and water conservations measures to be taken in the watershed.
Abstract :
Bhadra, (2007) developed Integrated reservoir based canal irrigation model (IRCIM). It consist of catchment, reservoir, crop water demand modules. In this study, IRCIM was applied on Kangsabati irrigation project, West Bengal, India for period of 1998 to 2003. Runoff was predicted using two techniques namely, Distributed SCS Curve Number (CN) with Muskingum routing and Artificial Neural Network (ANN) Backpropogation techniques available in catchment module. Distributed SCS CN method requires subbasin information, land cover characteristics, overland and channel information and daily rainfall on subbasin, whereas ANN method requires daily rainfall and runoff values. Catchment module was calibrated and validated using performance criteria modelling efficiency (ME) and coefficient of residual mass (CRM). ANN technique of runoff prediction involves extensive training of the network, where the unpredictable correlation of rainfall and runoff is also been taken into consideration which is not possible for conceptual model such as SCS CN method. Thus, results showed that for Kangsabati reservoir catchment, runoff values, predicted using ANN result in better match with observed runoff values compared to semi-distributed conceptual SCS CN method.
Abstract :
Abstract :
The experiment was conducted at Instructional cum Research Farm, Department of Horticulture, Biswanath College of Agriculture (AAU) Biswanath Chariali, Sonitpur district of Assam during 2014-15 in order to study the response of plant growth regulators on physiogical and fruit yield of brinjal (Solanum melongena L.) cv. JC -1. The experiment was laid out in a Randomized Block Design with ten treatments replicated three times. The details of treatment comprised of GA3 (25, 50 and 100 ppm), IAA (25, 50 and 100 ppm), NAA (25, 50 and 100 ppm) and control (distilled water). During the period of investigation the growth regulators showed significant response on physiological and yield attributing characters of brinjal. The result revealed that the maximum leaf area index (2.82) was recorded under GA3 at100 ppm (T3) while GA3 at 50 ppm (T2) recorded the highest (802.40 g) total dry weight per plant at harvest. However, the highest leaf chlorophyll content index (44.50) was recorded under treatment with NAA at 50 ppm (T8). Foliar application GA3 at 50 ppm (T2) exhibited significantly higher total number of flower per plant (38.49), number of fruit per plant (18.56) and fruit yield (1.58 kg plant-1 and 377.00 q ha-1). It may be concluded from the experiments that GA3 proved to be the best in improving the physiological and yield attributing parameters in brinjal.
Abstract :
Babul (Acacia nilotica) is an important multipurpose, leguminous tree species, grown widely under agroforestry systems in India, Middle-East Asia, and Africa. It is an important source of fodder, fuel, timber, gum and medicines. The salinity tolerance ability of Babul in 15 provenances (Sagar, Jabalpur, Raipur, Nagpur, Akola, Khandwa, Ujjain, Shajapur, Bhopal, Guna, Jhansi, Bharatpur, Jaipur, Rewari, Karnal) were investigated using petri dishes and poly bags. The solutions of different compound like sodium chloride, sodium bi-cardonate, calcium chioride, magnesium sulphate and calcium sulphate was prepared with five level of salinity concentration, which have electrical conductivity of 3, 6, 9, 12 and 15 dSm-1, respectively. Among the five doses of salinity, the highest does EC 15 dSm-1 was found most deleterious to the seed germination of Babul in all the provenances. Out of 15, ten provenances had more than 50% reduction in germination at EC 9.0 dSm-1. Akola, Khandawa, Guna and Jaipur provenances were least affected by the increased level of salinity under both the test i.e., petri dishes and poly bags and hence these provenances may be called as most tolerant to salinity.
Abstract :
Rooftop water conservation is a promising technique for sustainable water resource management especially in urban areas. The tedious available roof top area estimation can be made easy with advances in geospatial technologies. The present study taken up to develop the roofing layer to estimate potential rooftop area from high resolution satellite imagery (1 m) i.e., Google earth Pro in GIS environment. The roof surfaces are considered as the micro catchments and GIS is employed to calculate the area of various types of roofs and their potential for planning of water harvest. The results are validated for errors in digitization by ground-truthing against 112 household systems through manual measurement. It is also attempted to identify the type of the roof to know the quality of the harvested water. The annual rainfall was analyzed to quantify the potential of the rainwater harvesting. The results of this study will demonstrate the Application capability of Google Earth Pro and GIS in estimating rainwater harvesting potential to tackle the prevailing water shortage. The estimated total roofing area is 818565.53 sq. m. The results of the study revealed the huge potential of 71.154 cubic meter with 1 mm of uniform distribution of rainwater over the roof tops.
Abstract :
This paper explains all the chances of environmental biotechnology techniques useful in aquaculture and reviews its various areas together. Biotechnology has played a vital role in boosting production in the aquaculture sector. Considering the number of issues which deteriorate the ecological conditions in an aquaculture system, the field of environmental biotechnology has shown new possibilities to enhance the terms. Since the environment turns to be a vital segment in the survival of aquatic flora and fauna its day by day deterioration via pollution and toxic substances are need to be checked. The distinct role of environmental biotechnology within the sector of aquaculture emphasized finding the opportunities to contribute with new solutions and directions in remediating the contaminated environments, minimizing future waste release and creating pollution prevention alternatives.
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Abstract :
Pesticide is one of the major inputs for commercial vegetable farming in Nepal. The study examined pesticides use pattern and farmers’ knowledge, perception, awareness about pesticides and the handling practices. The study is based on survey data consisting of 150 samples collected randomly from Parsa district of Nepal. The results show that 54.7% of the cucumber farmers used pesticides as control measure of insect and fungus in Parsa district. Out of which insecticides was found to be applied more i.e.68% followed by the fungicides i.e. 22.33% of total application volume sprayed. Regarding toxicity level farmers were found to use Moderately Hazardous Pesticides (II). The research identified that farmers do 2 times spray as mandatory frequency of application however, nearly half of farmers were found to spray pesticide four to five times. Regarding their knowledge 53% of farmers found to read label on pesticide bottle/packages. More than half (57%) of the farmers has found to receive Integrated Pest Management (IPM) training but only 7% practiced alternative pest control measures. Regarding the disposal only 6% found to bury the empty bottles, packages after use and others throw the containers anywhere. The results show that, in Nepal, pesticide was mostly applied for the vegetable farming. If area under vegetable farming increases by 1% the probability of the pesticide application by household is increased by the 22%.
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The Tons basin is the subbasin of the river Ganga having its geographical extent of 80°18’ to 83°20’ east longitude and 23°58’ to 25°17’ north latitudes of the country. The major river in this sub-basin. Tons is the longest tributary of Yamuna river. Total basin area in Madhya Pradesh is 11974 km². Total land put to use for agriculture purpose in Tons basin is 8460 km². State of Madhya Pradesh has varied hydrogeological characteristics due to which ground water potential differs from place to place. An attempt has been made to delineate the groundwater potential zone of the Tons basin using spatial data. For delineation of groundwater potential zones, thematic maps of different governing themes of groundwater potential zone such as geology, drainage, drainage density, Land use/Land cover, slope, soil texture have been created to their relative importance. A multicriteria decision analysis technique i.e., Analytical Hierarchy process (AHP) technique have been used for the probable weightage of different governing themes. Weighted index overlay analysis tool in ArcGIS 10.3 have been used for the creation for groundwater potential zone. The resultant map demonstrates possible groundwater potential zone of the Tons basin under three categories such as Good groundwater potential, moderate groundwater potential and poor groundwater potential. From the study it was concluded that, delineation of groundwater potential zones helpful for the information of groundwater prospective zone, extraction and development of groundwater and better planning and management.
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In the water scarce situation, measurement of flow in open channel reduce the pressure on water resources and promotes the better utilization of water. The present study aimed at developing critical flow circular flume with rectangular centre contraction. The circular flume was designed by placing rectangular block in a U- shaped channel. Six flumes were fabricated with different contractions and throat lengths (30%, 40% and 50% contractions and 15 cm and 30 cm throat lengths). Water surface profiles were collected for four discharges (6, 9, 12 and 15 Lps). Critical depths were computed and located on the water surface profiles. The study revealed that the critical flow conditions occurred at 15, 12 Lps in all six flumes. At low discharges and low contractions critical flow conditions not occurred in the throat. The head discharge equations were derived the computed discharges are compared with the actual discharges. The highest deviation observed in case of Flume -1 (-8.344%). 90 % of the errors are within the range of ± 5%.
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The investigation was aimed to identify stable genotypes of durum wheat which can perform consistently under multiple environments. The experiment was conducted in Research Area of CCS Haryana Agricultural University, Hisar during rabi 2015-16. In the present investigation seven released varieties of durum wheat were evaluated on four environments (timely vs late sown, irrigated vs drought) in randomized block design with three replications. Grain yield data was collected from randomly selected five plants of each genotype and used to carry out GGE biplot analysis using the R software and GGEBiplotGUI package. Analysis of variance revealed significant genetic variability among the genotypes. Significant variability was also observed due to both environment and GEI. The four environments were grouped into three major groups. Both irrigated environments were grouped together and were more alike for genotypic comparisons. Genotype WHD 948 was the most stable genotype in all the environments.
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Achieving high-throughput and efficientregenerationare the top priorities of any Agrobacterium mediated plant transformation experiments to develop large numbers of in vitrotransformants. The type of explant plays a critical role in shoot regeneration efficiency. In the present investigation, an attempt was made tostudy the effect of various segments of hypocotyl and abaxial/adaxial orientation of cotyledon explants on regeneration efficiency in tomato.A plant transformation vector,pGRNAi-harboringdsRNAexpressing constructstargeted totwo genes of Helicoverpaarmigera,serine proteaseand chymotrypsinindependently wereused totransformtomato.Of the three segments of hypocotylsobtained from 12 day old seedlings, the proximal (closest to shoot apex) segment hadyielded highest regeneration (28.65%)compared to the middle (11.86%)and the distal segments (11.20%).In cotyledon explants,those incubated with their abaxial surface in contact with media exhibited highest regeneration (20.83%) compared to adaxially placed cotyledon explants. However, of the two-explant types, hypocotyls had higher regeneration compared to cotyledons. The molecular characterization of putative transformants through PCR and Southern blot analysis revealed the presence of the transgene. Thus, these results will aid in obtaining high-throughput regeneration in transformation of tomato in particular and other crops in general.
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A field experiment was conducted to study the effect of environments (timely sown and late sown) on crop phenology development, yield and fibre development of Bt and non-Bt cotton hybrids viz., G cot hy 8 BG II (Bt), G cot hy12 (non-Bt), NCS 145 BG II (Bt), DHH 263 (non-Bt), Ankur 3028 BG II (Bt) and LHH 144 (non-Bt) commonly grown in different ecological zones of the country. Results revealed that timely sown crop produced significantly higher seed cotton yield (14.80 q/ha) than the late sown crop (8.00 q/ha) due to petite crop canopy, lesser number of sympods, bolls and lower boll weight per plant. The maximum seed cotton yield was recorded with Ankur 3028 BG II (14.72 q/ha) which was significantly superior to all other Bt as well as non-Bt cotton hybrids. Further, LHH 144 (12.94 q/ha) and G cot hy 8 BG II (12.88 q/ha) recorded significant edge over rest of the hybrids. Among the rest of the hybrids, G cot hy 12 (10.81 q/ha), DHH 263 (9.09 q/ha) and NCS 145 BG II (7.99 q/ha) followed significantly diminishing order in seed cotton yield. The higher yield in Ankur 3028 BG II, LHH 144 and G cot hy 8 BG II was mainly attributed to higher sympods, boll number and boll weight per plant. The fibre length was also significantly more in timely sown crop as compared to late sown crop. Among the hybrids, Ankur 3028 BG II registered significantly more fibre length than rest of the hybrids.
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A field experiment was conducted at Agriculture Research Farm, Bagusala, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi, Odisha during summer season, 2018-19. The soil of experimental field was sandy clay loam in texture, slightly acidic in reaction (pH 6.4) low in available nitrogen (208 kg/ha) and high in both phosphorus (139 kg/ha) and potassium (390 kg/ha). The field experiment was laid out in split-plot design with three replications and 12 treatments combination. The treatments were comprised of three water regimes assigned in main plot (Continuous ponding, continuous soil saturation and saturation after hair crack) and four transplanting dates in sub plots (Transplanting on 23rd and 31st January, 6th and 13th February). The experimental results revealed that irrigation treatments failed to exhibit significant effect on growth parameters like plant height, tillers/clump, LAI, dry matter production and CGR until the peak crop growing period up to 60 DAT excepting plant height at 60 DAT. Crop growth parameters except LAI were significantly influenced by irrigation regimes at harvest. Irrigation regimes had the remarkably effect of grain yield and WUE but it had no significant effect on straw yield. Irrigation with continuous ponding produced the highest grain yield (4.57 t/ha) which was at par with continuous soil saturation (4.30 t/ha). The WUE was significantly increased with saturation after hair (49.62 kg/ha/cm). Dates of transplanting significantly reflected all the crop growth parameters throughout the crop growing period. Transplanting on 23rd January significantly recorded the highest grain yield (4.72 t/ha) and maximum straw yield was obtained in 31st January (7.99 t/ha) being at par with 23rd January (7.63 t/ha). Significantly the highest WUE was obtained in transplanting date of 23rd January (47.09 kg/ha/cm).
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The Developed system is designed to produce the charcoal from biomass samples like Jatropha seed husk, Melia Dubia and Prosopis juliflora. The technology adopted is hybrid by combining both direct and indirect method of heating the biomass based on pyrolysis. The temperature is in the range of 300 °C to 500 °C. In results of the proximate analysis showed the fixed carbon content is increased in this pyrolysis unit charcoal whereas biomass sample and existing pyrolysis unit charcoal showed lower fixed carbon content. The charcoal yield efficiency is 34.84% whereas in conventional method of charcoal making the charcoal yield efficiency is about 20%. The mass and energy closure were found to be 72.72% and 80.30%.
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Among different explants, cotyledon showed highest regeneration and number of buds per explant on all media combinations. However, highest regeneration potential was observed on MS fortified with 3.0 mgl-1 BAP (80.36%), but number of buds per explant were highest (21.76) on MS media supplemented with 2.5 mgl-1 BAP+ 1.0 mgl-1 Kin. Plant regeneration of cotyledons was completely checked with a selection pressure of 15ppm to 25ppm hygromycin for untranformed explants. But the selection efficacy of transformed tissue was 19.56% with 20ppm and 66.66% with 15 ppm hygromycin. GUS gene was expressed in 76.92% bombarded explants with 2 to 7 GUS spots per explant confirming the presence of transformed tissue. GUS gene was also visualized in 66.66% regenerated shoots from bombarded tissue. PCR analysis of putative transgenic eggplant plants with the specific primers confirmed the presence of Cry1Ac gene with 1.2 KB product size (falling between 1KB and 2KB bands of 10KB DNA ladder) in two of the four plants.
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The field experiment was carried out at the farmer’s field in Chella Kamarpara village, Chella G.P, Chella Mouza of Illambazar Block, Birbhum, West Bengal which is situated at 23o 37.374’ latitude and 87o37.170’E longitudes with an average altitude of 58.9 m above mean sea level under sub-humid, sub-tropical belt under the prevailing climatic conditions of West Bengal during the Kharif season of 2013. The experiment consisted of the five levels of nutrient management i.e., N1: State recommendation (150:75:75), N2: Nutrient expert (NE) recommendation (120:34:51), N3: Farmers practices (80:40:40), and N4: Basal application of 50:75:75 with split N application on basis of LCC (leaf colour chart), N5:control and two level of varieties viz. V1: Sona and V2: Rajkumar, the total number of treatment combinations are ten, which were replicated thrice and was laid out in factorial randomized block design (FRBD). To evaluate the effect of nutrient management on the growth, productivity and economics of hybrid maize cultivation. Nutrient management has played an important role in achieving sustainability of grain production. The chemical fertilizer consumption coupled with their limited production, fertilizer cost, soil health and pollution have given rise to interest in precision nutrient management tools. It was the found that the Growth, productivity, nutrient uptake and economics of hybrid maize (Zea mays L.) as influenced by precision nutrient management which was significantly affected by different level of nutrient management and varieties. Whereas, LCC based application of fertilizer gave better result than all other treatment but it was also statistically at par with Nutrient expert based recommendation.
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The objective of the study was to assess the morphological variation and genetic divergence among carnation accessions based on agro-morphic traits. Analysis of variance indicated significant difference among the genotypes for different agro-morphological traits. The cultivar Rebra had maximum plant height, stem length, leaf pair per stem while earlier bud appearance was found in cultivar Tabor. Maximum days took to bud appearance exhibited by cultivar Niva. The minimum days taken to bud opening were observed in Irene and maximum days took to bud opening found in cv. Baltico. The maximum flower duration was recorded in cv. Irene and the minimum flower duration exhibited by cv. Kazhrela. Cultivar Rebra produced larger flower while, cv. Jureno gave smaller flower. On the basis of D2 analysis, the 25 genotypes could be grouped into 3 clusters. Cluster II accommodated highest number of 11 genotypes, followed by, cluster I with having 10 genotypes and cluster III contained 4 genotypes only. The maximum inter-cluster distance was observed between cluster III and I followed by, cluster III and II) and minimum inter-cluster distance showed between cluster II and I. As far as the cluster means are concerned, genotypes consisted in cluster II had highest mean value of plant height, stem length, flower duration and flower diameter while some genotypes showed higher mean value for the characters like earlier bud emergence in cluster II and cluster I. Therefore, a hybridization programme may be initiated involving the genotypes belonging to diverse clusters with high mean for almost all the component characters.
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Fusarium species mainly produce fumonisins group of mycotoxins which are classified as Group 2B human carcinogen by International Agency for Research on Cancer (IARC). In poor storage conditions, Fusarium species producing fumonisins can infect rice or paddy (Oryza sativa L.) which is the highest produced and consumed staple food in India. A rapid molecular method using primer Fum5F and Fum6R detected 85% fumonisin producers among 28 Fusarium isolates from Indian rice cultivars. Genetic variability of the isolates was studied by PCR based RAPD assay using 13 random primers. A total of 169 polymorphic bands were obtained by 13 markers with an average polymorphism information content (PIC) of 0.665 and overall polymorphism of 88%. Primer 3B showed a polymorphism of 96% with PIC value of 0.66 and it amplified 26 scorable fragments hence may be useful for the analysis of genetic variation among Fusarium isolates. Four strains (F47, F90, F92 and F96) in which fum gene wasn’t amplified by Fum5F and Fum6R and supposed to be non producer of fumonisin have been consistently placed in one separate group by RAPD primers. Genetic variation of toxic Fusarium in rice from India is less studied. RAPD proved to be a suitable tool for depicting Polymorphism among the isolates. The high genetic variability among the Fusarium isolates used in the current study is a matter of concern considering the importance of Rice in India.
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Brucellosis is an infectious disease characterized by abortion and infertility in several mammalian species including buffaloes, and is one of the most important zoonosis worldwide. The objective of present study was to establish the seroprevalence of brucellosis in buffaloes in North India and to know the exact causal species of Brucella organism. A total of 160 serum samples were analyzed. The seroprevalence of Brucellosis was 4.38% and 7.50% by Rose Bengal Plate Test (RBPT) and Standard Tube Agglutination Test (STAT), respectively. Seroprevalence was zero by both RBPT and STAT in organized dairy farm while in unorganized sector, 5.04 and 8.63% by RBPT and STAT, respectively. Age-wise seroprevalence was higher in 4.5 to 6 years old buffaloes than younger. Area-wise seroprevalence was higher in Satwari block of study area. On screening of 20 milk samples from serological positive and doubtful buffaloes by milk ring test, five samples were positive (25%). On isolation of from samples, only one sample yielded Brucella abortus. The results showed that younger buffaloes were less infected than adults. Prevalence of Brucellosis was higher in Satwari block of Jammu province compared to other study area. The presence of Brucellosis in bovine may pose a significant economic loss to the farmer and a public health hazard to the general population.
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The present study is based on the analysis of yield obtained from the Front Line Demonstration Programmes (as Demonstration is one of the most time-tested method in Extension Education) on Oilseed Crops (viz. Sesame, Rapeseed and Mustard and Linseed) organized by the Rathindra KVK in Medium and High Land Farming Situations of Birbhum District and comparative yield analysis over the Birbhum District Average and the West Bengal State Average. The study revealed that the FLD Programme on Sesame; Rapeseed and Mustard and Linseed produced an average yield higher than the Birbhum District Average and also higher than the State Average consistently over the years (as mentioned in the Paper) with the one and only exception in the Rabi Season of 2017-18, when the State Average Yield of Rapeseed and Mustard was higher than the Average yield achieved in the Rathindra KVK FLD Progtramme. The Study also pointed out another important fact that the Birbhum District average yield of Sesame; Rapeseed and Mustard and Linseed were consistently and significantly lower than the state Average with only bright and positive exception in the case of Linseed (the Birbhum District Average Yield of Linseed was higher than that of the state average in both the years of 2016-17 and 2017-18) showing a huge un-tapped potential for production of Linseed in the District. The study further showed us that the positive yield gap achieved by the FLD Programme on Sesame, Rapeseed and Mustard and Linseed over Birbhum District Average Yield and at same time over the West Bengal State Average Yield was consistently and significantly higher in the specified time period with the only exception in the Rabi Season of 2017-18, when the State Average Yield of Rapeseed and Mustard was slightly higher (by 0.25 q / ha) over the average yield obtained from Rathindra KVK FLD Programme.
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A laboratory experiment was carried out at, Jaunpur (25°18’ N, 83°03’ S) to study the kinetics of N mineralization in sewage amended soils. Four different agricultural fields viz., A, B, C and D which has been receiving sewage for irrigation since last five or more years were selected for study. The three replicate of each treatment were incubated at room temperature (25°C) for 7 weeks. The soils were brought to field capacity by addition of distilled water. The subsamples (10g) were withdrawn from each sample after every week interval and extracted immediately with 100 ml of 2 M KC1 solution and N was determined. The fitness of the model for mineralization study was tested by least square method and the mineralization rate constant (K) and half-life (t1/2) were calculated from fitted model. It was observed that, the highest mineralized N (121.20 mg/kg) was observed in soil receiving sewage continuously while lowest in N mineralized 112.80 mg/kg was observed in soil receiving less amount of sewage. Estimated mineralization rate content ‘K’ in four soils was 0.44, 0.38, 0.10 and 0.43 and correlation coefficient were 0.99, 0.98, 0.99 and 0.99, respectively. The study revealed that, nitrogen mineralization was increased with increasing period of incubation with rapid increase during 2-4 weeks of incubation. First order model of kinetics was best suited for nitrogen mineralization in sewage amended soil under study.
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In the present investigation, plant growth promoting activities of mycopesticides (beneficial mycopesticides or biological control fungi) viz. Trichoderma, Paecilomyces, Beauveria and Metarhizium were assessed. Their efficacy for the growth enhancement of Groundnut was investigated through laboratory as well as by pot studies. Results of In vitro studies have shown their higher potential of P-solubilization these fungi. In the experiment, two native cultures and five fungal isolates (procured from MTCC) were used. P solubilization ability of the test mycopesticides have shown good solubilization zones by the PlA isolate on PKVK agar. Not only this, TvA and ThM has also shown good P solubilizing zone on PKVK medium - supplemented with rose bengal dye. In liquid culture medium, ThM showed the highest P solubilizing ability (309.33 µμg/ ml). HPLC analysis was carried out to determine the presence of organic acids in the culture supernatant of promising cultures. TvM showed presence of pyruvic acid, formic acid, orotic acid, citric acid and butyric acid. Efficacy of mycopesticides in pots study as PGP has revealed seed treatment as the best one, but recommended fertilizer was found significantly superior than all mycopesticides treatments. Amongst mycopesticides, Trichoderma spp. proved to be the best followed by Paecilomyces. Beauveria in most cases remained at par with Paecilomyces but was inferior to Trichoderma. Metarhizium was better than control but was inferior to other fungal treatments. Efforts clearly indicated that mycopesticides can significantly enhance groundnut growth and production as a plant growth promoting fungi (PGPF) proving their dual ability.
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Finger millets ((Eleusine coracana L. Gaertn) is one of the important small millets cultivated in India under subsistence farming in drylands. Though it is low demanding crop energy involvement is there in profitable raising of finger millet. Increase in energy use in agriculture production at a faster rate in India because of mechanization and enhancing chemical usage. To study the energy use in finger millet cultivation, a field trail was conducted at Bagusala Farm of M.S. Swaminathan School of Agriculture, Centurion University of Technology Management, Paralakhemundi, Odisha. The experiment was laid out in randomized complete block design (RCBD) with three replications and ten treatments. The treatment comprises of T1: control, T2: FYM @ 4 t ha-1,T3: FYM @ 8 t ha-1, T4: 100% RDF (40:20:20 kg ha-1 of N: P2O5: K2O), T5: 50% RDF + 4 t FYM, T6, 75% RDF + 2 t FYM, T7: FYM 4 t ha-1 + Azospirillum@ 5 kg ha-1, T8: FYM 8 t ha-1 + Azospirillum@ 5 kg ha-1, T9: 50% RDF + 4 t FYM + Azospirillum@ 5 kg ha-1 and T10: 75% RDF + 2 t FYM + Azospirillum@ 5 kg ha-1. The results revealed that all the energy parameters except energy productivity were significantly influenced by different treatments. The highest maximum energy input, gross energy output, net energy and energy intensity in term of economics were recorded maximum with application of 100% RDF and maximum energy use efficiency and energy productivity was noticed with application of FYM 8 t ha-1 + Azospirillum.
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Lathyrus sativus L. (Grasspea) is a protein rich pulse crop. Enough information about genetic diversity of Lathyrus germplasm is needed to improve this crop. Molecular characterization is one of the tools to identify the hidden genetic diversity. The present study was undertaken to reveal the genetic diversity in a set of 20 grasspea genotypes using RAPD (Randomly Amplified Polymorphic DNA) marker system. For the 15 primers, various efficiency parameters that include Polymorphism Information Content (PIC), Marker Index (MI), Resolving Power (RP) and Diversity Index (DI) were studied. Finally Principal coordinate analysis (PCoA) and dendrogram was perfomed to find out the genetic diversity among the germplasm. The screened RAPD markers will facilitate further studies in population genetics and utilization of this crop.
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Septoria is one of the major emerging pathogen of diverse plant families and has been reported from all over the world. It is the one of the major foliar disease which infects total shoot system and growing stage of plants (mostly Solanaceaceous crops). However, important fungal disease such as Septoria leaf spot caused by the fungal pathogen Septoria lycopersici is well known and not only restricted in Solanaceae. This fungal pathogen spreads rapidly and effected in any stage of development which ultimately causes quick defoliation and weakening of infecting part, rendering them unable to bear fruit tends to maturity. At the initial stage of infection symptoms appear as circular and angular lesions most commonly found on the older, lower leaves of the plant. The lesions contain pycnidia in the centre of spot in leaves to identify the pathogen of this region. This pycnidia are fruiting body of the fungus. When the lesions are more numerous often the leaves turn yellow, then brown shrivel up and eventually drooping of plant altogether, this fungal spores spread to healthy leaves by windblown, rain splashes, through irrigated water, mechanical transmission and through the activities of insects such as aphids, beetles etc. Septoria become more severe during warm, wet, humid periods and develops within four to five days from the date of transmission. In favorable time Septoria infects various cultivated and non cultivated crops but with the coming of unfavorable condition it retains in plant debris or body of secondary host round the season.
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The study on screening of bhendi accessions against fruit borer (Earias spp.) infestation was conducted by evaluating 55 numbers of IC entries with 6 different varieties/hybrids as a local standard check to assess their performance in naturally infested field conditions in augmented block design with three replications. The identified resources of accessions further subjected to the artificial screening to cross verify their reaction against the incidence of sucking insect pests, viz., leaf hopper (Amrasca biguttula biguttula) and whitefly (Bemisia tabaci). Out of 55 IC accessions screened, the entries viz., IC 27821-A, IC 42531, IC 22237-C, IC 42485-B, IC 43743, IC 43746-D, IC 45728 and IC 45804 were found to be the best tolerant sources for the management of fruit borer, Earias spp. with the cross resistance to leaf hopper and whitefly. The results on the artificial screening indicated that the identified tolerant sources were registered the minimum leaf hopper index (<3.5) and whitefly population (<2.0/leaf) when compared with the susceptible checks like Arka anamika, Parbhani kranti, Punjab 8 and Punjab padmini. The tolerance nature of the identified entries by recording < 30 per cent fruit damage with the trichome density of > 80/cm2 is in tune with the tolerant checks i.e., CO 4 and Arka abhay. Hence, the present investigation conclude that, these identified 8 accessions can be utilized in further breeding programmes to develop varieties/hybrids resistant to major insect pests of bhendi with good phenological traits.
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Plant growth promoting rhizobacteria (PGPR) are a heterogeneous group of bacteria that can be found in the rhizosphere, which can improve the extent or quality of plant growth directly or indirectly. However, screening strategies for selecting the best rhizobacteria strain for rhizosphere competence with other microbial species in the plant rhizosphere will require more comprehensive knowledge. In the present investigation nine different strains were tested for their PGPR properties by using RFLP analysis on 16S rRNA gene or amplified rDNA restriction analysis (ARDRA). 16 S rDNA amplification was done and restriction profiling was done using two endonucleases i.e. msp1 and taq1. Depending upon banding pattern of all the nine strains dendrogram was created using NTsys software. A clear-cut difference was seen in genetic diversity among the strains. Pseudomonas was found to be the most effective strain among all. Depending upon the outcome we can conclude that ARDRA can be an effective tool for analyzing the genetic diversity among different bacteria and PGPR starin e.g. Pseudomonas, Bacillus can be used as a potent biofertilizer.
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Banana Bunchy Top virus (BBTV) is a virus seriously affecting banana cultivation. Primers were designed for the amplification of coat protein gene for the diagnosis of BBTV in the commonly grown banana cultivars of Kerala, India, viz., Red Banana (AAA), Palayankodan (AAB), Dwarf Cavendish (AAA), Motta Poovan (AAB) and Ney Poovan (AB). PCR detection using these primers at an early stage can aid in disease free planting material production.
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The mealybug Paracoccus marginatus Williams and Granara de Willink completed 11generation in a year, 8 during March to October and 3 during November to February. The female and male nymphs completed development in 12.02 ± 4.44 to 17.92± 3.49 and 17.2 ± 3.00 to 21.25± 3.12 days respectively at during March to October, 21.59 ± 3.32 to 22.60 ± 4.49 and 22.81± 3.41 to 30.77 ± 2.38 days respectively during winter. The male and female ratio ranged from 1:1.20 to 1:3.41. Maximum oviposition period, minimum fecundity and maximum incubation period are 9 to 18, 108-154 and 9 days respectively in winter. Their mode of reproduction is entirely sexually. Life cycle is completed in 41 (maximum) and 27 (minimum) days during December- January and May respectively.
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Agroforestry is the management and integration of trees, crops and/or livestock on the same plot of land and can be an integral component of productive agriculture for higher economic returns. With the ever increasing population during past decades, the land resources for cultivation are shrinking. This situation calls for the adoption of ‘Agroforestry systems’ which is not only an efficient land management but also has promising role in maintaining environmental balance. In India, farmers’ are lacking in information on choosing the combination or compatibility of agricultural crops and tree species for different agroforestry systems under various agro-ecological zones. The benefits of successful agroforestry systems have an economic, environmental and social dimension. It is important to bring out a technology package on successful and viable agroforestry systems suitable for different agro-ecological zones for socioeconomic upliftment of rural farming community. The fast growing, multipurpose and indigenous trees, which could combine very well with annual crops and provide maximum economic returns in the short period of time is preferred under agroforestry systems. Neolamarkia cadamba is one such tree having fast growth in nature and highly suitable for agroforestry systems for higher economic returns. N. cadamba is a species having various end uses for pulp, ply and most preferred for pencil making. Though many phyto-chemicals and pharmacological compounds have been identified from this tree species, the species has not been domesticated so far under agroforestry systems. A detailed review on the status of this species including nursery techniques, agroforestry system establishment, etc. is presented in this paper.
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In the era of modern science and new technology, mankind is adopting new and novel approaches to deal with the problems. The high population density and urbanization has changed our environment to a polluted one. Its not easy to deal with this problem with complex and costly equipment. Bioindicators are playing a major role in reducing the pollution and to check it timely without any environmental hazard. Bioindicators are the living organism which facilitate in reduction of the environmental pollution. They directly or indirectly determine the amount of pollutants and contaminants present in our ecosystem. They rapidly react to their surrounding environment and give us early warning. These can be used for indexing the health of the ecosystem as well as balancing the ecosystem without any disturbance in food chain. Biomonitoring is one of the promising and cost-effective methods as compared to other techniques. More researches are highly needed to explore the hidden characteristics and many more new species which will help us to build a better and safe environment.
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Fluorescent Pseudomonas sp. is emerging as largest and potentially most promising group of PGPR (plant growth promoting rhizobacteria) that are involved in plant growth enhancement. Plant growth regulators viz., auxins, cytokinins and gibberellins help in plant growth and development. In present study, fluorescent Pseudomonas strains isolated from rhizospheric soil from temperate fruit zone of Himachal Pradesh were investigated for plant growth regulator production i.e. auxins, gibberellins and cytokinins in nutrient broth. All the strains tested produced plant growth regulators in concentrations auxins (1.83-21μg/ml), gibberellins (116.1-485.8μg/ml) and cytokinins (45.4-295.4μg/ml). Two strains (An-1-kul and An-13-kul) were selected on the basis of over all PGPR activities for production of growth regulators. Molecular characterization of best selected Pseudomonas strains were done by 16S-rRNA technique. Plant growth regulators produced by best isolates were further studied to observe their effect on growth of callus formation, shoot formation of broccoli and root elongation of cabbage
Abstract :
Sweet corn is becoming very popular in different parts of the country. The present study was conducted during 2019-20 in two blocks of Malkangiri district comprising 120 numbers of farmers from four adopted villages of Krishi Vigyan Kendra, Malkangiri in South Eastern Ghat Zone of Odisha. In previous years (2017-18 and 2018-19) KVK, Malkangiri has conducted FLD programmes on sweet corn cultivation by providing the critical inputs with support of production technologies. Conducting front line demonstrations on farmer’s field help to identify potential of the sweet corn in specific area as well as it helps in improving the economic and social status of the farmers. The ex-post facto research design was used for the study. Majority of the respondents (83.3%) were found to possess medium to high level of adoption behavior regarding different recommended package and practices about sweet corn cultivation. It means that the respondents were more energetic, progressive and adopting the sweet corn as cash crop keeping the market demand in mind and practicing the technologies for better production and higher net return. The study revealed that socio- economic variable like education, extension contact, communication material used and holding size were the pertinent variables exhibiting influence towards adoption behaviour of the respondents. Different extension agencies like KVK, ATMA, NGO’s of the district need to provide more technical support to the farmers for increase in area and production of sweet corn.
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The antioxidant activity of extracts of different polarity from seeds of Local variety of Coriandrum sativum was assessed via both in vitro and ex vivo models. Results indicate that hexane extract of coriander exhibited no appreciable effects at either of the concentrations in all the three in vitro free radical scavenging models i.e. hydroxyl radical, superoxide radical and nitric oxide radical. Instead, it showed pro-oxidant activity at higher concentrations. Whereas methanol: hexane extracts of coriander were found to be ineffective in quenching hydroxyl radical but revealed only moderate activity in quenching superoxide radical (EC50=711.81 μg/ml) and nitric oxide radical (EC50=569.02 μg/ml). Only methanolic extract of Local variety offered strong antioxidant activity in a concentration-dependent manner for the same three free radicals with EC50 of 18.33 µg/ml, 553.50 µg/ml and 179.53 µg/ml respectively. Even in vitro linoleic acid peroxidation model proved methanolic extract of coriander (80% inhibition till 48 h) to be far better than standard antioxidant ascorbic acid (70% inhibition till 12 h). EC50 and SC50 for ex vivo linoleic acid peroxidation of rat liver homogenate and erythrocytes were recorded as 383.10 µg/ml and 166.78 µg/ml respectively. The methanolic extract of Local variety was further evaluated for its protective effect on osmotic fragility and antioxidant enzymes of erythrocytes at various time intervals (24-96 h). The decrease in% hemolysis and protection of activities of antioxidant enzymes even for 96 h of incubation in test groups supplemented with coriander proved indubitably, the effectiveness of methanolic coriander extract in alleviating protective mechanisms.
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A field experiment was conducted during Rabi seasons of 2009-10 and 2010-11 at the Agricultural Research Farm, Banaras Hindu University, Varanasi (U.P.) to study the effect of fertilizer levels, FYM and bioinoculants and their interaction effect on soil properties. The treatments consisted four levels of recommended dose of fertilizer (0, 50, 75 and 100% NPK), two levels of farmyard manure (0, 10 t ha-1) and four inoculation [no inoculation, PGPR (Azotobactor chroococum W5 + Azospirillum brasilence Cd+ Pseudomonas fluorescens BHU PSB06 + Bacillus megaterium BHU PSB14), VAM (vesicular arbuscular mycorrhiza) and PGPR+VAM]. The experiment was replicated thrice in a split plot design. The results revealed that the application of different treatments did not affect the pH, EC and bulk density decreased, water holding capacity, organic carbon and CEC significantly improved after harvest of wheat. The dehydrogenase, phosphatase enzyme activity and soil microbial biomass carbon (SMBC) and available N, P and K and microbial population of soil after the harvest of wheat were improved significantly due to the integration of inorganic fertilizers with FYM and bioinoculants. Positive impact of biological and organic manure application have been recorded with an additional advantage of the reduction of chemical fertilizer use.
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Root and stem rot of cowpea caused by Rhizoctonia solani is one of the most important problems for farmers among the coastal regions of Odisha. Keeping this in view, the behavioural study of the pathogen was done by studying its growth pattern in different culture media and host medium. Among five different media, Potato dextrose agar (90.00 mm) was found to support the maximum radial growth followed by Sabouraud’s dextrose agar medium (87.90 mm), Potato dextrose rose Bengal agar (82.40 mm), Oat meal agar (76.60 mm) and Malt extract agar (70.98 mm). In study of meteorological parameters in relation to disease development the maximum incidence was recorded in October at a maximum temperature of 32.7oC, minimum temperature 22.9 oC accompanied by night RH 92% and day RH 64%. However, weather parameters under study did not yield any significant effect on disease development. However, the soil factors like sandy loam textured soil and acidic to neutral PH contributed towards this soil borne disease. Among host range studies, Rhizoctonia solani isolated from cowpea could infect rice (Oryza sativa), maize (Zea mays), tomato (Solanum lycopersicum), chilli (Capsicum annum), brinjal (Solanum melongena), field pea (Pisum sativum), cucumber (Cucumissataivus), bengalgram (Cicer arietinum), arhar (Cajanus cajan), cotton (Gossypium hirsutum), and groundnut (Arachis hypogea) in addition to its own host.
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In the year 2016-17 Cluster front line demonstrations (CFLDs) were organised in 40 Ha, in 2017-18 in 50 Ha and in 2018-19 it was done in 50 hectares. All the critical inputs were provided to the farmers free of cost. In Andhra Pradesh, the average yield of black gram was 8.0 qt./Ha and average yield of Krishna district was 10.3 qt/Ha, a potential pulse producing district in the state and the potential yield is 15 qt/Ha. Extension activities viz., training programmes, method demonstrations, field visits and group discussion were organised to create awareness on the latest technologies and skill component involved. The average data for all three years indicate that in the demonstrated plots the average yield was 14.3 qt/ha compared to 12.8 qt/ha in the farmers practice fields. The cost of cultivation was also reduced in the demonstrated plots (` 23110.00 per hectare) compared to farmers practice pots (` 28900) indicating a reduction, resulted in improving the net income of the farmers in the demonstration plots. There is a increase in the net income in demonstrated plots to the tune of ` 11965.00 per hectare and the cost benefit ratio was also greatly improved from 2 to 3 in the demonstrated plots.
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Crude oil spillage is a regular phenomenon in the oil drilling sites and due to raining and flooding the spilled oil spread to the nearby cultivated field causing soil pollution and considerable reduction in the crop yield. Therefore, present investigation aimed to study the effect of crude oil spillage on chemical properties of soils of two major oil fields in Assam, India viz. MFN oil field, Moran and Kathalguri, HYR, Duliajan oil field. Five soil samples were collected in triplicates at an interval of 50 m from three directions (E, W& S) from the spilled areas upto 200 m horizontally and one sample from each direction was collected from adjacent unpolluted areas i.e. beyond 200 m as control. Standard analytical procedures were followed to determine soil pH, EC, organic carbon, total petroleum hydrocarbon, available nutrients, and exchangeable elements. Results revealed pH of the soils remarkably dropped towards spillage point making the soil strongly acidic in nature whereas the organic carbon content increased near the point of spillage in both oil fields. The total petroleum hydrocarbon (TPH) was recorded maximum at spillage point in both Moran and Duliajan oil fields and was negligible beyond 200m. The available N and P2O5 were low near the spillage point and substantially increased with distance. Conversely, available K2O, exchangeable Ca2+ and Mg2+ significantly increased near the spilled point.
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This study investigated the effect of adding as a complementary drying aid of maltodextrin (MD) on spray drying of dahi powder. Dahi powders were prepared by curd adding with maltodextrin (MD) drying aid at 5%, 7.5%, 10, and 12.5% level before spray drying by maintaining with outlet air temperature and blower speed being 70oC and 2200 rpm, respectively. The survival rate of lactobacilli during spray drying of dahi powder were investigated such as 0.62% shows maximum at 7.5% maltodextrin (MD) drying aid. Tests were conducted to evaluate the powder properties relevant to physical, chemical and reconstituted properties of the spry dried dahi powder. Results showed addition of 7.5% maltodextrin (MD) aid could significantly increases the product yield for the spry drying process of dahi powder and the consumer acceptable also. At the same time values of lightness, wet ability, water solubility index, viscosity, bulk density, dispersibility and total solids increases with increasing the maltodextrin (MD) aid. Moisture content, acidity and hygroscopicity decreases with increasing maltodextrin (MD) aid in spry dried dahi powder but the values of pH and acidity remain constant during spry drying process by increasing maltodextrin (MD) aid. The flavour of reconstituted dahi samples improves as the maltodextrin content increases may be due to more acetaldehyde retention in the samples. Addition of maltodextrin (MD) aid also improves the sensory properties and overall acceptability of reconstituted spry dried dahi powder.
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The mode of inheritance of resistance to Xanthomonas oryzae pv. oryzae strain BXO1 and BX043 wild type of bacterial leaf blight disease of rice was studied in six generations of crosses of cultivars HUR 4-3 into PB-1460. The resistance cultivars PB-1460 showed 4.54% disease severity, while susceptible cultivar HUR 4-3 showed 53.01% disease severity against Xanthomonas oryzae pv. oryzae. The area under the disease progress curve (AUDPC) of resistance cultivar was 65.61 which are significantly less than the susceptible cultivar 649.90. The F1 plants were observed to be resistant with an average disease severity 08.87% and AUDPC 110.26. The F2 populations were classified in to four distinct classes on their genotypic ratio of 9:3:3:1 and phenotypically these populations were grouped in two distinct classes resistant and susceptible with their ratio of 13:3, respectively. However, B1 and B2 populations were classified in to two distinct classes as resistant (Resistant/ moderately resistant) and susceptible (moderately susceptible/ susceptible) in the ratio of genotypic 1:1:1:1 and 1:1 and phenotypically 1:1 and 1:0, respectively. The disease resistance occurs in the population is mainly due to cumulative effects of dominant and recessive two resistant genes i.e., Xa21 and xa13. Chi-square analysis of the population was confirm the inheritance of resistance with their value are 1.24 and 0.66 indicating that the observed data are in line with expected ratio and follow Mendelian pattern of inheritance of resistance to bacterial leaf blight in B1 and B2 generations and modification in the Mendelian ratio of inheritance in the F2 populations, it showed inhibitory gene action i.e., 13:3 that means dominant gene have cumulative effect of recessive gene.
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The study was conducted to assess the performance of tubular maize sheller under Frontline Demonstration programme during 2016-2019 under Kohima district of Nagaland. Maize sheller developed by CIAE was compared to farmers practice of bare hand maize shelling using the finger tips and thumb pressing. The demonstrated result revealed that the performance level of tubular maize sheller (31.36 kg/hr) was double that of farmers practice (13.11kg/hr) in a given time which had increased the shelling capacity by 140%. Shelling efficiency under demonstration remain as high as 99.69%. The average cost of operation per quintal in tubular maize sheller was found to be ` 171.58 over farmers practice (` 423.70) which saved the operation cost of farmers by 60 %. The farmers attitude towards the demonstrated tool was also noted and it was observed that 100% were in agreement that no special training was required for handling the tool, it avoided injury to fingers during use, reduced drudgery and that the tool to be women friendly. It also revealed that majority were in agreement that it saves time and energy (98.66), avoids irritation of eyes, nose mouth during shelling (98%) followed by convenient to use and operate (97.33%). It was also suggested that 4% percent of the farmers were in agreement to the statement that the tool requires modification.
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Profenofos is a broad spectrum foliar insecticide and acaricide with contact and systemic action, widely used on tomato in India for the management of sap sucking insects and mites. Profenofos is not registered for use in India on tomato, and hence Maximum Residue Limits are not available as per Food Safety and Standards Authority of India. However, use of profenofos in poly house and open fields is very common, and hence profenofos residues are found in market samples. A research project was taken to study dissipation pattern of profenophos 50% EC in both open fields and poly houses, when applied twice @ 500 g a.i. ha-1, first spray at fruit initiation followed by second spray at 10 days interval as per the farmers practice. Profenofos residues were quantified through regular sampling till the residues are below determination level (BDL) of 0.05 mg kg-1 following the validated QuEChERS method. The qualitative and quantitative analysis of profenofos was performed on GC-FPD and GC-MSMS (TQD). Initial deposits of 3.25 mg kg-1 were detected in tomato samples collected from poly house, which dissipated to BDL by 15th day with half-life of 2.43 days. In open fields, deposits of 1.51 mg kg-1 dissipated to BDL by 7th day with half-life of 1.55 days, indicates that dissipation is slow in poly house compared to open fields due to various factors, and in both situations initial deposits are lower than the MRL (10 mg kg-1) of Codex Alimentarius Commission hence a pre-harvest interval of 1 day is recommended. MRL of 7 mg kg-1 in poly house tomato and 3 mg kg-1 in open field tomato is recommended based on the OECD (Organization for Economic Co-operation and Development) calculator and chronic hazard exposure assessment taking into consideration of average body weight, national per capita tomato consumption and acceptable daily intake (ADI) of profenofos. Among various decontamination methods tested, veggy wash found to be very effective in removing profenofos residues to an extent of 75.84% which can be recommended as risk mitigation method for food safety, followed by 4% acetic acid solution (71.22%) and tap water wash was least effective (37.60%) in removing profenofos residues from tomato.
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An understanding of soil boron occurring in various forms and their release behaviour in soils needs to be examined extensively in major soil series. A laboratory incubation study was conducted to study the release pattern of boron fractions under maize growing sandy loam B deficit soils with different levels of B as 0, 0.5, 1.0, 1.5 and 2.0 kg ha-1 were replicated thrice in a completely randomized design. The soils were incubated at field capacity for a month (30 days) period and destructive sampling was done at intervals viz., 0, 7, 15, 21 and 30 days after incubation. B fractions viz., specifically adsorbed, oxide bound, organically bound and residual B in soil were determined. The results revealed that with applied boron, the non-specifically adsorbed B fraction was higher next to residual form when compared to other forms of boron. Applied B converted to soluble form and attained peak values at 21 days after incubation in the treatment with application of 2 kg B ha-1 and thereafter a decrease was noted. Irrespective of location, the plant available form of B includes non- specifically adsorbed B fraction which was considerably higher (1.03 and 1.0 mg kg-1 mg kg-1) on 21st day after incubation (contributed towards 0.02 and 0.01% of total B) which coincides with the high demand for B by maize crop during vegetative phase. The data’s also revealed that the contribution of residual boron to total boron was the highest among the B fractions.
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Field experiments were conducted during two consecutive years of 2010-11 and 2011-12 at Agronomy Research Farm of NDUA&T, Faizabad (UP.) India to study the response of land configurations, IW/CPE ratios and integrated supply systems on growth function, yield and nutrient study of french bean (Phaseolus vulgaris L.) under indo-gangetic eastern plains zone of Uttar Pradesh. Significant increase was observed for plant height, number of branches and dry matter accumulation per plant at 60 and 90 days after sowing and at harvest under 1.0 IW/CPE moisture regime nourished with 75% RDF through chemical fertilizers + 25% N through biocompost at raised bed configuration. Higher growth attributes resulted maximum yield and yield attributes of French bean with sowing at raised beds, application of 75% RDF+25% N through biocompost and IW/CPE ratio of 1.0 as compared to rest of the treatments. Increasing moisture regimes decreased the water use efficiency and it was highest under sowing on raised beds, moisture regime at 0.6 IW/CPE ratio and 75 % RDF through chemical fertilizers + 25 % N through biocompost nutrient supply system. Higher yields of French bean was obtained with treatment combinations of sowing on raised beds, moisture regime at 1.0 IW/CPE ratio and 75 % RDF through chemical fertilizers + 25 % N through biocompost and it was most remunerative and sustainable under Indo-gangetic plains of UP.
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The present investigation was carried out to different organic substrate for develop simple, cheap and effective method to suitable mass multiplication of biocontrol agent Pseudomonas fluorescens. Different organic substrates were treated by sterilizated method such as hot water, steam and chemical treatment at two incubation temperature separately. 200 g of each substrate was filled in polythene bag and 48 h KMB slant culture of P. fluorescens cell suspension of concentration of 108 cfu/ml was pipetted into the each bag. The observations were recorded on 7th, 14th, 21st, 28th, and 35 th DAI. One gram of substrate from each bag was used for assessment of difference in growth of P. fluorescens and data regarding number of colony forming units (cfu) of bioagent per gram of each substrate. After 35 DAI, found that significantly higher population in FYM followed by vermi compost and gram straw at both temperature (20-25°C) and (35-40°C) irrespective of three sterilization methods taken in the study and also observed that overall growth of isolate of P. fluorescens was maximum in steam followed by hot water and least in chemical method of sterilization. As far as method of sterilization was concerned, the trend was similar as in cooler and room temperature. In all, cooler temperature (20-25°C) supported the mass multiplication over the room temperature (35-40°C).
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The present load of sulphur (161.1 Eq ha-1 yr-1), nitrogen(49.9 Eq ha-1 yr-1) and ammonium (176.8 Eq ha-1 yr-1) were calculated from wet and dry deposition from Kanpur region consisting of seven sampling sites located at IIT, Vikas Nagar, Panki, Arya Nagar, Rama Devi, Gola Ghat and Phoolbagh for the year 2014-2016. The values for critical load of sulphur and nitrogen for soil with respect to Barley (Hordeum vulgare) and Eucalyptus (Eucalyptus) were calculated. The methodology involved the Steady State Mass Balance (SSMB) method. The values of actual acidity calculated were also compared with the RAINS-Asia model and was found to be lower for this area.
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Leptospirosis, a worldwide anthropozoonosis infection with multisystemic involvement, is emerging in North India. These days, focus is to develop recombinant outer membrane protein-based diagnostic tests. In this study, three genes lipL41 (1088 bp), loa22 (608bp) and lipL21 (581bp) of Leptospira interrogans were cloned and sequenced. Multiple sequence alignment and phylogenetic analysis revealed that loa22 and lipL21gene sequences of L. interrogans serovars Grippotyphosa and Canicola respectively were conserved in nature but lipL41 gene sequence of L. interrogans serovars Grippotyphosa showed variation in nucleotide sequence which contributes to serovar evolution within species. For protein expression truncated lipL41 (1028 bp), loa22 (548bp) and lipL21 (472bp) genes were amplified, cloned and expressed in prokaryotic expression system and His-tagged ~45kDa (lipL41 gene), ~28kDa (loa22 gene) and ~17kDa (lipL21 gene) proteins were purified by nickel-nitriloacetic acid (Ni-NTA) affinity chromatography. Purified proteins were confirmed by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) and western blotting. For immunological characterization, total four doses of recombinant proteins were injected subcutaneously into Swiss-albino mice at 50µg quantity along with Freund’s adjuvant and after 21 days immunogenicity of expressed proteins was tested by blotting using mice raised serum.
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Rice the most important staple grain with second highest worldwide production has offered a great potential for biotechnological advances, categorized broadly in areas like transgenics, structural and functional genomics and marker-assisted breeding to provide with vital breakthroughs to achieve improvements in both quality and quantity in a sustainable manner. The ever increasing demand, increasing anthropogenic activities has posed a challenge to boost the production of rice. To cope of with this alarming situation, the advent of genetic engineering has been utilized to remove natural barriers through gene transfer/exchange. Since then, sequences from various sources like bacteria, viruses and eukaryotic systems were used to develop transgenic crop varieties. Gene transfer techniques like direct DNA transfer through particle bombardment, polyethylene glycol or electroporation and indirectly mediated by Agrobacterium are increasingly applied. Unfortunately, DNA delivered by direct methods is often integrated into the genome as rearranged or multiple copies, presumably as a result of which the expression pattern of the gene of interest is often aberrant or unstable. In contrast to this, Agrobacterium-mediated transformation system offers higher transformation efficiency with discrete, unrearranged segments of DNA being inserted at fairly low copy number. Achievements, to date, through Agrobacterium-mediated transfer have surpassed all previous expectations and with the development of this successful technique for genetic improvement the future is even more promising.
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Global climate change predictions suggest new scenarios with large arid areas and extreme climatologic events. Thus, it is essential to understand how plants respond to different abiotic stresses in order to improve crop performance. A pot experiment was carried in a net house in four replicates of normal (no waterlogging) and waterlogging stress. Excess soil moisture stress was imposed at 21 days after sowing by placing the pots of each genotype in water-filled troughs for 7 and 14 days. The data revealed that the genotypes ICPB 2039 and KPBR 80-2-1 were showed significant superiority during 7 and 14 days waterlogging stress and during recovery for survival percentage. However, during 7 days waterlogging stress genotype KPBR 80-2-1 was superior for plant height and chlorophyll content, ICPH 2431 for root length, ICPL 20128 for leaf area, JBP 110-B for relative water content and JKM 7 for total dry matter production. When the waterlogging duration exceeded 14 days the genotypes showed the highest plant height and relative water content by ICPL 87051, root length and total dry matter production by JKM 7, leaf area by ICPH 2431 and chlorophyll content by C 11 under waterlogged conditions.
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A field experiment was conducted on hybrid rice during the kharif season of 2011 at the farm of Palli Siksha Bhavana (Institute of Agriculture), Visva Bharati, Sriniketan, West Bengal to study the effect of nitrogen and homo-brassionlide on growth and productivity of hybrid rice. The experiment was laid out in FRBD with five levels of nitrogen viz. N0, N60, N120, N180 and 240 kg ha-1 and three levels spraying of homo-brassionlide viz. active tillering (AT), active tillering +panicle initiation (PI) and active tillering +panicle initiation + flowering (FL). The results showed that hybrid rice responded well to fertilizer application. Application of 180 kg N improved all the growth attributes such as plant height, number of tillers m-2 and dry matter accumulation and increased the yield attributes like number of panicles m-2, panicle length, number of grains panicle-1, percentage of filled grain and test weight that ultimately led to high crop productivity. The spray of homo-brassinolide has a significant effect on plant height, number of tillers m-2 and dry matter accumulation and increased the yield attributes like number of panicles m-2, panicle length, number of grains panicle-1, percentage of filled grain and test weight that ultimately led to high crop productivity. Among the spraying, thrice spraying of homo-brassinolide i.e. at AT+PI + FL recorded significantly higher yield parameters and yield as compared to AT, MT+PI. The study advocated cultivating hybrid rice 180 kg N with for its high productivity.
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To compare the effect of 6-benzylaminopurine (BAP) and thidiazuron (TDZ) on morphological abnormal plants or per-cent variant plantlets during secondary hardening period. Shoot tips of Musa spp. were cultured on MS medium supplemented with different concentrations (2.0 and 5.0 mg/L) of BAP and (0.2 and 0.3 mg/L) of TDZ and NAA 0.2 mg/L. Wherever, TDZ is present in the medium some morphological dwarf plants were observed. The maximum plant height (16.17 cm) and number of leaves (4.20) was in T2. Where, the maximum shoot diameter (4.97 mm), number of primary roots (4.53) and length of longest root (11.17 cm) was in T1. TDZ at 0.2 mg/L it increases the morphological abnormal plants like dwarf plants (20.00%). In conclusion BAP at 5.0 mg/L, TDZ at 0.2 mg/L and NAA at 0.2 mg/L and BAP at 2.0 mg/L, TDZ at 0.2 mg/L and NAA at 0.2 mg/L were assumed to be the most suitable for commercial micropropagation system with low frequency of abnormal shoot production for local banana cultivars.
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Field study was conducted during the kharif, 2011 at Agronomy Research Farm, Central Research Station, Orissa University of Agriculture and Technology, Bhubaneswar to assess the nutrient concentration and uptake by weeds and crops under different crop establishment methods. Weedy check recorded highest nutrient content of weeds. Weedy check plot recorded the maximum N, P and K content of 0.83, 0.13 and 1.3% respectively. The removal of N,P and K (82.45,13.42 and 127.74 kg ha-1 ) was the highest in the same treatment and the lowest nutrient uptake by conoweeding N,P and K was 0.73 , 0.13 and 1.25% and removal of N,P and K (kg ha-1) was 17.34, 3.11 and 29.44 respectively. The nutrient content of grain and straw of rice in conoweeding was maximum recording N, P and K of grain are 1.33, 0.37 and 1.26% respectively. The corresponding values for straw were 0.44, 0.10 and 1.82% respectively. The weedy check recorded the lower values of N, P and K content as compared with weed control treatments. Nutrient uptake of rice crop showed that maximum uptake of nutrient was recorded in SRI (62.72 and 25.13 kg ha-1 of N, 17.06 and 5.26 kg ha-1 of P and 13.04 and 101.11 kg h-1a of K in grain and straw respectively) it was followed by transplanting, drum seeding and line sowing. Minimum depletion of 47.34 kg of N, 11.18 kg ha-1 of P and 67.54 kg ha-1 of K was observed in weedy check taking the total values of grain and straw. The highest benefit: cost ratio were recorded in the SRI supplemented with conoweeder.
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The study was conducted on genetic variability, heritability, genetic advance and correlation coefficient for vegetative and floral characters of gerbera during April 2011 to March 2012. Nine varieties namely, Rionegro, Manizales, Galileo, Marinila, Palmira, Figaro, Teresa, Pia and Tecala were selected for their evaluation. The range of variation was high for a number of flowers per sq. m per year followed by number of ray florets and plant spread. Highest phenotypic and genotypic variances were observed for a number of flowers per sq. m per year. The estimates of phenotypic coefficient of variation were higher than genotypic coefficient of variation for all the traits. Maximum phenotypic coefficient of variation and heritability was observed for vase life. Genotypic coefficient of variance showed a range of variation from 2.58 to 32.01 for diameter of neck and vase life, respectively. However, the maximum genetic advance was observed in the number of flowers per sq. m per year. The high heritability was associated with high genetic advance percentage of the mean for vase life indicating the possible role of additive gene action. The magnitude of genotypic correlation was higher than their corresponding phenotypic correlation for most of the traits, indicating a strong inherent linkage between various traits under study. At genotypic level, number of leaves per plant exhibited positive significant correlation with diameter of flower and number of flowers per sq. m per year but highly significant and positive correlation with a number of flowers per sq. m per year at phenotypic level.
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Brucellosis is a worldwide contagious and zoonotic bacterial infectious disease caused by Brucella. The aim of present study was therefore to establish the seroprevalence of brucellosis in cattle in North India and to know the exact causal species of Brucella organism. A total of 160 serum samples were analyzed. The seroprevalence of Brucellosis was 1.88 per cent and 3.13 per cent by Rose Bengal Plate Test (RBPT) and Standard Tube Agglutination Test (STAT), respectively. Seroprevalence was zero by both RBPT and STAT in organized dairy farm while in unorganized sector, 2.16 and 3.65 per cent by RBPT and STAT, respectively. Age-wise seroprevalence was higher in 4.5 to 6 years old cows than younger. Area-wise seroprevalence was higher in Satwari block of study area. On screening of 10 milk samples from serological positive and doubtful cows by milk ring test, two sample were positive (20%). On isolation of from samples, only one sample yielded Brucella abortus. The results showed that younger cattle were less infected than adults. Prevalence of Brucellosis was higher in Satwari block of Jammu province compared to other study area. The presence of Brucellosis in bovine may pose a significant economic loss to the farmer and a public health hazard to the general population.
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A field experiment was conducted in two consecutive summer seasons of 2008 and 2009 at the Institute of Agriculture, Visva-Bharati, Sriniketan, West Bengal to screen out the weed competitive Green-gram cultivars. Experimental plots were infested with grassy, broadleaved and sedge weeds. Digitaria sanguinalis among grasses, Croton bonplandianum among broad leaved and Cyperus rotundus among sedges were most predominant throughout crop season. Losses in seed yield of green-gram due to weed infestation ranged from 7 to 37%. Among the cultivars, the plots of ‘WBM 34-1-1’, ‘WBM 04-5’ and ‘PDM 54’ registered lower number as well as dry weight of grasses, broadleaved, sedges and total weeds at 45 days after sowing (DAS) under both weedy and one hand weeding situations. These cultivars also recorded higher values of yield attributes and seed yields. Yield components viz. number of pods/plant, seeds/pod, test weight as well as seed yield were significantly reduced in weedy situation, compared with one hand weeding at 30 DAS in all the cultivars excepting ‘PDM 54’ and ‘WBM 04-5’, where no significant reduction due to weed competition was recorded, indicating higher weed competitive abilities of both the cultivars. The cultivars ‘WBM 34-1-1’, ‘WBM 04-5’ and ‘PDM 54’ appeared to be promising towards suppressing weeds and producing higher seed yields in lateritic soil of West Bengal.
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The silkworm Bombyx mori is essentially monophagous and survives solely on the mulberry leaves (Morus spp.). Mulberry is a highly heterozygous and vegetatively propagated species that is prone to prolonged juvenile period. Since the quality of silk production is directly proportional to the quality of leaves used as the exclusive feed for these worms, leaf quality is of utmost importance in sericulture. The quality of leaves is reported to depend upon age of leaf on the shoot, succulency and nutrient content. The nutrient contents of mulberry leaves are known to vary according to the season, variety, age, type of harvesting. In addition, feeding with mixed varieties leaves and feeding frequencies are also known to influence the health of the silk worms. The present review paper discusses in details about the effects of different types of feeding on the commercial characteristics of mulberry silkworm (Bombyx mori L) in West Bengal.
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Tomato is one of the most important vegetable crops in India. In vitro tissue culture of tomato could serve as an important means for its improvement through genetic transformation. To improve the regeneration capacity of tomato, the effect on plant regeneration of donor plant type, basal medium, and plant growth regulators were evaluated using explants derived from the cotyledon, hypocotyl, leaf and petioles. Cotyledon and hypocotyl excised from 10-15 days old and leaf and petiole excised from 25-30 days were optimal explants. Explants were cultured on MS (Murashige and Skoog) basal medium supplemented with different concentrations and combinations of BA-IAA, BA-NAA, Kn-IAA and Kn-NAA. The highest regeneration efficiency was obtained on MS basal medium containing combinations of BA-IAA and Kn-IAA. The best response in terms of the percentage of shoot regeneration (77%) was obtained from petiole explant cultured on MS basal medium supplemented with 1.0 mg/l Kn + 1.0 mg/l IAA. Successful rooting was achieved by placing the shoots onto MS basal medium supplemented with 0.20 mg/l NAA. The combination of sand: soil (1:1) was the best for plant acclimatization as 90% of the plants survived and became established.
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Salacia fruticosa Heyne ex Lawson, one of the red listed medicinal plants belonging to the family Celastraceae which is categorised as threatened by IUCN due to unsustainable and indiscriminate harvesting for commercial purposes. Traditional propagation techniques cannot cater to large scale planting stock production of this valuable species due to poor fruit set and seed germination hence the vegetative propagation has to be resorted to meet the planting stock requirement. Present investigation was carried out at Kerala Forest Research Institute to standardize the vegetative propagation protocol of S. fruticosa through stem cuttings with growth regulators in different season. Semi-hard wood and hardwood cuttings were collected in three seasons (January-April, May-August and September- December) and treated with Indole Butyric Acid and Naphthalene Acetic Acid in different concentrations. Rooting response was measured after two weeks in the mist chamber. The adventitious rhizogenesis of S. fruticosa stem cuttings was influenced by type of cutting, season of collection, type of growth regulator and its concentration. Semi hardwood leafy cuttings, treated with 3000 mg/l of IBA during January – April was the successful method for vegetative propagation (80% rooting) to produce the planting stock. Significant increase in number of new leaves, root length also recorded for the same treatment. Hence, we recommend the same treatment combination for the large scale planting production in S. Fruticosa.
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Maize (Zea mays L.), the queen of cereals, is planted with wide spacing and so it offers the scope of intercropping. Considering the benefits of cereal-legume association, an experiment on maize-legume intercropping system was conducted during summer season of 2018 at Bagusala Farm of M. S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Gajapati district, Odisha. The experiment was laid out in randomized complete block design and the treatments were comprised of ten cropping systems, namely, T1: sole maize, T2: sole green gram (Vigna radiata L.), T3: sole groundnut (Arachis hypogaea L.), T4: sole black gram (Vigna mungo L.), T5: maize + greengram (2:1), T6: maize + groundnut (2:1), T7: maize + blackgram (2:1), T8: maize + greengram (2:2), T9: maize + groundnut (2:2) and T10 maize +black gram (2:2). Paired row sowing of hybrid maize was done with a spacing of 80 cm/30 cm × 25 cm in sole maize. Pure stand of legumes i.e. green gram, groundnut and black gram were sown with 30 cm × 10 cm spacing. As per the treatments, single and double row of intercrops were taken in between two pairs of maize. The result indicated that intercropped legumes improved the yield components of maize and offered some bonus yield. The maximum maize grain yield (5669 kgha-1) was noted with sole maize, however, maize equivalent yield of 7609kg ha-1 was recorded with maize + groundnut (2:2) and it was followed by maize + black gram with 2:2 ratio (6902 kg ha-1). In expression of the competition functions, maize + groundnut (2:2) recorded the highest values of area time equivalent ratio (1.70), relative yield total (1.47) and monetary advantage (` 42002 kg ha-1). The intercropping combination of maize + groundnut (2:2) recorded the highest net return (` 47954 ha-1), with a benefit-cost ratio of 1.00, but by the treatment maize + black gram with 2:2 ratio registered greater B:C ratio (1.11) with net return of ` 45499 ha-1.
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This research study was mainly done on the process of various types of value-added products prepared from maize and the cost and return of value-added products made from maize by street vendors and established vendors. To find out the constraints in marketing of value added products of maize and suggest suitable measures to overcome them. The study was conducted in Raipur city of Chhattisgarh state. In which the Raipur city different sample was collect in randomly way. Out of the more than 50 established vendors, total 10 vendors were selected. Street vendors only select the corn related food vendors and collect the sample data from 20 street food vendors was selected out of all vendors. The primary data was collected through pre-tested structured interview schedule. Simple average and percentage methods was used for analyzing the data.
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The ambient air quality monitoring data of Jalna City, India for SO2, NOx, PM10 and TSPM at two sites (residential and industrial) and over a one year period are presented within this paper. The diurnal and seasonal variation in concentrations of SO2, NOx, PM10 and TSPM has been analyzed. It has been observed that all pollutants showed higher concentration during daytime as compared to night. The seasonal cycle at both the sites generally showed for SO2, PM10 and TSPM higher concentrations during the winter season. At both the sites no distinct seasonal cycle could be detected for NOx. The annual mean concentrations recorded for SO2, NOx, PM10 and TSPM were 4.93µg/m3, 26.68µg/m3, 61.85µg/m3 and 166.11µg/m3 at residential site and 6.44µg/m3, 64.64µg/m3, 126.82µg/m3 and 306.27µg/m3 at industrial site. The annual mean concentrations of all four pollutants measured at residential site were found within the permissible limits of Indian National Ambient Air Quality Standards (NAAQS) whereas annual PM10 concentration at residential and industrial site violated the prescribed standard.
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The field experiment was carreied out at Research Farm, Bagusala, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management during summer, 2018. The soil was sandy loam in texture, slightly acidic in reaction ( pH 6.8 ) and low in available N (158.83 kg /ha) and P2O5 (10.82 kg /ha) and medium in available K2O (147.67 kg/ha). The randomized complete block design was adopted with three replications for testing 8 treatments. They were consisted of 100% recommended dose of fertilizer ( DF) @ 120-60-60 kg of N-P2O5-K2O /ha), 100% RDF + bio fertilizer consortia (Azotobactor + Azosporillum + phosphobacter) @15 kg/ha, 50 % recommended dose of nitrogen (RDN) through farm yard manure (FYM) + 50 % RDF + bio fertilizer consortia (BFC) @15 kg/ha, 50 % RDN through vermi compost (VC) + 50% RDF + BFC @15 kg/ha, 75 % RDF + 25 % RDN through FYM, 75 % RDF + 25 % RDN through VC, 75 % RDF + 25 % RDN through FYM + BFC @15 kg/ha and 75 % RDF + 25 % RDN through VC + BFC @15 kg/ha. The yield attributes such as number of cobs/plant, cob length, cob girth and cob weight along with green cob and forage yield were remarkably influenced by integrated nutrient management treatments. Application of 75 % RDF + 25 % RDN (VC) + BFC @15 kg/ha recorded the highest yield attributes and green cob (12.01 t/ha) and fodder (` 16.52 t/ha) yield. It was followed by 100 % RDF + BFC @15 kg/ha producing the green cob and forage yield of 11.67 and 16.17 t/ha, respectively. The maximum net return (Rs. 164206/ ha) and benefit cost ratio (1.92) was obtained with integration of 100 % RFD (120-60-60 kg of N, P2O5 and K2O /ha) and BFC (Azotobactobacter + Azosporillum + posphobacter) @15 kg/ha.
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Brinjal (Eggplant) Solanum melongena Linnaeus is the most important vegetable of hot and humid climates. A wide range of essential biochemicals and minerals belongs to brinjal. It is a fairly good source of iron, calcium, phosphorous, potassium and vitamin B group. Brinjal Shoot and Fruit Borer Leucinodes orbonalis Guenee is the major infectious insect causing a great damage to plants. BSFB generally depends on brinjal but it may infest other solanaceous field crops and may be on wild hosts. The insect has been reported a number of crops such as S. tuberosum (potato), S. lycopersicum and some other Solanaceous crops. The damage by this borer starts at seedling stage and continues till the last harvest of fruits. Egg-laying occurs during night and incubation period ranges from 3-8 days depending of environmental conditions. Larval period completes in 12-22 days depending upon environmental situations and passes through five instars. Full grown larvae pupate into the soil or under plant debris and dropped dead shoots. Adult of BSFB is a whitish moth which hides during day time and activates from dusk to perform various activities like mating oviposition. Larvae bore into fruits and shoots and in younger plants, caterpillars drill into midrib of large leaves. At the time of maturity, damage of the insect on fruits causes a serious loss in yield.
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The field experiment was conducted in sandy loam soil at Research Farm, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Bagusala village, Paralakhemundi, Odisha, India during summer season of 2018. The experiment was laid out in randomized complete block design with three replications and eight treatments. The herbicidal treatmentrs of pre emergence (PE) application of either pendimethalin @ 0.75kg/ha, oxyfluorfen @ 50 g/ha and metribuzin @ 0.3 kg/ha at 1 day after sowing (DAS) or the same herbicides supplimented with straw mulching (SM) @ 6 t/ha at 30 DAS were compared with intercultivation twice at 20 and 40 DAS and unweeded control.Experimental results revealed that weed mangement treatments significantly influenced the yield attributes and yield of sweet corn along with improvement in weed control efficiency. Pre emergence application of either metribuzin @ 0.30 kg/ha or pendimethalin @ 0.75 kg /ha at 1 DAS in combination with SM @ 6.0 t/ha at 30 DAS remarkbly enhanced the yield attributes such as number of cobs/plant, cob length, cob girth and cob weight. The green cob (11.78 t /ha) and forage (14.55 t/ha) yield were the highest with metribuzin @ 0.30 kg/ha as PE at 1 DAS + SM @ 6 t/ha at 30 DAS. It was followed by pendimethalin @ 0.75 kg /ha as PE at 1 DAS + SM @ 6 t/ha at 30 DAS producing the green cob and forage yield of 11.21 and 14.22 t/ha, respectively. The reduction in yield was to the tune of 35.10% due to uninterrupted growth of weeds. The maximum gross return (` 250150 /ha), net return (` 181635 /ha) and B:C ratio (2.65) were obtained with PE application of metribuzin @ 0.30 k g/ha at 1 DAS + SM @ 6 t/ha at 30 DAS. It was followed by pendimethalin @ 0.75 kg /ha as PE at 1 DAS + SM @ 6 t/ha at 30 DAS registering the gross and net return of ` 238420/ ha and ` 169605 /ha, respectively.
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Tea is one of the important plantation crops of India as well as West Bengal, contributes considerably in national economy and earns foreign exchange. During 2014-15, total production of tea in India was 1233.14 m kg, out of which only 100 m kg were organic tea. Mainly due to importers demand of organic tea, there is urgent need to enhance organic production of tea crop. Indiscriminate use of inorganic agricultural inputs-fertilizers, weedicides, pesticide and fungicides and lesser use of organic matters deplete soil health, residues remain beyond MRL in processed tea, ultimately reduction in export. Tea Board provides 55% subsidy for organic tea production. For organic cultivation of tea, the planting materials should also be organically produced in nursery, which is very scanty for perennial crops in general and plantation crops in particular. With this background, the present investigation was carried out at instructional farm of the department of Plantation Crops and Processing, UBKV, Pundibari, with the objective to standardize the organic manures and bio-inoculants for production of improved planting materials of tea, The experiment was conducted from 2013 to 2015 and laid out in completely randomized block design. The planting materials of tea chosen to standardize organic manures and bio-inoculants were TS-462 and TV 26. From the study it can be inferred that, the treatment T6-vermicompost 50 g/sleeve and bio fertilizers mixture 10 g (Azotobacter + Azospirillium + PSB + Trichoderma + VAM @2.0 g each)/sleeve observed to be the best when compared to other treatments and control.
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A field study was conducted to evaluate the efficacy of different new generation fungicides and biopesticide against Phytophthora capsici in black pepper. Five commercial fungicides and a biopesticide were tested and natural infection due to P. capsici was recorded. Disease indexing was done by visual observation on leaf blight, spike infection, leaf shedding and yellowing of vines. Among the different fungicides, spraying and drenching with Fenamidone 10WDG + Mancozeb 50WDG @ 0.2% was found to be the most effective with 12.4% disease intensity. It was followed by Copper hydroxide 77 WP @ 0.2% with 17.8% disease intensity. Dimethomorph 9WP + Mancozeb 60WP and Cymoxanil 8WP + Mancozeb 64WP were also effective against Phytophthora infection and found better than the existing practice of spraying Bordeaux mixture and drenching Copper oxy chloride. Soil application of talc based formulation of PGPM mix @ 50 g/vine and foliar spray at 2% concentration also resulted in considerable reduction in the severity of Phytophthora infection in black pepper.
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Rice blast caused by Magnaporthe grisea is turn to be one of the most severe pathogen under change in climatic condition in coastal region of South-Eastern India. Severity of the pathogen was not overwhelming previously. An investigation was carried out in several villages of different districts of Andhra Pradesh and Odisha under the RAWEP programme of Centurion University of Technology and Management with compared to meteorological data support from IMD, Bhubaneswar, Odisha. Different meteorological factors consider under this study were maximum temperature (Tmax), minimum temperature (Tmin), relative humidity maximum (RH max), relative humidity minimum (RH min), rainfall (RF). Among the three cultivated rice varieties, Pooja and Samba mahsuri (BPT-5204) are the most susceptible blast varieties (5.71% and 4.85%) compared to Swarna (MTU 7029) with a disease incidence level of 1.23%. Outcome of this investigation also revealed that the most crucial two (Tmax and RH max) factors directly involved for the emergence of the disease compared to previous year 2015-16 and 2016-17. The peak disease infestation was observed in the month of October and November with PDI of 27.33 % and 26 %. Farmers based prolonged survey report and our observation concluded with the fact that Tricyclazole 75% WP (trade name – BAAN/ Indofils) and 40% EC formulation of Isoprothiolane (trade name – Fujione / Rallis India Limited) are the two sequential most effective fungicides compared to different market based available fungicides and showed best efficacy against neck, collar and leaf blasts. Weather parameters as well as complex adaptability of the pathogenic nature (showing resistant against different fungicides) turned this Ascomycota member to a severe one.
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Matrix effect of twenty three (23) multi-class pesticides in three different vegetables (Bitter gourd, Chilli, Cabbage) was evaluated using modified QuEChERS [Quick (Qu), Easy (E), Cheap (Ch), Effective (E), Rugged (R) and Safe (S)] coupled with GC-MS analysis. Validation parameters (linearity, LOD, LOQ, accuracy and precision) were determined for multi-residue analysis. The Horwitz ratio was used to explain for intra-laboratory precision. The matrix effect (% ME) for each pesticide in each vegetable was assessed based on the study of slope ratio of linearity curves obtained from solvent and respective vegetable matrix. Most of the compounds had positive matrix effect and cabbage was found to be the least sensitive matrix compared to others. Recovery study was carried out fortifying pesticide mixture prepared from both pure solvent and matrix. The values of recovery percentages were satisfactory when calculated with matrix matched standard mixture (79% to 108%), with an acceptable relative standard deviation (RSD) (<20%). The results of the present study truly revealed the influence of matrix in pesticide residue estimation.
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Rice is the staple food of Keralites. Kerala climate is well suited for wetland paddy cultivation. However, the paddy land in Kerala is decreasing over years. The Kerala conservation of paddy land and wetland Act, 2008 made a slight change in this decadal decreasing trend. In this study, Bai-Perron test identified a structural break in area, production and productivity during 2007-08 and 2009-10, which could be associated to the conservation act. The compound annual growth rate for area and production was found to be negative. The growth in area diminished before and after the break, but the diminishing rate was less after the break (-2.52%) than the period before the break date (-4.40%). So, as in the case of production. Productivity showed a positive growth rate for the overall period. Instability in production was high after the break date, whereas, instability in area remained almost same for both before and after the break dates. Exponential growth model was used for forecasting. The forecasted area and production up to 2030 showed a declining trend. The forecasted results on area showed that there will be a decline of around 36,444 ha in another 12 years. Similarly, the production will also come down to 3,70,795 t.
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The present investigation was led during the year 2018-19 at Department of Soil Science and Agricultural Chemistry, M.S. Swaminathan School of Agriculture, Gajapati, Odisha with intend to consider supplement status of various village of Gosani square. The examples were gathered from various homesteads and towns of Gosani square. At that point test investigated according to standard strategy for surveying pH, EC, OC, and significant supplements like accessible nitrogen, phosphorous and potassium with micronutrients like zinc, copper, manganese and iron status of soils. The pH of soils changed from 6.13 to 6.44 and EC shifted from 0.06 to 0.34 dS/m. The natural carbon content in ranch soils was shifted from 0.35 to 0.55%. The accessible nitrogen, phosphorous and potassium ran from 125 to 250 and 31 to 41 and 185 to 542 kg/ha individually. The accessible zinc, copper, manganese and iron went from 1.08 to 2.92, 0.90 to 3.06, 9.96 to 27.90 and 17.02 to 74.14 mg/kg individually. The outcomes demonstrate that result were somewhat acidic in response, non-saline and low in natural carbon. The results were low to medium in accessible nitrogen and high in accessible phosphorous and medium to high in accessible potassium. The micronutrient status like accessible zinc was low to satisfactory and accessible copper, manganese; iron were sufficient sum found in soils. The outcomes presume that decent use of supplements required for fruitful harvest creation and advancement of vegetable in various villages under Gosani Block.
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Sugarcane is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Sugarcane yields are declining due to varietal degeneration and susceptibility to biotic and abiotic stresses. Smut of sugarcane is one of them, the disease can cause significant losses in cane tonnage and juice quality. As development of superior sugarcane varieties through conventional hybridization program is time consuming and has the problem of transfer of undesirable characters/traits into the newly developed hybrids/variety. In this connection, attempts were made to introduce genetic variability in sugarcane by in vitro culture techniques and mutation breeding. Induction of somaclonal variation is one of them which is described as the genetic variability present among cultured cells, plants derived from such cells or progeny of such plants. The treatment, MS medium supplemented with 3 mgl-1 2,4-D found most suitable for callus induction and multiplication. The callus on application of EMS become pinkish brown in colour, shoot regeneration from callus cells was high in MS medium supplemented with 3 mgl-1 BAP gave dark gray or brown and sticky callus. Molecular analysis of somaclonal mutants showed by primers polymorphism of DNA bands on validating with molecular markers viz. RAPD and ISSR markers gave 100 per cent polymorphism by two RAPD primers named OPA-01 and OPA-02 showed that out of 17 DNA samples of mutants considered, all were showing variations but one DNA sample was showing similarity with mother plant. The present investigation reports the study induction of somaclonal variation in Sugarcane (Saccharum officinarum) and validation of mutant using molecular markers in variety Co261.
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Tripura is a land of high hills, hillocks, interspersed with rivers and valleys having moderately warm and humid climate, well distributed annual rainfall of 2500 mm. The terrain soil and climate of Tripura are ideally suited for rain-fed Horticulture. Tripura, being endowed with fertile soils, abundant moisture and sub-tropical climate offer immense scope for production of a wide variety of tropical and sub-tropical fruits. The climatic conditions of the state suitable for production of a large variety of horticultural crops chief among which include ‘Queen’ and ‘Kew’; varieties of Pineapple. Pineapple (Ananas comosus L.) is a monoecious, monocotyledonous, monocarpic and xerophytic herbaceous perennial plant and its perennial in nature is propitiated through suckers. ‘Queen’ and ‘Kew’ (‘Smooth Cayenne’) are the main cultivars grown in different parts of Tripura. Among the states of north east India Assam is leading in terms of area and production and Tripura is just behind the Assam both in terms of area and production. Tripura produces 178.45 thousand MT from 12.57 thousand ha area (Anonymous, 2017), which is India’s fifth leading state of in pineapple production and Tripura is also share 9.30 per cent of India’s total pineapple production. The variety ‘Queen’ being the most popular for fresh consumption and occupying the largest area. These varieties are well known in the rest of the country. These Fruit products are free of any chemical residue thus making the fruits of Tripura products of organic farming. Pineapple production for export market is a realistic for organic cultivation for small scale organic farmers. The positive effects of organic pineapple production by default in Tripura competing on the global export market for pineapple.
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Brassinsteroids (BRs) are a class of novel plant hormones gaining importance as potential allies of agricultural development worldwide. Research findings on influences of exogenous BRs application on various aspects of growth and development like vegetative growth, flowering, fruit set, fruit growth, ripening, storage, and tolerance to various biotic and abiotic stresses in fruit plants’ have been reviewed and discussed. The molecular or biochemical aspects of BRs responses to modulate growth and productivity by activating or withholding enzymatic reaction of different biochemical pathways of fruit plants have been elaborated. BRs are involved in ripening and fruit quality development of climacteric and non-climacteric fruits; as per reports of many researchers, they improve fruit color, phenolics, anti-oxidant activities and post-harvest life of many fruits. Fruit cracking in litchi has been found to be significantly reduced due to BRs application. This group of plant hormones possess the capacity to negate genetoxicity and pesticidal residues in many horticultural crops; it reflects the extension of their uses in producing consumer-friendly fruits through BRs application. One of the biggest advantages of BRs application is controlling favorable plant responses under abiotic and biotic stresses; plants have been reported to manage these stresses through modifications in various gene expressions and physiological processes under the influence of the BRs. The need for in-depth studies has been speculated for optimizing the concentration of BRs application together with the standardization of critical stages for harnessing the benefit of quality orchard productivity under varied growing conditions.
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The crop growth model DSSAT (Decision Support Systems for Agrotechnology Transfer) used to simulate the weather parameters impacts on crop growth and yield. The experiment was conducted on Wheat crop in North Eastern Plain Zone of India. The main objective of the study was to evaluate wheat phenological stages and yield in major wheat growing zone of India. Among the parameters of the crop Yield and Days of flowering has been used for calibration and validation purpose. For the study CERES - Wheat model was used for the calibration and validation. Different data sets were used for the calibration and validation of the model. Methods of deviation statistics like Index of Agreement (d), RMSE and NRMSE are used to measure the efficiency of the model. For Yield it shows (d), RMSE and NRMSE values 0.961,199.25 and 5.17 respectively and for Days of flowering it shows (d), (RMSE) and NRMSE values are 0.970, 4.37 and 4.35 respectively. Study results shows that model is adequate to simulate the effects of climate change on wheat yield in North Eastern Plain Zone of India that are free from all pests. The model may also be used to improve and evaluate the current practices of wheat growth management to enhance wheat production.
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The paper entitled “Influential Factors on Customer Satisfaction: Case of Branded Fast Food Outlet in Jammu City” was carried out in Jammu city of J&K (UT). The research adopted a convenience sampling technique to carry out the survey. The primary data was collected from 100 respondents by filling up the pre-tested schedule-cum-questionnaire. The major findings of the study show that the factors like hospitality, advertisement, and price of the food at the branded retail outlets influence the overall customer satisfaction.
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The oranges created in Amravati district possessed the biggest share of oranges within the Vidarbha orange market. The orange crop plays a vital role within the economy of the region. Among the fruit crops, orange crop covers about 45,226 ha area in Vidarbha. There is still a good potential toward bringing a lot of area below orange in Vidarbha region. The present paper analyses the information behaviour of orange growers concerning the production of the oranges. The various types of constraints confronted by the orange grower related to production of orange are rootstock availability, labour availability, manures and fertilizers, irrigation, plant protection, capital, availability of loan from co-operative society, technical information, use of growth regulator, supporting and constraints confronted by the orange grower related to marketing of orange are Grading, Transportation, Sale of produce, Packaging, Storage. The study was conducted in the purposively selected Amravati district of the Vidarbha region of Maharashtra state. Five Panchayat Samities from Amravati district were hand-picked purposively covering ten villages from every Panchayat Samiti. Thus, a total of 50 villages and five orange growers from each selected village was selected 250 orange growers constituted the sample size for the present investigation. The main objective of the present paper is to analyze the constraints faced by orange growers in the Amravati District of Maharashtra. Study findings indicated that the orange growers were non-availability of rootstock, high cost of rootstock and fertilizers, uncertainty of electricity supply and difficulties in getting loan were major constraints faced by the farmers which are related to the production. Lack of transport facilities, non-establishment of processing units, and high cost of packing material and non-availability of storage facilities in nearby markets were the major constraints about marketing on orange.
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A study was undertaken to estimate the heterotic, heterobeltiotic and standard heterotic effects of 11 characters of 45 maize hybrids developed by ten parents in maize during rabi, 2011-12 over three locations viz., College Farm, Rajendranagar (Hyderabad), Agricultural Research Station, Karimnagar and Agricultural Research Station, Kampasagar, Nalgonda District, T.S. The pooled analysis of variance (Diallel) revealed significant differences among locations and genotypes for all the characters studied. The crosses exhibited significant differences, indicating varying performance of cross combinations. The parent vs crosses which indicates average heterosis, for all the traits, thus considerable amount of average heterosis was reflected in hybrids. Negative standard heterosis was observed for days to 50 per cent tasseling, days to 50 per cent silking and days to maturity due to earliness in three hybrids over checks DHM-117 and 900 M Gold were BML-2782 X BML-5233-5, CM-211 X BML-5233-5 and BML-2486 X BML-2. Five crosses viz. BML-15 X BML-2910, BML-7 X BML-3044, CM-211 X BML-7, BML-6 X BML-2 and BML-2782 X BML-6 were identified as potential hybrids with more than 12% standard heterosis for grain yield over better yielding commercial hybrid check DHM-117. Testing of these hybrids in all India coordinated trials across the different states of the country may result in identification of better hybrids in the near future for commercial exploitation.
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In order to investigate the effect of zinc nutrition on growth, yield, and quality parameters of sweetcorn, a field experiment comprising of nine treatments with three replications was carried out in Randomised Block Design during Kharif, season 2020 on sandy clay soils of Agricultural College Farm, Bapatla. The analysis of variance showed a significant effect of zinc application on growth and yield parameters. The detailed results of the study showed that among the various zinc fortification treatments, RDF + Zn EDTA @ 10 kg ha-1 (Soil) + Nano ZnO @ 250 ppm at 20 & 40 DAS (Foliar spray) registered superior plant growth characters like plant height at harvest (214.4 cm) leaf area index at harvest (2.94) and dry matter accumulation at harvest (9903 kg ha-1). The yield parameters like no. of seed rows per cob (16.84), no. of seeds per row (32.57), green cob yield (12,638 kg ha-1), and green fodder yield (19,674 kg ha-1) were maximum with RDF + Zn EDTA @ 10 kg ha-1 (Soil) + Nano ZnO @ 250 ppm at 20 & 40 DAS (Foliar spray) which was significantly superior over rest of the treatments whereas lower growth and yield was noticed with RDF alone.
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The attempt was to design and develop an automatic closed canopy chamber (ACCC) having dimension of 1.2 m×1.2 m× 1.2 m for crop evapotranspiration measurement by using transparent acrylic sheet of 4 mm thickness. Between two small fans a temperature and relative humidity sensor was used to measure vapor density. The intermediate circuit was developed for making automation system in ACCC. The arduino based coding was developed as per desired logic operation. The top lead of chamber was automatically closed for 2 minutes when inside and outside temperature and relative humidity of ambient air were similar. During measurement mode of ACCC, the two fans were started automatically. After measurement mode, fans were automatically stopped and top lead was opened. The ACCC was calibrated by evaporating mass of water from water filled tray which was placed inside the automatic closed canopy chamber. The validation of the developed ACCC were made using micro-lysimeters (MLS ) having size of 0.2 m × 0.2 m × 0.2 m by growing shallow rooted crop like fenugreek. The depth of irrigation was computed based on soil moisture content before irrigation and field capacity. The field testing of ACCC was made by placing chamber in plots of fenugreek crop. The irrigation was applied by drip irrigation as per crop water consumption. The sensor sensed and recorded the instantaneous temperature and relative humidity at 1 second interval for 24 hours. Two sample t-tests were done to compare the data pair of crop evapotranspiration obtained by the MLS inside the ACCC with that of outside the ACCC to ascertain whether there is any effect of the change in micro-climate for a short period of 2 minute on the crop growth physiological processes. Also, the data pair of crop evapotranspiration measured by the MLs, ACCC using the sensor data of temperature-relative humidity were compared and statistically analyzed through t-test. Similarly, the data pair of ETC measured by the FWB (Field Water Balance Method) and ACCC using the sensor data of temperature-relative humidity were also compared and statistically analyzed through t-test. The calibration factor of the ACCC was found as 1.666. The results revealed that there was no significant difference in the crop evapotranspiration measured by the MLs inside and outside ACCC. Also in case of validation and field testing of ACCC, there were no significant difference between the ETC measured by the ACCC, MLs and FWB at 95 percent confidence level. This implies that there are no effects of the change in micro-climate for a short period of 2 minutes in the chamber, on the plant physiological processes. The ETc rate of fenugreek increases as sun rises and reaches the peak after one to two hour from mid-day and then continuously decreases with time. During validation and field testing of ACCC, the fenugreek crop coefficients varied from 0.72 to 1.04 and 0.69 to 1.02 respectively. The developed ACCC is portable as well as more comfortable and cost effective compared to the lysimeter for the measurement of the actual crop evapotranspiration and the crop coefficient
Abstract :
Precision nutrient management is the most advanced agronomic strategy for improving crop yields and managing soil and environmental quality. Considering the above, a field experiment was conducted at the Agriculture Research Farm, Baghasala of Centurion University of Technology and Management during the rabi season of 2020-21 to find out the impact of nitrogen management options on growth and productivity of maize (Zea mays L.). The experiment was consisted of eight treatments, viz., T1: control, T2: 150% RDN, T3: 125% RDN, T4: 100% RDN, T5: 75% RDN, T6: 50% RDN, T7: LCC (25 Kg/ha N @basal, 45 Kg/ha N at 21 DAS, 45 Kg/ha N @ LCC<5 at 45 DAS) and T8: SPAD (75 Kg N/ha @basal, 20 Kg N/ha @SPAD<45 at 21 and 45 DAS). The treatments were laid out in Randomized Block Design with three replications. The maximum values of growth attributes, namely, plant height, dry matter accumulation, leaf area index and crop growth rate and yield attributes, such as cob length, cob girth, grains per cob, test weight inclusive of grain yield (6.65 t/ha), straw yield (8.42 t/ha) were obtained with the application of 150% RDN. For expression of crop growth characters, yield attributes and yields application of 150% RDN proved its superiority and it was followed by 125% RDN and 100% RDN at different growth stages. The treatments with precision N management tools like Leaf Colour Chart (LCC) and SPAD meter also resulted in crop performance with close proximity to 150% RDN, 125% RDN and 100% RDN treatments
Abstract :
The genus Quercus comprises very important tree species of the Himalayan forests. Oaks are crucial for a multitude of ecosystem services and livelihood support services reaped by the locals in the Himalayan region. Quercus semecarpifolia is the oldest and dominating species of the Himalayan region. It is considered a lifeline for people of this region due to the wider range of ecosystem and livelihood services provided by it. But this species forest is depleting very rapidly in his region due to over dependency. Major cause of overexploitation is lopping for fodder and fuelwood. The present study attempted to Quantify, recognize, and group the ecosystem services provided by Q. semecarpifolia. Further, certain factors responsible for regular shrinkage of Q. semecarpifolia forests were also addressed.
Abstract :
With an average consumption of 165.8 kg per hectare, India stands as the third-largest producer and consumer of fertilizer in the world. Farmers practice traditional methods to apply fertilizers uniformly throughout the field. This uniform and constant rate application of fertilizer is inefficient and mostly leads to over-fertilizing certain areas and at the same time, under-fertilizing others, not meeting the actual nutrient demand. Variable-rate fertilizer application (VRFA) is the process of applying various rates of crop nutrients by synchronizing existing machinery with mechatronics according to the variability within any agricultural field. One such effort are to be made to develop VRFA systems to meet the soil and plant needs. A variable rate fertilizer application (VRFA) system based on a digital map was developed in Kharagpur and achieved an appreciable target application rate at selected grid points (Chandel et al., 2016). The system was effective, accurate and showed quick response to target application rates with a negligible time lag. The coefficient of variation at all the outlets was in the range of 11.7–15.0 percent. The system was able to meet the target fertilizer application rate with a variation of up to 15 percent for a grid resolution of 8×8 m. Another VRFA system was developed for controlling the amount of fertilizer that works by measuring the NDVI of crops using an optical sensor (Zhang et al. 2014). This type of VRFA system does not use prescription maps but relies on sensors to provide real-time crop detection. The coefficient of variation was ranging from 0.35 to 2.67 percent and elapsed a response time of less than 0.875 s. The system helps in maintaining desired application rate by making real-time adjustments with on-the-go monitoring. It is revealed that the use of VRFA system helped to improve input use efficiency and decrease the negative effect on the environment. Thus, it is a promising technology through which the performance of a unit area could be tracked, mapped and analyzed. Also, the farmer will be able to know the exact production of each part of the field.
Abstract :
Eucalypts are among the most widely cultivated forest trees in the world under a range of different climates for products that include pulp, paper fuel wood and solid wood products such as poles, furniture and construction timber. Productivity and profitability of plantations of Eucalyptus have been revolutionized with the development of genetically improved, fast growing and high yielding Clonal planting stock of Eucalypts. Eucalypts Clonal planting has been said to have advantages which includes quick provision of benefits associates with fast growth, short rotation for production of pulp wood (of around 70 MT ha-1 in 6 years) ready marketing and easy establishment and less maintenance needs. Clonal planting one among the approach for management of water and nutrients compared to the other conventional strategies. Studies relating to Clonal difference and evaluation for dry matter production will help for better water and nutrient use efficiency to overcome productivity loss due to deficit rainfall and optimum utilization of available natural resources for higher wood production. The present study was carried out to test the hypothesis that there exists a Clonal variation in dry matter production and the present study gives an insight in to Clonal variation in with reference to dry matter production of above ground and below ground biomass.
Abstract :
A field experiment was conducted to study the “Effect of bulky organic manures and fermented liquid organics on growth, yield, nutrient uptake and economics of French bean (Phaseolus vulgaris L) under rainfed condition” at Organic Farming Research Centre, Zonal Agricultural and Horticultural Research Station (ZAHRS), Navile, Shivamogga, during Kharif 2018-19. The experiment was laid out in randomized block design with ten treatments comprising of different bulky organic manures (FYM and Vermicompost) and fermented liquid organic manures (Beejamrutha, Jeevamruta, Panchagavya and Cow urine) were replicated thrice. Experimental results revealed that, significantly higher growth, yield attributes, economics and nutrient uptake with good shelf life and protein content of the French bean were found in the treatment which received Beejamrutha (seed treatment) + Jeevamrutha (soil application @ 500 L ha-1) + 100 % RDN through vermicompost + Foliar spray of Panchagavya @ 3 % (T6) and were on par with application of Beejamrutha (seed treatment) + Jeevamrutha (soil application @ 500 L ha-1) + 50 % RDN through FYM + 50 % RDN through vermicompost + Foliar spray of Panchagavya @ 3 % (T7) and Beejamrutha (seed treatment) + Jeevamrutha (soil application @ 500 L ha-1) + 100 % RDN through FYM + Foliar spray of Panchagavya @ 3 % (T5). Simillar trend of higher benefit cost ratio was also recorded in the same set of treatment combination. This study indicated that combined application of bulky and fermented liquid organic manures in seed treatments, soil application and foliar spray performed better in organic French bean production at best benefit ratio cost.
Abstract :
Wheat is one of the potential crops in Birbhum District from a platter of crops having utility in a crop diversification programme. As crop diversification is one of the major thrust areas of the Rathindra Krishi Vigyan Kendra, the Kendra has taken up the crop diversification programme with newly improved High Yielding (HY) wheat varieties through its Front Line Demonstration (FLD) Programmes for the last couple of years. In Birbhum the average yield of Wheat stood at 2950.20 kg. / ha in 2015-16. This figure shows that there is a lot of scope in improvement in productivity as concerned. So, the main objectives of these demonstration programmes of the Rathindra Krishi Vigyan Kendra were to show the farmers the modern methods of wheat cultivation using resource conservatory technologies thus increasing the production, productivity, net returns and B: C ratio. The results from the FLD Programmes showed us that the highest ever yield was achieved by the newly improved HYV HD – 2824 in the year of 2014-15 with an average yield of 4056.00 kgs. / ha with an yield increase of 21.92 per cent over the local check variety Sonalika (yield – 3330.00 kgs. / ha) and with a B : C Ratio of 2.32. However, the highest yield increase over the local Check Variety Sonalika, Net Income and as well as B: C Ratio were highest in the case of Variety PBW – 343 with a Yield increase of 27.50 per cent, an average Net Income of ` 32,049.00 / ha and B: C Ratio of 2.39 in the year of 2016-17. The studies conducted on the performances of the FLDs organized by the Rathindra Krishi Vigyan Kendra on newly improved Wheat Varieties safely point out that HD – 2824 and PBW – 343 are the two HYVs of Wheat which can meet up the growing demands of Wheat Varieties with improved yield and as well as increased income potential for irrigated situations of Birbhum District.
Abstract :
In the wake of changing climatic scenario, dimnishing natural resources and growing food demands, the availability of germplasm capable to withstand biotic and abiotic pressures is crucial to ensure sustainability in agriculture system. Among the biotic stresses, fungal leaf spot disease cause significant yield reduction in mungbean (Vigna radiata L.) and urdbean (Vigna mungo L.), which are predominently grown in India and many parts of South and Southeast Asia. The present investigation was designed to identify resistant donors against the fungal leaf spot in mungbean (200) and urdbean (100) accessions by phenotyping under natural field conditions during kharif 2019. Though none of the 200 mungbean lines were found resistant to fungal leaf spot, 8 lines displayed moderate resistance. Likewise, out of 100urd bean accessions three germplasm lines unveiled resistance and 6 moderate resistance against the disease leaving others suceptible to highly sucepetible. The DNA of pathogen causing fungal leaf spot were isolated (Jhansi isolate) from the fungal mycelium and infected plants, respectively for molecular characterization and it was amplified using published primers for ITS and β-tubulin region for sequencing. A phylogenetic analysis of ITS sequence of the Jhansi isolates along with the reference sequences from NCBI, GenBank revealed maximum identity (98.53 per cent) of isolate with Corynespora cassiicola of cowpea reported from Ghana. Further β-tubulin sequence also showed 88.55 per cent similarity with C. cassiicola isolate from China. This was further confirmed by leaf sensitivity test against crude fungal toxin cassicoin secreted by C. cassiicola.
Abstract :
To fulfill the demand of increased population it is very essential to enhance crop productivity with precise inputs. Non-judicious application of inorganic fertilizers and other agrochemicals is degrading soil health, creating environmental pollution and also contributing to climate change. Nowadays, people became more aware towards health risks and demand for quality foods with less chemical residues is increasing as there is a progression of demand for organic products. But it is very difficult to produce adequate quantity of organic foods for the raised population in the developing countries as per standard organic practices. That’s why judicious use of inorganic fertilizers, organic manures and biofertilizers is required to supply nutrients to crops. Plant growth promoting rhizobacteria (PGPR), such as Rhizobium inoculation in groundnut (a major oilseed crop) can boost crop growth and enhance yield in a sustainable manner. Further, Rhizobium has multifaceted advantages in crop nutrient uptake and soil quality improvement. The article described the role of PGPR as well as Rhizobium in growth and productivity of groundnut towards production sustainability.
Abstract :
The world as well as in India, rice is playing a major role in food security. Production factors (like rainfall, minimum temperature, fertilizer consumption, an area under irrigation for a particular crop) are very crucial for crop productivity. Forecasting is always important for policy implication and planning purposes of the country. In the present investigation, the projection has been made using simple ARIMA and ARIMAX (with the inclusion of crop inputs in ARIMA models). In terms of less error in model and projection, wise ARIMAX model was found better compared to simple ARIMA. In this present study, forecasting has been attempted with the inclusion of meteorological factors using ARIMA modeling up to the year 2022. This study reveals the future trend of rice production as well as a factor affecting productivity. Among the major states, West Bengal would lead the state in India in rice production, with a productivity of 4758 kg/ha, while Punjab will be the leader in productivity in the year 2022. This prediction would be helpful for policy implication and food security of the country
Abstract :
Abstract :
Soybean production in western Ethiopia particularly at Bako has remained low, partly due to soil nutrient depletion and degradation, which is considered serious threats to agricultural productivity and food security. This study was conducted to assess the effect of Bradyrhizobium japonicum strains and phosphorus rates on nitrogen uptake efficiency, N2 fixation of soybean, seed yield, yield components, yield and quality to enhance soybean production and yeild. Treatments included factorial combinations of four Bradyrhizobium japonicum strains with un-inoculated, (Soybean murodk, Soybean 12 and Soybean MAR-1495) and four phosphorus levels (0, 23, 46 and 69 kg P2O5 ha-1) which were laid out in Randomized Complete Block Design (RCBD) with three replications. Interaction of Phosphorus and Bradyrhizobium inoculation, revealed that application of 69 kg P2O5 ha-1 with Soybean 12 inoculation significantly resulted enhanced leaf area (64.2 cm2), and above ground biomass (8241 kg ha-1), whereas Soybean MAR-1495 strain inoculation produced highest harvest index (48.77% plant-1). Among all treatments, combined application of Soybean 12 along with 46 kg of P2O5 ha-1 gave better performance of soybean with highest seed yield. While, phosphorus rates at 46 and 69 kg P2O5 ha-1 with Soybean 12 inoculation resulted in maximum leaf area index of 0.157 plant-1. Hence, 46 kg P2O5 ha-1 phosphorus rate with Soybean 12 inoculation was found to be economical and superior in yield.
Abstract :
Genetic similarity of fifteen strawberry cultivars was assessed using RAPD and ISSR molecular markers. The DNA of the fifteen strawberry cultivars were extracted and amplified by PCR with RAPD and ISSR primers. The DNA Fragments were separated in agarose gel for RAPD and in polyacrylamide gel for ISSR markers. The genetic similarity matrix was estimated by Jaccard coefficient. Studied cultivars were found to be coherent into two groups. RAPD markers projected more coherence with origin and genealogy of the cultivars. ISSR markers projected more similarity between ‘Chandler’ and ‘Shasta’ whereas as per RAPD marker ‘Chandler’ and ‘Sweet Charlie’ were more closely related. In molecular assessment Elyana cultivar was found to be marked cultivars as it shows long flowering duration, higher yield and bigger fruits and can be used as a potential genotype to breed cultivars among the locally adapted cultivars.
Abstract :
Maize (Zea mays L.) is ranked number one in total production among food grains and is inevitable in achieving food security in Ethiopia. In spite of good agro-climatic conditions and soils, maize productivity is constrained by a number of problems; optimum plant population and nutrient management are the most critical among many others. Hence, this field experiment was carried out in split plot design distributing three levels of plant population 53,333 plants/ha, 66,666 plants/ha, and 76923 plants/ha in the main plots and five levels of NPSB fertilizer rates 0,100,150,200 and 250 kg/ha in sub-plots comparing with NP recommended rates in the research area. The two main effects, the plant population and NPSB rate did not change cob length, number of row cob-1 and harvest index. The analysis of variance showed the interaction of plant population and NPSB rates influenced number of kernels cob-1, thousand kernel weight, number of cobs per plot and above ground biomass. Highest number of cob plot-1 was recorded from the plot with 66,666 plants ha-1 and highest biological yield 28299 kg/ha was harvested from the plot with standard check. The highest grain yield was obtained from 150 kg/ha with the plant population of 66666 plants/ha (60 cm × 25 cm). From the research it was concluded that the yield of maize was significantly affected by fertilizer rates and plant population, the combination of 66,666 plant/ha and 150 kg/ha of NPSB fertilizer rate was found to be superior and economically viable for maze production in the study area and similar agro ecologies.
Abstract :
Maize is a priority crop to farmers because it is a staple food in many rural communities of the southern region. It is widely grown in the various parts of the southern region, from lowland to mid-highlands. On the other hand, moisture stress is one of the most critical production constraints of maize in low to intermediate agroecology. Thus, developing maize varieties tolerant to moisture is of paramount importance to sustain maize production in moisture areas. In this context, field experiments were conducted during 201617 croppings at Kindo Koyisha and Humbo to select adaptable maize varieties for moisture stress areas with reasonable grain yield. Treatments used in this study were eight maize varieties (BH546, BH547, Gibe II, MH130, Melkasa IV, MH140, Melkasa II, and Melkasa 6Q) and three local cultivars (Local red, Local mixed, and Local white) of the total of eleven maize genotypes were evaluated at two moisture-prone areas in southern Ethiopia. Treatments were laid out in a randomized complete block design (RCBD) with three replications. Maize varieties exhibited different performances at two tested locations. The varieties had the relatively superior performance of Kindo Koyisha as compared to Humbo. The Humbo varieties MH140, MH130, BH546, and Melkasa IV, have yielded relatively higher grain than the rest of the areas. At the same time, the Kindo Koyisha maize varieties expressed relatively better performance concerning grain yield. It has been recorded that the varieties with superior performance with sounding grain yield were BH546, MH140, BH547, and MH130 in these locations. Based on this result, BH546, MH140, and MH130 could be used at both locations. Moreover, BH547 at Bale and Melkasa IV at Humbo also be used in respective locations for production.
Abstract :
Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA) is different from earlier employment programmes launched by the government of India as, on the one hand, it is a demand-driven scheme while, on the other hand, it treats employment as the right of the rural household. This act was adopted by the Indian government to reduce rural unemployment and poverty so that it leads to the reduction of rural-urban migration in search of employment. This scheme also provides income directly to unskilled workers in rural areas. Women Empowerment is the important objective of this act; emphasis was laid on promoting gender equality through providing wage employment to women. This paper will mainly focus on the impact of the Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA) on the empowerment of women in the five-gram panchayats of Mandya district of Karnataka. It also focuses on the significant improvement of the status of rural women through MGNREGA socially, economically, and psychologically.
Abstract :
Pulse crops are grown in different cropping systems as a sole crop, catch crop, mixed crop, intercrop and sequential crop in different cropping systems followed by farmers. The crops are facing weed infestation during its entire life cycle from seed to seed. The weed management in appropriate time will increase the yield. In the present study, the dominant weeds species like Echinochloa colona, Cyperus rotundus, Commelina benghalensis and Phyllanthus spp. were observed. Among the treatment methods, application of both pre emergence (pendimethalin @ 1 kg a.i ha-1) at 3 DAS (days after sowing) + post emergence (Quizalofop-p- ethyl @ 50 g .i ha-1) at 25 DAS recorded the minimum weed density and shown weed control efficiency of 97.32 per cent at 45 DAS and 97.94 per cent at 60 DAS with seed yield of 1004.1 kg ha-1. The non chemical method like sugarcane trash mulching decreased the weed density but the complete weed control efficiency was not observed. The herbicidal treatments significantly reduced the weed biomass compared to weedy check.
Abstract :
In the present study an attempt has been made to germplasm evaluation in 39 diverse genotypes of tomato at Vegetable Research Farm, Rewa (Madhya Pradesh) during the Rabi session of 2011. Analysis of variance showed significant variation among the genotypes for all evaluated traits. Number of fruits plant-1 showed the highest genotypic and phenotypic variance (1282.0 and 1287.6) whereas test weight showed the lowest (0.03 and 0.08). High genotypic variance was observed for most of the characters indicating more contribution of genetic components for the total variation. Genotypic coefficients of variations (GCV) and phenotypic coefficient of variation (PCV) were highest for average fruit weight (48.85 and 48.87), number of seeds fruit-1 (44.54 and 45.29) whereas the lowest were recorded for days to 50% fruit setting (1.984 and 2.81). Higher GCV and PVC were recorded for most of the characters indicating higher magnitude of variability for these characters. The highest heritability (broad senses) estimates were observed for average fruit weight (99.92) number of secondary branches (99.65%), while the lowest was for the test weight (45.29%). Highest genetic advance as per cent of mean was recorded for average fruit weight (100.59%) and lowest for days to 50% fruit setting (2.89). The exploration of genetic variability in the available germplasm is a prerequisite in a breeding programme for effective selection of superior genotype of tomato.
Abstract :
The investigation on the impact of coriander CO (CR) 4 intercropping with the clipping type of amaranthus (CO3) for managing the defoliator, Spoladea recurvalis Fabricius was conducted in two different locations. To assess the influence of coriander and its repellency effects in varied planting ratio of amaranthus and coriander viz., 1:1, 2:1, 3:1, 4:1, and 5:1 were evaluated along with amaranthus sole crop. The results obtained on the aspects of amaranthus plant height, number of branches per plant, number of larvae per plant, percent foliage infestation, and total green yield clearly indicated that there is no more negative impact on the plant height aspect was registered due to intercropping with coriander crop. Among the different ratios evaluated, the highest plant height was observed and registered in the 5:1 ratio of planting, which is significantly higher than amaranthus sole crop. In the aspect of the number of branches per plant, the 1:1 and 2:1 ratio recorded the highest number of branches compared with the 4:1 and 5:1 ratio. It was considering the number of larvae per plant and percent foliage infestation 2:1 and 3:1 ratio of planting registered the lowest larval population (1.22 – 1.45/plant) and foliage infestation with the higher average yield of 31.79 and 30.02 tonnes/hectare (sum of 10 clippings) when compared with amaranthus sole crop cultivation. Among the varied ratio evaluated, the 2:1 and 3:1 ratio of amaranthus : coriander planting was found to be better in registering the lowest percent foliage infestation (10.52 -11.25%) with a higher yield (30.02 – 31.79 tonnes/ha.).
Abstract :
The physical properties of seeds are very important to optimize the design parameters of various agricultural equipment used in their production, handling, and storage processes. Determination and use of these properties are also essential for the development of optimum seed metering mechanism and also in the design of a hopper for a planter for precise sowing of seeds. Physical properties such as length, surface area, breadth, roundness, equivalent diameter, sphericity, angle of repose, and coefficient of friction were determined for the development of the seed metering unit. The physical properties of seeds were calculated initially. Three varieties of maize seed Rasi-3033, NMH-589, and KMH-2589. The mean values of seed length, width, thickness, sphericity, geometric mean diameter, surface area, bulk density, coefficient of static friction, angle of repose, and thousand kernel weight were 11.00 mm, 7.75 mm, 4.58 mm, 0.65, 7.09 mm, 158.14 mm2, 746.4 kg m-3, 0.60, 28.17o and 0.23 kg, respectively. These properties were used in the development of efficient planter components to work effectively.
Abstract :
- Twenty six bottle gourd varieties were evaluated for different quantitative characters using Randomized Block Design (RBD) with the aim to identify the most suitable variety.
Abstract :
The development and reproduction of insects are greatly influenced by a variety of nutritional and climatic factors. These factors may exert their effects on insects either directly or indirectly. Under natural conditions organisms are subjected to a combination of nutritional and climatic factors, and it is this combination that ultimately determines the distribution and abundance of a species. Frequently the effect of one facto modifies the normal response of an organism to another factor. For example climatic factor light, by inducing diapauses may make an insect unresponsive or unaffected by temperature fluctuations. Major silk producing insect Bombyx mori L is also not an exception. Bombyx mori L is a domesticated and delicate insect. Improper maintenance of nutritional and climatic factors affect the genotypic expression in the form of phenotypic output of silkworm crop such as cocoon weight, shell weight, and cocoon shell ratio. Besides it is not easy to manage silkworm rearing in West Bengal due to prevalence of high temperature and high humidity most of the time during the silkworm rearing. These climatic factors also influence the various nutritional factors. As per example humidity in the rearing room may affect the types of leaf fed to silkworm larvae in different instars. The present review paper discuss in details about the role of various nutritional and climatic factors on growth and development of silkworm and it also indicates future strategies to be taken for the management various climatic and nutritional factors for successful cocoon crop in West Bengal.
Abstract :
Covid-19 brought a paradigm shift on food consumption, purchase, and eating behavior of consumers significantly as concerns over safety, health, and financial worries increased. As the world was fighting the spread of the Covid-19 pandemic, an online survey is conducted to understand its impact on food purchasing, eating behaviors, and perceptions of food safety among the middle class and upper-middle population in the states of Telangana and Andhra Pradesh of India during April and May 2020. Many of the respondents were from Telangana (46.52%) and Andhra Pradesh (38.58%), respectively while few were from other states and countries. 60.7% of respondents who participated in the survey were from the urban areas, while 20.1% were from rural areas and 17% from semi-urban areas. A significant change is observed in consumers’ purchase behavior during the Covid-19 pandemic. People preferred to shop less frequently, and 62% of respondents managed with existing goods. 69% of people maintained social distancing and wearing masks while purchasing foods. 74.3% went to stores less often for groceries purchase. The amount of packaged food consumption increased by 28%. Consumers became more cautious about health and altered their eating habits. 60% of respondents have agreed that their food habits have changed, and 52% of respondents reportedly consumed healthier foods compared to pre-covid days. 90% of survey populations finished home-cooked meals. 96% of respondents were aware of the Covid-19 threat and were taking precautionary measures. 86% of respondents sanitized the food produce bought from outside. There was panic among 53% of respondents about the safety of food available. 34% of respondents did not want to go back to their old eating habits until they get vaccinated against covid-19.
Highlights
- Purchasing and eating habits have changed. People were shopping less in-person and consuming more home-cooked healthy meals while managing with existing stocks.
- Consumer behavior changed rapidly throughout, for the crisis. Food consumption, and eating habits, have been significantly impacted due to concerns about hygiene, personal safety, food purchases, and consumption.
Abstract :
Rice (Oryza sativa L.) is nutritionally, one of the most important cereal crops. Rice production is mostly reduced due to different biotic stresses. Bacterial leaf blight, caused by Xanthomonas oryzae pv. oryzae bacteria, is one of the major biotic destructive diseases throughout the world. This disease affects the rice production because it reduces the photosynthesis by causing leaf wilting. The preferred strategy for disease management is through varietal resistance because it is not fully controlled by any chemical treatments. Gene pyramiding is the most effective strategy; in which, pyramided lines with three to four different bacterial leaf blight resistance genes have been developed in the genetic background of popular rice cultivars by using marker-assisted selection. The present study was carried out with an aim to study the molecular characterization of 30 rice genotypes for BLB resistance using RAPD and SSR markers. Overall results on the basis of clustering pattern of SSR and RAPD pooled data analysis revealed genetic similarity between some of the pyramided lines with their respective recurrent parent. Some of the SSR markers are very informative and can be useful for marker-assisted selection.
Abstract :
Soil surveying, testing and mapping are important operations for knowing availability of nutrients and micronutrients in the soil and their optimum use for agricultural operation. The main objective of present study was to estimate the content of deficient micronutrients namely Zn, B and Fe in the soil of Kashi Vidyapeeth block of Varanasi District of Uttar Pradesh, (India) at different locations by using test results of sampled soils. The Kriging interpolation method (Krige, 1951) was used for preparing the maps to show spatial distribution of deficient micronutrients. The method can be used for recommending judicious applications of micronutrients for sustainable soil management.
Abstract :
A study was carried out by the Krishi Vigyan Kendra, Malkangiri during 2018-19 to find out the yield gap between farmer’s practices and demonstration practices through cluster front line demonstration in South Eastern Ghat Zone of Odisha. The results showed a 32.9% increase in the average yield of groundnut with demonstration practices as compared to farmer’s practices. Higher economic return was also obtained with demonstration practices. The average technology gap, extension gap, and technology index were 3.2 q/ha, 5.4 q/ha, and 12.8%, respectively. The yield potential of groundnut could be enhanced to a great extent through cluster front line demonstration with improved production technologies. Hence, it is necessary to educate the farming community for more adoption of improved cultivation techniques of groundnut to increase productivity and economic return.
Abstract :
Arsenic contamination in ground water is one of the major natural calamities of the world to the mankind. In the present study, altogether 20 water samples from 20 different tube wells of the house hold of Deoghar town were collected and analyzed on the spot with the help of arsenic test kit (color comparison method, [semi quantitative]). Final confirmation was made using atomic absorption spectrophotometer. The lowest average value 0.444 ppm was recorded in the south part and the highest average value 1.2 pm was recorded in the north part of the Deoghar town.
Abstract :
Bottle Gourd slabs of 10×10×3 mm, 10×10×5 mm and 10×10×7 mm were dehydrated by fluidized bed drying technique with a sample size of 100 g at air temperature of 50, 60 and 70oC at air velocity of 10m/s. The drying rate is high for the slabs of 10×10×3mm at 70oC. Moisture diffusivity of bottle gourd slabs dried under fluidized bed drying conditions was found in the range of 1.03 × 10-09 to 6.18 × 10-09 m2/s water activity varied from 0.318 to 0.393 for fluidized bed dryer. The product of fluidized bed dryer at 70oC (10×10×3mm) has best quality in terms of water activity. The experimental data was fitted to page model other than the mathematical models available in the literature. The fluidized bed dried product for 10×10×5 mm slab at 60ËšC was of best quality in terms of color.
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Self-help groups have emerged as a vital tool for economic development in India. In hill states like Himachal Pradesh importance of self-help group increases manifold due to higher number of fragmented small and marginal landholdings. Self-help groups must sustain as an economic venture for the overall development of rural areas. It is very important to study individual member traits to understand the sustainability of self-help groups. The present study was conducted in the state of Himachal Pradesh to assess socio-personal, socio-economic, and communication variables of self-help group members and to make a comparison with non-member farmers. Findings of the study reveal that most of the SHG members were of the middle age category, with dominating membership by women farmers. Most of the SHG members adopted vegetable farming along with other agriculture activities with medium vegetable growing experience. SHG members attended significantly higher training programmes than non-member farmers. Most of the farmers have marginal landholding but SHG members put a significantly higher portion of landholding in vegetable cultivation when compared to non-member farmers. Significantly higher vegetable production was reported for SHG member vegetable farms, and the reason for this was higher media exposure and significantly higher extension contacts of SHG members than non-members.
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Citrus is one of the most important fruit tree species in the world, as the fruits are a valuable source of nutrients, vitamins and other antioxidant compounds. The citrus productivity depends on various factors, among these the plant growth regulators holds a prime position. The use of plant growth regulators has become an important component in the field of citriculture because of the wide range of potential roles they play in increasing the productivity of crop per unit area. The plant growth regulating compounds actively regulate the growth and development by regulation of the endogenous processes and there exogenous applications have been exploited for modifying the growth response. Plant growth regulators have been used in citrus fruit production for influencing flowering, fruit set and fruit drop and play a major role in fruit growth and abscission. These regulators have also been used to influence fruit quality factors like peel quality and colour, fruit size, juice quality and to improve total soluble solids in different citrus species. This review may serve as a complete treatise on the possible roles of growth promoting substances on the physiological processes of citrus plant.
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A field experiment entitled “Effect of Crop Establishment Methods and Nitrogen Management on Growth and Yield of Rice” was conducted during the kharif season of 2019 and 2020 at the College Farm, Bapatla. The experiment was laid out in strip-plot design with three replications. The results revealed that among crop establishment methods, conventional tillage registered highest plant growth parameters at harvest like plant height (125.6 and 125.9 cm), number of tillers m-2 (423.6 and 426.9), plant dry matter (13304 and 13443 kg ha-1) and yield attributes i.e. the number of panicles m-2 (302.6 and 305.3), number of grains panicle-1 (219.3 and 225.3), grain (5870 and 5916 kg ha-1) and straw yield (8049 and 8000 kg ha-1) and was found statistically at par with dry seeding on puddled soil and significantly superior over rest of the treatments. Among nitrogen management, growth parameters at harvest i.e. plant height (125.9 and 128.0 cm), number of tillers m-2 (427.2 and 429.3), plant dry matter (12390 and 12503 kg ha-1) and yield parameters i.e. the number of panicles m-2 (284.9 and 289.6), number of grains panicle-1 (210.4 and 215.8), grain (5650 and 5699 kg ha-1) and straw yield (7783 and 7526 kg ha-1) the highest were recorded with the application of 50% STBN through fertilizer + 50% N through cured poultry manure (N5), which was found statistically at par with 75% STBN through fertilizer + 25% N through cured poultry manure (N4) and significantly superior over other treatments.
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Growth and productivity of pearl millet are majorly governed by climate and adopted field management practices viz. nutrient, water, weed, etc. Weeds are undesirable plants both spatially and temporally which grow in close association with the crop competing for light, moisture, spaces, and nutrients. Studies indicated that the losses due to weeds were higher compared to other crop pests, thus posing a serious threat to national food security. In this context, adopting the right and efficient method of weed control is essential to achieve the yield potential of the crop. The manual hand weeding method of weed management, although efficient, is extremely strenuous and time-consuming. Moreover, the unavailability of labor is another serious drawback of this method. Besides, cultural, mechanical, and biological methods to do not ensure complete weed removal at critical stages of the crop-weed competition, especially during bad weather conditions. Hence, chemical control is the only efficient alternative left. However, selection of crop dosage, crop stage, and variety through proper understanding of mode and mechanism of action of herbicide determine its efficiency. This review mainly focuses in providing a clear understanding of the right dose and crop stage for scheduling different herbicides solely or integrated with other methods targeting efficient weed management in pearl millet.
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- Common protein, 14 kDa was found in all of the isolated mucus challenged.
- Protein profiling of mucus after 4 hours being challenged shows the best variations from the region 14-101 kDa.
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The twenty four genotypes of rice (Oryza sativa L.) were evaluated for genetic variability, heritability, genetic advance, correlation and path coefficient analysis considering seventeen quantitative traits. The analysis of variance showed that genotypes differed significantly for all the seventeen traits studied and it is clear from the investigation that the traits like spikelet/panicle, sterile spikelet/panicle, grain weight/panicle exhibiting highest values of phenotypic and genotypic coefficient variation, heritability and genetic advance. Correlation and path analysis study revealed that the traits viz., days to maturity, plant height, effective tillers/plant and spikelet fertility percent demonstrated greater positive direct effect and significant positive correlation with grain yield/plant indicating the usefulness of these trait in selection for enhancing the grain yield.
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Exopolysaccharide producing fungal cultures were screened from the soil samples collected from New Vallabh Vidyanagar, Dist. Anand, Gujarat (India). The isolates designated as SGMP1 and SGMP2 were found to be significant producers of exopolysaccharide (EPS). The present study shows optimization, characterization and certain applications of EPS produced by selected isolates. The isolates SGMP1 and SGMP2 showed a maximum production of EPS 20.5 ± 0.85 g/l and 7.5 ± 0.4 g/l respectively with supplementation of 2% glucose and starch. Yeast extract was used as a nitrogen source at a concentration of 2% (w/v). The maximum production of EPS 7.5 g/l was obtained for SGMP2.The FTIR analysis of EPS showed the presence of polysaccharides, carboxylic acids and lactone. The fungal EPS showed antimicrobial and antioxidant properties. The EPS produced by the fungal isolate showed 99 % flocculating activity and could also act as an emulsifier. Furthermore, the fungal isolates SGMP1 and SGMP2 were able to remove Al+3 and Fe+3 up to the 600 mg/l concentration which suffices the role of EPS in bioremediation of heavy metals.
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An efficient selection and plant regeneration protocol for biolistic gun transformation using leaf derived callus of Coleus forskohlii has been developed. Highest regeneration frequency 90% with 50 shoots per callus clump was obtained on Murashige and Skoog (MS) media supplemented with benzylaminopurine (BAP) 2.0 mg L-1 + naphthalene acetic acid (NAA) 0.5 mg L-1 The rate of shoot multiplication was increased with each subculture. Rhizogenesis was obtained on the same media composition. The in vitro raised plants were established successfully in sand and cocopeat (1:1). Callus of C. forskohlii was bombarded using biolistic gun with pABC plasmid DNA which contains β-glucuronidase (GUS) reporter gene and Arabidopsis thaliana white brown complex homologs (AtWBC19) as selectable marker gene. Kanamycin in the shoot induction medium was compared qualitatively and quantitatively for its efficiency as a selection agent for the selection and regeneration of transgenic plants after biolistic gun transformation. Kanamycin levels at or above 50mg L-1 completely inhibited growth of untransformed shoots. The integration of selectable marker gene GUS and AtWBC 19 into the genome of transgenic plants was confirmed using isoenzymatic GUS assay and polymerase chain reaction (PCR) respectively. These results pave the way for the transformation of Coleus forskohlii with desirable genes.
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Forty samples (10 kulfi, 10 branded ice cream, 10 softy ice cream and 10 ice milk) were subjected to standard plate count, coliform, salmonella and Staphylococcus aureus count. The mean standard plate count for kulfi, ice cream, softy and ice milk, were 3.723±0.125, 1.277±0.128, 4.277±0.112 and 5.667±1.410 respectively. The coliform and salmonella were negative in branded ice cream samples. A total of 7 samples of kulfi, ice milk and softy ice cream showed positive for staphylococcus aureus. Since the bacteriological quality of frozen dessert are poor in the study area, precautionary measures have to be taken in production as well as post-production period up to the consuming in order to prevent food poisoning.
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There is an increasing need to describe the growth characteristics of algae exposed to polycyclic aromatic hydrocarbons (PAHs) because of occurrence of PAHs in lakes is known to deleteriously affect the growth of microorganisms. This study explored the chronic effect of different doses of three ring structure polycyclic hydrocarbon Acenapthene on the growth of two microalgal species and one cyanobacterial species. C. vulgaris, D. subspicatus and Scytonema sp. cultivated in the medium with different concentration of PAH and its affect was investigated during increasing 4, 8, 12 and 16 Days of exposure. The growth of Chlorella vulgaris, Desmodesmus subspicatus and Scytonema sp. was adversely affected by Acenapthene. The results indicated that the increased concentration of Acenapthene negatively impacted on chlorophyll content, carotenoids, phycobilliproteins, carbohydrate, amino acids, proteins, nitrate reductase, succinate dehydrogenase and glutamate synthetase except phenol . However, the raise in Phenol content was observed during the incubation period. Moreover, a high significance correlation (F>0.05) existed between different metabolites, pigments and enzymes which was statistically confirmed by Two Way Analysis of variance (ANOVA).
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This study was conducted in Tikamgarh district of Bundelkhand, Madhya Pradesh, India to spatially delineate the groundwater potential zones using the integrated RS-GIS and MIF techniques. To do so, eight major biophysical and environmental factors like drainage density, geomorphology, geology, lineament density, land use/land cover, rainfall, slope and soil were considered. All the factors and their features have been assigned weights according to their relative importance and their normalized weights were calculated using the multi influence factor technique. Groundwater potential zoning map has been prepared through weighted overlay model in GIS environment after integrating all the thematic layers. The entire district has been classified into five different groundwater potential zones –Very Good, Good, Moderate, Poor and Very Poor depending on the likelihood of availability of ground water. Greater portion of the study area (40.60%) fall within the poor potentiality zone. About 3.10% and 11.54% of the total area fall under the very good and good potential zone respectively. 38.60% of the total area comes under the moderately potentiality zone. Only 6.16% of the total area fall under the very low potential zone. It shows that the applied technique produces considerably reliable results for this study which may facilitate the decision makers to formulate an effective plan for the study area.
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Selection of appropriate genotypes based on characters that show good genetic strength is a very important tool in crop improvement since selection could not be carried out based on all characters. Study of interrelationship and association of characters is essential to identify the variables which show maximum relationship with others. Correlation analysis was carried out presently in the case of 12 morphometric characters in vetiver (Vetiveria zizanioides) so as to study the relationship between them. The present study revealed varying degrees of interrelationship between the morphometric characters studied. Character association was also studied so as to group the characters based on gene sharing and to identify the lead characters that could be used in further breeding programmes. Plant height showed the highest factor loading followed by leaf breadth, root length, leaves per tiller and fresh root weight showing their higher contribution towards the variability of the population and their usability in breeding programmes as lead characters.
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The effect of ethephon on colour changes of Dusehari mango (Mangifera indica) fruits during ripening was examined. Physiological mature fruits were given post harvest dip of ethephon solution @ 0, 200, 400, 600, 800 and 1000 ppm for five minutes. Treated fruits were packed in CFB boxes placed at ambient conditions for ripening. Fruit peel and pulp colour was determined after 48, 72, 96, 120 and 144 h after ripening treatments using Hunter Lab scale. Results revealed that all ethephon treatments enhanced colour development as compared to control. The luminosity of peel increased with increase in concentration of ethephon as well as with ripening period. The greenness of peel as reflected by ‘a’ values decreased with ripening treatments and period. However ‘a’ value for pulp increased with development of redness of tissue. The fruit peel developed yellowish colour with ethephon treatments as evidenced by increase in values of ‘b’. The effect of ethephon on colour changes at higher doses (800 ppm and 1000 ppm) was non-significant after 120 h of ripening period.
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Field experiments were conducted during the wet season of 2012 and 2013 at farmer’s field of village Binuria, Sriniketan, Birbhum, West Bengal, India with rice variety ‘Swarna’ (MTU 7029) to study the effect of bensulfuron-methyl + pretilachlor and other herbicides on growth of different weed species and productivity of transplanted rice. Twelve treatments in the experiment were assigned in a randomized block design with three replications. Results revealed that rice was infested with three categories of weeds viz. grasses, broadleaved and sedges. Cynodon dactylon and Paspalum distichum among the grasses; Fimbristylis miliacea, among the sedges and Ludwigia parviflora and Commelina nudiflora among the broadleaved weeds were predominant throughout the cropping period. Bensulfuron-methyl 0.6%+ pretilachlor 6% at 60+600 g ha-1applied at 3 DAT completely controlled the grasses, broadleaved and sedges at 30 and 60 DAT except Cynodon dactylon and Paspalum distichum. However, the density, as well as dry weight of both the species were significantly reduced. Metsulfuron methyl + chlorimuron-ethyl (Almix) + azimsulfuron at 4+35 g ha-1 at 15 DAT was also quite effective in controlling broad spectrum weeds. Lower values of weed density, total weed dry weight and higher values of herbicide efficiency index and yield of rice were registered with application of bensulfuron-methyl 0.6%+ pretilachlor 6% at 60 + 600 g ha-1 at 3 DAT followed by metsulfuron methyl + chlorimuron-ethyl (Almix) + azimsulfuron at 4+35 g ha-1 at 15 DAT. Weed infestation resulted in grain yield reduction of rice to the tune of 40% Application of bensulfuron-methyl 0.6%+ pretilachlor 6% at 60+600 g ha-1 at 3 DAT or metsulfuron methyl + chlorimuron-ethyl (Almix) + azimsulfuron at 4 + 35 g ha-1 at 15 DAT appeared to be the most promising for managing mixed weed flora and obtaining higher yield of transplanted rice in the lateritic belt of West Bengal, India.
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Physiological and biochemical changes during fruit growth, development and maturity of eleven genotypes of guava fruit were studied at 30, 60, 90, 105, 120 and 127 days after fruit set (DAFS). Fruit weight, length and diameter of guava fruit increased continuously from the initial stage of fruit development till maturity and ripening in all the genotypes. The increases in fruit weight and diameter were comparatively more between 30 to 60 DAFS and 90 to 127 DAFS than 60 to 90 DAFS where the increase in fruit weight and diameter was slow in most of the genotypes. However, RCG-1, RCG-2 and RCG-3 showed the continued rapid increase in fruit weight upto 120 days and thereafter the rate of increase was quite slow. A gradual increase in total soluble solids (TSS) was observed in all the genotypes throughout development and ripening stage of the fruits. However, the amount of total titratable acidity increased steadily in the beginning upto 105 days after fruit set in most of the genotypes except RCG-1, RCG-2 and RCG-3 which showed upto 90 days only and afterwards there was a continuous reduction till ripening. The fruits showed continuous and progressive increase in TSS: acid ratio from 30 DAFS till maturity and ripening in all the genotypes except RCG-11, RCGH-1 and RCGH-7 that showed from 60 DAFS. Based on the present findings, days taken from flowering to harvest maturity (>105 days), TSS (>9.50%) and TSS: acid ratio (>15.00) were some of the parameters for judging the maturity indices of genotypes like RCG-1, RCG-2 and RCG-3. Similarly, days taken from flowering to harvest maturity (>110 days), TSS (>10.50%), TSS: acid ratio (>21.00) and fruit skin colour (whitish green) for RCGH-1 were some of the parameters for judging the maturity indices. Whereas, other genotypes were also exhibited the variation for days taken from flowering to harvest maturity (>120 days), skin colours, TSS (9.20-11.00%) and TSS: acid ratio (13.50-23.50.
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Weaning mix was developed from underutilized crops of Uttarakhand (finger millet, barnyard millet, black soybean, amaranth grain). Malting and fermentation were adopted as ways of improving cereal protein quality and decreasing anti-nutritional property and probiotic weaning mix was produced using probiotic strain Lactobacillus plantarum. Box-benkhen design of response surface methodology was used to design the experiments design for three variables with three levels [blend ratio (cereals : legume:: 50:50, 60:40, 70:30), fermentation time (12 h, 24 h, 36 h), inoculums concentration (1%, 3%, 5%] and four responses (protein, tannin, water absorption capacity, water absorption index). The probiotic fermentation resulted in favourable changes in nutritionl profile of weaning mix resulting 48.2% increase in protein and 92.3% decrease in tannin content. The optimized set of independent variables (cereals (FM+BM): legume: 70:30 fermented for 25 h with 2.9% inoculum concentration) obtained after statistical analysis, was used to develop final probiotic weaning mix.
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Morphometric analysis of a hilly watershed was carried out using GIS. The drainage map generated from the Survey of India toposheets was used for morphometric analysis of the watershed in terms of stream order, stream length, bifurcation ratio, relief ratio, drainage density, stream frequency, drainage texture, form factor, circulatory ratio, elongation ratio, infiltration number and ruggedness number. The Um Shipra watershed is a fifth order watershed having dendritic drainage pattern with high drainage density (6.22 km.km-2). The logarithmic plot of the stream length versus stream order showed a linear relationship indicating the watershed has developed over a homogeneous rock material. The mean bifurcation ratio of 1.71 indicated absence of strong structural control on the drainage pattern and that the watershed was structurally less disturbed. The number of streams belonging to the order I, II, III, IV and V were found to be 327, 147, 78, 45 and 46 respectively. Lower values of form factor (0.19), circularity ratio (0.29) and elongation ratio (0.49) suggested that the watershed has elongated shape with lower peak flows for longer duration. The ruggedness number having relatively higher value implied that the area has rugged topography which is prone to soil erosion. Higher values of stream frequency and drainage density indicated that the watershed has high runoff potential despite having lower peak flow creating a good scope for surface water resource development. The results obtained can serve as a useful input for developing soil and water resources conservation and management plan on a watershed basis.
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- Farmyard manure is an effective and efficient source of nutrients to soil microorganisms as well as to plants comparative to all other manures.
- Farmyard manure plays an important role in the remediation of pesticides, herbicides, and heavy metals along with increasing nutrient supply in the soil.
- Apart from improving nutrient content, farmyard manure also improves soil’s physical, chemical, and biological properties.
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Arachis hypogaea L. (The peanut) is an important oilseed crop in tropical and subtropical regions of the world. This species belongs to the subfamily Fabaceae and family Leguminosae. Different parts of the plant such as leaves and seeds are used for many purposes in India. Next-generation sequencing technology (NGS) such as RNA-seq has provided a powerful approach for analyzing the Transcriptome accurately and cheaply. This study is focus on gene expression study of RNA-seq of Arachis hypogaea L. (The peanut); Three SRA files of BioProject ID 243319 downloaded from NCBI database and genome of Arabidopsis thaliana was considered as reference genome for gene expression study. Data analysis carried out with many Bioinformatics tools such as TopHat2, Cufflinks, Cuffmerge, Cuffcompare and Cuffdiff. CummeRbund tool was used to manage, visualize and integrate all of the data produced by a Cuffdiff tool for gene expression analysis. These data reported in the current study will serve as a valuable genetic resource of the Arachis hypogaea L..
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Azo dyes are a chief class of synthetic colorants, which are released by the majority of the textile industries. The effluents of dyes disrupt the ecosystem so removal of these dyes is major concerned by using cost-competitive and eco-friendly method. The present study was aimed to study the decolorization efficiency of the textile azo dyes by Comamonas acidovorans MTCC 3364 and optimize the environmental condition for maximum decolorization and degradation of Reactive Black B (RBB) dye. Optimization of various environmental parameters like pH and temperature was studied in which maximum decolorization was obtained at 37°C, pH 7.0 under static condition within 24 hours. The addition of co-substrates lactose and yeast extract increased the rate of decolorization. The bacterial strain was able to decolorize high concentration of RBB dye (1 g l-1) up to 8th cycle. Vanillin was added as a redox mediator which showed the highest rate of decolorization (1.062 mg l-1 h-1) and thiourea was added as an inhibitor, which showed highest inhibition (0.246 mg l-1 h-1). Incubation of dye with a non-growing (free) cells and dead cells resulted in removal of dye from the buffer, indicating the biosorption and adsorption mechanism. Immobilization cell studies revealed that activated immobilized cell preparations decolorized RBB dye up to 10 cycles showing remarkable operational stability. The degradation analysis of RBB was further confirmed by HPTLC and FTIR techniques.
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The molecular study of seventeen genotypes of pigeonpea using 20 random amplified polymorphic DNA (RAPD) markers has been reported. A total of 179 loci were scored corresponding to an average of 8.95 loci per primer with 123 bands showing polymorphism (65.42%).Very low level of polymorphism in cultivated pigeonpeagermplasm had been earlier reported which was corroborated by many pigeonpea workers indicating the normal genetic base existing in this crop (Odenyet al. 2007). The average number of polymorphic loci obtained per primer (Assay Efficiency Index) was found to be 6.15. Jaccard’s similarity coefficient ranged from 0.52 to 0.77 and the marker index value for pooled RAPD was found to be 11.65. A dendrogram constructed based on the UPGMA clustering method revealed two major clusters. Cluster-I comprised of 5 cultivars whichwas further differentiated into two sub-clusters. The cluster-II included remaining twelve cultivars. Genotypes that are susceptible to fusariumwilt of pigeonpeaviz., GT-1, GT-100, GT-101, GT-102 and BANAS were closely related and they formed one cluster. It also revealed that genotypes viz., AGT-2 and AVPP-1 were closely related and formed one cluster whereas viz., T-15-15, LRG-41, C-11, BDN-2 and ICPL-87 were closely related and formed another cluster. The dendogram showed that genotypes that are resistant to fusarium wilt of pigeonpeaviz., BSMR-853, WRGE-119, ICPL-87119, ICPL-84060 and ICP-8863 were related genotypes and they formed another cluster. The study reiterated that RAPD can be efficiently used for discriminating resistant and susceptible pigeonpea genotypes.
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Phosphorus availability is increased through the use of phosphate solubilizing bacteria for enhancing the forage yield and improving the quality of berseem fodder. A field experiment was conducted in the fodder farm of West Bengal University of Animal and Fishery Sciences, Belgachia during rabi, season 2013-14. The crop was sown with inoculated (I1) and un-inoculated (I0) seeds of berseem (Trifolium alexandrinum L.) of variety warden and was given phosphorus fertilizer at the levels 40 (P1), 60 (P2), 80 (P3) and 100 (P4) kg P2O5 ha-1 in the form of SSP in RCBD with three replications in plots of net size 6 m X 2 m. PSB inoculation significantly increases green forage and dry matter yield by increasing plant height, no. of branches, leaf-stem ratio, etc. All the quality traits except ash content and dry matter percentage were significantly affected by PSB inoculation. Higher green forage yield (320.4 qt ha-1), dry matter yield (39.2 qt ha-1), crude protein yield (7.89 qt ha-1), crude protein percentage (19.28%), ethyl extract (3.32%) and nitrogen free extract (41.75%) were recorded from the plots inoculated with PSB. Application of phosphorus fertilizers significantly influenced the green forage and dry matter yield of berseem, leaf-stem ratio, etc. though plant height and no. of branches were not-significant. All the quality parameters i.e. CP, CF, EE, NFE, except ash percentage were significantly influenced by phosphorus application. Best results were obtained with 80 kg P2O5 ha-1 in all the cases. Regarding interaction effect, higher yields of better quality green forage of berseem were obtained in I1P3 i.e. inoculation with PSB with phosphorus application of 80 kg P2O5 ha-1.
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A field experiment entitled “Weed Dynamics of Hybrid Rice under the Influence of fertilizer Levels and Weed Management Practices” was conducted during the Kharif season of 2017 at the Research Farm, TCA, Dholi, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur (BIHAR). The experiment was laid out in a split-plot design with twelve treatments. Among different levels of fertilizer, application of 100 % RDF recorded a minimum number of weeds/m2 (58.36/m2), weed dry weight production (73.12 g/m2), and weed growth rate (0.024 g/m2/day). In the case of weed management practices, Hand weeding (twice) was found to be the most efficient weed control (71.32%), a minimum number of weeds/m2 (25.11/m2), weed dry weight production (21.12 g/m2) and weed growth rate (0.011 g/m2/day) but the minimum weed index (45.87%) was observed in weedy check.
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The present research revealed the study of genetic divergence and genotype (G) main effect and genotype by the environment (GE) interaction (G × GE) bi-plot analysis for multi-environmental trial data using yield data of three years. Since, genotypes were planted in 2017 in two dates like early and lates own condition hence, there was very slight differences in their yield so both the environments come together as compared to third environment (2018) which for from the two locations of year 2017. The objective of this study was to determine the effects of genotype, environment and their interaction on grain yield and to identify stable barley genotypes. The field experiment comprising of 69 barley genotypes laid out in a Randomized Block Design with three replications during Rabi 2016-2017. The extent of genetic variability, association between yield and yield components, frequency distribution of 25 top best genotypes in response to yield in three different environments, yield stability analysis and genetic diversity was studied. For stability analysis yield data of current year for one location and yield data of two locations/environments of previous year have been used. Field observations were recorded on six important characters days to 50% flowering, days to maturity, effective tillers per plant, plant height with awn, plant height without awn and 1000 grain weight (g). The result of bi-plot analysis using yield data of three years revealed that AXIS1 explained 57.6 per cent variation while AXIS2 was explained 31.07 per cent variation. Since, genotypes were planted in 2017 in two dates like early and late sown condition hence, there was very slight differences in their yield so both the environments come together (Figure1) as compared to third environment (2018) which for from the two locations of year 2017. Our result indicate that line G69 recommended as most stable genotype for yield potential and stability whereas lines G9, G55, G67 and G68 were consider as superior genotypes.
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Various models of sustainable indigenous farming practices exist among the tribal population, especially among tribes of the North East Region of India. These practices are often considered as an alternative to old age practices of shifting cultivation which has a negative impact on the natural ecosystem in many ways. This paper focuses on the practices and importance of the Zabo farming system, an indigenous farming model practiced by the Naga tribe in Nagaland. The word “Zabo” means impounding of water in the local dialect. Zabo farming comprises integrated agricultural activities such as forest land for silviculture, water harvesting, animal husbandry, and paddy cultivation along the slope of the hills.
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Proper basal application of phosphorus has a tremendous influence on the kernel yield, pod yield and other yield contributing characteristics. In view of this, an experiment was conducted during summer season (February to June) of 2018 at Bagusala Farm (23o39’ N latitude, 87o42’ E longitude) of M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi, Odisha to find out the effect of various phosphorus levels on yield attributes and yield of groundnut. Seven levels of basal application of phosphorus rates, namely, 0 (control), 20, 40, 60, 80, 100, and 120 kg P ha-1 were tested in randomized complete block design (RCBD) design with four replications. The experiment revealed that the basal application of P2O5 at the rate of 100 kg ha-1 registered superior performance in expression of yield attributes like number of pods per plant, number of kernels per plant, kernel weight per plant and yield of groundnut. It may be concluded that to obtain higher productivity of groundnut during summer season in sandy loam soils of south Odisha, basal application of P2O5 @ 100 kg ha-1 is recommended.
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Aonla has the hallowed position in Ayurveda. Aonla is native to India and also grows at tropical and subtropical region like India, Pakistan Sri Lanka and Uzbekistan. In India Uttar Pradesh has the highest area under cultivation and production of Aonla. Area under Aonla orchard in Pratapgarh district of Uttar Pradesh is about 13000 hectares (Nitin Kumar et al.). Aonla is mostly used in making murabba, pickles and candy etc. Traditional method for making Aonla murabba is hygienic because for making murabba, Aonla has to be pricked first and that pricking method of Aonla is drudgery prone and most of the workers are injured by hand pricking method Also it takes too much time for pricking (Ganvir et al.). Till now Aonla is pricked by hand and power operated machine. Hand pricking of Aonla causes injury to the hands of the farm women and is a tiresome and slow process with low output capacity whereas the power operated machines are very costly and out of reach of medium and small farmers. Thus, to overcome these problems and keeping in mind the benefits of small and medium farmers a low cost, pedal operated aonla pricking machine suitable for farm women has been developed in the Department of Farm Machinery and Power Engineering, SHUATS, Allahabad. This machine is paddle operated with an output capacity of 3-3.5 q/h. No injury is caused to the farm women operating the machine. However the machinen can be operated both by farm women as well as men farmers. Hopper of machine is containing 66 no. of Aonla at a time. Floor area used by this machine is 80 × 80 cm. Pricking needles, sieve plate and fruit plate used in this machine is made of stainless steel because of corrosion. Needles used in this machine are of 2 inches. 756 no. of needles are used in this machine. Maximum depth of pricking in Aonla is 7mm and max.dia of needle is 8mm. This machine is efficient for small and medium farmers
Abstract :
Keratins are insoluble proteins from feathers, wool, silk, collagens, elastin, horn, hair and nail. They are not easily degraded by common proteolytic enzymes like trypsin, pepsin and papain.The resistant property of these compounds are due to their disulphide bonds, hydrogen bonds, salt linkages and cross linkages and hydrophobic interactions. Actinomycetes are known to digest keratins by synthesizing specific class of extracellular enzymes called alkaline thermo stable proteases which degrade keratin into small peptides that can be utilized by cell. Alkaline protease producing thermophilic actinomycete strain was screened from hot water spring of Tulsishyam Gujarat and was identified as Saccharomonospora viridis SJ-21 on the basis of colony characters, biochemical activity, spore nature, growth patterns and pigmentation and 16 S r RNA sequencing.The partially purified protease of Saccharomonospora viridis SJ-21 and the isolate itself were employed to check feather degradation. The feathers were degraded successfully within 72h at 45ºC. The degraded samples were analyzed for release of various amino acids by HPLC- Fluorescence with post column Derivatization. The aminoacids released were tyrosine, phenylalanine, leucine, valine, cysteine, arginine, methionine, etc. S. viridis SJ-21 is found having a significant keratinolytic activity and may serve dual purpose for degradation of poultry waste and production of amino acid rich feed supplement. The protein rich, concentrated feather meal can also be used for organic farming as semi-slow release, nitrogen fertilizer.
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Identification of temporal variation of rainfall trends provides useful information for sustainable planning and management of water resources in a river basin particularly during flood and drought periods. The present study was conducted to determine trends in the annual and seasonal total rainfall over Parambikulam Aliyar sub basin of Tamil Nadu using 30 years (1982-2012) monthly rainfall data at eight rain-gauge stations. The procedure is based on the nonparametric Mann-Kendall test for the trend and the nonparametric Sen’s method for the magnitude of the trend. The maximum increase in rainfall was found at Chinnakallar with an annual rainfall of 90.51 mm/year and the maximum reduction in rainfall of -8.60 mm/year was found at Topslip during South West monsoon. Significant positive trend were observed at Weaverly station during North East monsoon rainfall series and significant negative trend has been noticed in the South West monsoon of Topslip.
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Mungbean is an important legume crop due to its short behavior, nutritious and green mannuring nature. But it is highly affected by several diseases and other factors, which reduces the yield and seed quality. Mungbean yellow mosaic virus (MYMV) and Cercospora leaf spot (CLS) are the major disease of mungbean. Therefore, the present study was conducted to characterize the 34 genotypes of mungbean against MYMV and CLS disease during Kharif 2012 under two different date of sowing. The present study indicated that the none of the genotype was found immune, resistant to MYMV and CLS, whereas five genotypes namely DMS 03-17-2, IPM 2K-14-9, P 1131, DMS 02-11-4 and IPM 99-1-6 were found with moderately resistant reaction. These genotypes may be added in breeding program for improvement of mungbean.
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Field evaluation of several fungicides including new molecules was undertaken for the management of purple blotch disease of onion caused by Alternaria porri(Ellis) Cif. The experiments were conducted during kharif of 2012 and 2013 using susceptible variety Arka Nikethan.Cymoxanil 8% + Mancozeb 64% WP @ 2500 ppm and Mancozeb 70% WP @ 2500 ppm were effective in reducing the disease severity by 54.86 and 52.88 % over untreated control. However, Mancozeb 70% WP and Cymoxanil 8% + Mancozeb 64% WP recorded the maximum yield of 39.71 and 37.06 t/ha and obtained benefit cost ratio of 33.85 and 20.67. Thus these two fungicides can be recommended for the effective and economical management of the disease
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The contamination of soil and water by dye containing effluents is the major and most important environmental problem. The removal of 10 different synthetic textile dyes using white rot fungal isolate AGYP-1 was investigated. The screening of decolorization using solid and liquid media demonstrated an effective removal of Reactive Red M5B by the isolate. Laccase and MnP were found to be major enzymes involved in the decolorization. The dye decolorization efficiency of the isolate was further improved by optimizing various physico-chemical parameters. The isolate was capable to decolorize 100 mg l-1 dye at pH 5.0 and 30oC under shaking condition. The supplementation of maltose (20 g l-1) and gelatine (2.5 g l-1) improved the decolorization rate by 1.6 times along with 10.28 and 18.66 times higher production of laccase and MnP. A significant decolorization of 500 mg l-1 of the dye was achieved by the isolate AGYP-1. The degradation of Reactive Red M5B was confirmed by Uv-visible spectrophotometric and HPTLC analysis. This suggests the potential application of the isolate AGYP-1 for the treatment of dye containing industrial effluents.
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- Guanine nucleotide binding proteins (G- proteins) are cytosolic proteins that are present in trimeric complex with α, β & γ subunits in plants.
- They act as signal transducers that regulate multiple signaling pathways in eukaryotes.
- Heterotrimeric G- proteins play vital role in plant growth and development in many plant species.
- Besides roles in plant growth, they are also important for mitigation of abiotic (salt, drought, ozone, temperature) stresses and plant defense responses by inducing different mechanisms.
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A total of seven biocontrol agents with known antifungal activity against other soilborne fungal pathogens were screened for their antagonistic potential against Sclerotium rolfsii Sacc, the causal agent of stem rot disease of groundnut (Arachis hypogaea L.) by dual culture assay. Among the various biocontrol agents tested Bacillus subtilis strain G-1 was the most effective in inhibiting the mycelial growth of S. rolfsii and recorded an inhibition of 28%. Groundnut seeds when treated with B. subtilis G-1 showed significant increases in root length, shoot length and seedling vigour. A talc-based powder formulation of the highly effective strain, B. subtilis G-1, was developed and its efficacy in controlling groundnut stem rot was determined under greenhouse conditions. The results indicated that seed treatment with the powder formulation of B. subtilis G-1 alone effectively reduced the incidence of stem rot and increased the pod yield; but combined application through seed and soil increased the efficacy. Seed treatment and soil application with B. subtilis G-1 reduced the stem rot incidence from 80 per cent (with non-bacterized seeds) to 5 per cent. When the treated seeds were sown in soil, the antagonist moved to the rhizosphere and multiplied well in it. These results suggest that B. subtilis G-1 is an effective bioagent against stem rot of groundnut. Further studies are required to assess its efficacy in controlling stem rot of groundnut under field conditions.
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Ohmic heating is now regarded as highly attractive advanced technique for food processing wherein electric current is passed through the liquid particulates foods with primary purpose of heating them. The success of ohmic heating depends on the rate of heat generation in the system, the electrical conductivity of the food, method by which the food flows through the system and composition of the food. In this study, the ginger paste at different salt treatment (0-2% w/w) was heated in a laboratory scale ohmic heater by applying voltage gradients (5–13 V/cm). The temperature dependent electrical conductivity was obtained at different time interval of 0, 5 and 10 minute at different temperatures (30-60˚C). Bubbling was observed above 70˚C especially at high voltage gradients. The electrical conductivity measured in terms of point and bulk electrical conductivity. Point electrical conductivity was greater than bulk electrical conductivity. The point and bulk electrical conductivity values were in the range of 4.41 to 6.63 and 3.75 to 5.87 mS/cm respectively.
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History of mankind has witnessed transformation in form of industrialization, urbanization and motorized transport in the past. These all had made the life easier for human but these also led to increase in level of pollutants in the atmosphere. These pollutants have cascading impact on agriculture. The impact of some of the major pollutants such as SO2 , NOx and ozone is in the form of production of ROS, reduced photosynthesis and energy metabolism. The aerosol and particulate matter pollution also leads to reduced transpiration which raises the canopy temperature and also disturbs the water and nutrient uptake by the crop plants. To date most of the pollution related studies, especially in developing countries, are restricted to its impact on urban areas and human health. It is needed to extend these studies to impact of air pollution on agriculture. In this paper we have discussed the various mechanisms through which the pollutants act on the crop plants and their impact on yield.
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Conventional agricultural practices rely on the immense application of agrochemicals that show detrimental effects on soil biota. Negative impacts on soil microbiota and enzymes that involve in nutrient cycles hinder nutrient availability. Application of plant growth-promoting microbes such as Trichoderma spp. can evade these hurdles by improving soil biodiversity and performance of the crop. A pot culture experiment was conducted during two consecutive years (2018 and 2019) to figure out the effect of different doses of fertilizers and seed bio-priming with Trichoderma asperellum BHUT8 in sunflower (PAC334) on soil chemical properties. Results showed that the initial soil reaction was slightly alkaline that tend towards neutral with seed bio-priming. The electrical conductivity of soil in both seasons varied randomly among imposed treatments. Soil cation exchange capacity, which permits the soil to hold all essential nutrients, was enhanced 4% with the supply of 70% recommended dose of fertilizer and seed bio-priming. Soil available nitrogen, phosphorus, and potassium were found maximum in the treatments supplied with Trichoderma through seed bio-priming. Inoculation of Trichoderma showed positive effects on soil chemical properties and reduced the requirement of inorganic fertilizers.
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- The beel has a rich fish biodiversity and important for fisheries resources in the middle-east part of Bangladesh. About 51 species of fish under 7 orders and 19 families were found. Fifteen fishing gears (8 major categories) are used for fishing by the fishermen.
- Now-a-days, biodiversity of fish was decreased due to over fishing, water pollution, heavy siltation, rapid urbanization and intervention of human.
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The colour of sugar free biscuit was recorded by hunter colour flex and the L*, a*, b*, value was 46.40, 12, 20.29, respectively. Developed sugar free biscuit was rich in calcium and magnesium and their concentration were observed 294.8mg/100g and 451.5mg/100g respectively by ion chromatography. Atomic absorption spectroscopy of developed sugar free biscuits was also performed for mineral analysis and reported that it contains iron (1.93mg/100g), copper (0.065mg/100g), and zinc (0.325 mg/100g). Fortified sugar free biscuits was also analysed by rapid visco analyser for pasting properties of starch, gelatin ionization of starch. The shelf-life of sugar free biscuit was lower at 37oC than at 10oC and 25oC. The HMF (Hydroxy Methyl Furfural) concentration which indicates the mallard reaction at a higher temperature and with increasing days of storage, the HMF concentration was also increased. The HMF increased to 6.1, 6.3, 6.5 μmol/100g at 10, 25, 37oC respectively after 30 days from 5.1 mol/100g which was the HMF value initially. The TBA (Thiobarbituric acid) also increased the most at 30 days storage at 10 oC as compared to 25 oC and 37oC, TBA value was 0.254, 0.265 and 0.286 respectively. The same result was seen in moisture content 5.1, 5.25., 5. 5% at 10 oC, 25 oC, 37 oC respectively from 4% of moisture initially content. The Microbiological studies concluded that the product was safe with no yeast and mould growth and coliform was also not detected. Only total plate count after 30 days was found 3×10 CFU/ml. The product was found safe for consumption even after 30 days of storage.
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- Five indica rice varieties were used for callus induction and regeneration
- MS +2.0 mgl-1 2,4-D + 0.5 mgl-1 kinetin + 30 gl-1 maltose gave enhanced callus induction.
- MS + 2.5 mgl-1 BAP + 0.5 mgl-1 NAA + 1.0 mgl-1 KN gave the highest regeneration
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Kresoxim-methyl, a strobilurin fungicide, is a broad spectrum, foliar fungicide. Leaching studies conducted with kresoxim methyl and acid metabolite separately revealed that in column soil >90% of the kresoxim methyl undergo hydrolysis and changed into acid metabolite. Acid metabolite showed more leaching potential than the parent molecule. Residues moved to the lower soil depth with increasing amount of rainfall. Increasing the organic matter content of the soil by sludge amendment (5%) reduced the leaching potential of both the compounds. With the same amount of rainfall, leaching was found to be more under discontinuous flow than continuous flow treatment.
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Tomato is the second most important vegetable crop next to potato. As far as conservation of soil and water is concerned, drip irrigation offers the most practical and effective alternative to regular surface irrigation among all the irrigation technique known today in the world. Researchers throughout the world are kin to obtain the optimal flow rate through drip irrigation for overall development of crop. In this study, attempt has been made to analysis the growth rate and yield of tomato plant at various flow rate of drip irrigation, and to determine the effect of fertigation through drip irrigation on growth and yield of tomato. In this study “Samartha F1 hybrid” variety of tomato seed was selected and cultivated over the farm size of 6×5 m2. The selected farm area was divided into two sections i.e. fertigation section and non-fertigation section. Three rows having ten plants in each row was transplanted in both sections. Growth of tomato plants in term of height and canopy was measured and compared with different flow rates. The average increment in the height of tomato plants at flow rate of 2 L/hr, 4 L/hr and 8 L/hr were estimated as 68%, 60% and 52% respectively. Yield of tomato in terms of fruits was estimated for three different flow rates of 2 L/hr, 4 L/hr and 8 L/hr. The yield of tomato is optimal when drip irrigation with 2 litres per second has been used for irrigating the farm land. Significant effect of fertigation through drip irrigation has been found on growth and yield of tomato plants.
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A set of 91 diverse soybean accessions were analysed for 10 morphological traits with special reference to water use efficiency using carbon isotope discrimination (CID) technique. The coefficient of variation for CID values was found to be 3.36%. There is negative correlation between Δ13C values (CID values) and WUE. The genotypes which registered lower values of Δ13C are more water efficient than the genotypes with higher Δ13C values. The range of Δ13C values observed in this experiment are slightly lower than that reported in sugar beet (Δ13C 17.66‰ to 22.96‰), (Rajabi et al., 2009). Genotype UPSL309 has highest CID value (22.91‰) indicating low WUE and genotype DS9813 has lowest CID value (19.95 ‰) with high WUE. In present study randomly classified genotypes as high WUE (CID less than 20.5 ‰), medium WUE (CID between 20.6 to 22.4 ‰) and low WUE (CID above 22.5 ‰). There were 7 genotypes which were found to show high WUE, and 13 exhibited low WUE whereas, rests of the 71 genotypes were medium in WUE.
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Plants face to different changes in environmental conditions that keep on challenging its normal growth and acclimatization. Cereal crops play a key role in supplying food and energy to growing population and these crops are bare to substantial environmental changes causing inferior growth and performance. To overcome the abiotic stresses experienced by plants, several differential molecular and physiological responses were evolved that make the plants to mitigate climatic aberrations. Latest technological developments in genetic engineering as well as molecular breeding register a significant role in developing crop varieties and hybrids those are tolerant to environmental aberrations. Several Transgenes and their Quantitative Trait Locus (QTL) were invented and incorporated into crops for superior performances against abiotic factors in cereals like wheat and rice.
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Climate change as occasioned by environmental degradation has led to innovative thought on how to preserve natural resources while also deriving benefits. Mangrove destruction, saline water intrusion, decline in fish stock and reduced livelihoods were factors that led to the establishment of Kung Krabaen Bay development study centre and the Welu wetland both in Chanthaburi province. The two wetlands provide important benefits to the people that live around it as well as tourists. Through the absorption and processing of wastes, these wetlands help maintain environmental quality and safety while also maintaining a biological balance of carbon IV oxide and other green house gases. Shrimp farm waste is treated in Kung Krabaen bay. A synthesis of Provisioning, Regulating, Cultural and Supportive benefits of the two wetlands is presented. Management regime involves integrated approach (Kung Krabaen Bay) and a co-management approach (Welu wetland). Direct and indirect drivers of change are analysed with management capacity to effectively manage these drivers being examined. The rational use of the resources provided by wetlands is a key factor in their conservation. Recovery from overexploitation may take time but these wetlands are showing resilience and there is need to improve management regimes via international cooperation.
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Attempts were made to store the carotene rich pumpkin powder at 30 + 2°C & 62+5% RH and 7 + 1°C & 80+5% RH in aluminum laminated flexible pouch for the period of 180 days. The shelf life was determined on the basis chemical and microbiological analysis of stored powder at an interval of every 15 days. As the storage period was increased from 0 to 180 days, the carotene retention was found to decrease. More carotene could be retained (82.95%) when pumpkin powder was stored at 7°C as compared to 52.28% retention at 30°C when the stored for 180 days. Standard plate count of pumpkin powder stored at 7°C was found to be only 440 cfu / g at the end of 180 days of storage. Similarly, yeast and mold count observed at the end of 180 days storage was only 7 cfu/g. Coliform was found to be absent throughout storage. Pumpkin powder was found to be more stable upto only 75 days, if stored at 30°C. However, it can be safely stored for almost 180 days, if stored at 7°C.
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Mental retardation is a variable and heterogeneous manifestation of central nervous system dysfunction characterized by significant sub average intellectual functioning.In India the incidence of mental retardation is reported to be 2-3% of these 30% cases of severe mental retardation are genetically determined due to many reasons viz- chromosomal aberrations, X linked and subtelometric abnormalities and mutations in genes associated with nervous system function viz- TH ,COMT, MTHFR, PPP1R1B, MECP2. Tyrosine hydroxylase (TH) gene is located on chromosome number 11 and is coding for rate limiting enzyme in the synthesis of dopamine. Changes in TH gene expression or function influence the process or behavior modulated by dopamine, any mutation in TH gene modulate dopamine and its function. Catechol-o-methyl transferase (COMT) gene is located on chromosome number 22 and plays an important role in the metabolism of neurotransmitters. Low levels of COMT expression leads to mental retardation.The present study was carried out to study polymorphism in TH and COMT and its possible association with mental retardation. The detection technique includes isolation of DNA from peripheral blood of the mentally retarded patients of Surat and Anand regions of Gujarat state. DNA was isolated by standard phenol: chloroform method. PCR-RFLP was used for detection of polymorphism. Analysis of TH and COMT gene polymorphism in mentally retarded patients revealed that most observed genotype in normal as well as in mentally retarded patients is TT and HH for TH and COMT loci respectively.
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Castor (Ricinus communis L) is an important non-edible oilseed crop with diversified industrial usage. India is dominating in the production and productivity of castor. Thirteen inbred lines were studied for seed physical characteristics, oil quality, as well as fatty acid profile. Among the inbred studied, the maximum weight of 100 seed was 34.2 g, in JC-26, and maximum oil content was 51.3% in SKI-333. One hundred seed wt showed a positive correlation with % of kernel (r=0.472*) and seed oil content has positive correlation with kernel oil content (r=0.803**). Important oil characteristics for industrial use like specific gravity (g/cc) varied from 0.954 to 0.958 while the viscosity (cp) ranged from 604 to 626. The free Fatty acid as oleic acid was ranging between 4.33 to 6.02%. Among the fatty acid, the ricinolic acid was ranging from 83.93 to 87.02%, the minimum value was in 48-1 while the maximum value of ricinolic acid was recorded in DCS-9 inbred.
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Objective of this research work is to utilize EST- SSR markers for fibre quality traits to generate genetic diversity between tetraploid (Gossypium hirsutum) and diploid (Gossypium herbaceum and Gossypium arboreum) cotton species at molecular level. Twenty four (24) genotypes of cotton and thirty five (35) EST SSR primers for different fibre quality traits (fibre length, Lint percentage, Boll weight and fibre strength) were taken for this study. Almost all primers reveals amplification in both diploid and tetraploid cotton species which indicates that flanking primer sequences are conserved in both genomes of cotton. Thirty one (31) EST SSR primers generate good and enormous amplicon and produced a total of four hundred seventy eight (478) sharp, similar and variable bands in all genotypes. Average number of bands amplified by each primer was 15.419. Statistical analysis for EST SSR data was conducted using software programme NTSYS pc version 2.02e and GeneAlEx. The genetic distance (GD) among the all genotypes of cotton were also analyzed and it is ranged from 0.05 to 0.71 which indicates significant diversity between all the genotypes of both tetraploid and diploid cotton species. The average observed mean heterozygosity was 0.60 and observed mean percentage of polymorphic loci was 60%.
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- Low fertility and pest damage leads to a poor yield of pigeonpea in NEHR.
- Management through micro-nutrient and plant protection chemicals.
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- All the groups of consortia were effective in terms of degradation of MSW, improving the properties of soil and growth of the plants
- Also, when comparing with the control, the phosphorus, nitrogen content and plant growth showed great improvements
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The studies on seasonal variations in peel colour of grapefruit cv. Star Ruby were carried out in order to explain the relationship between fruit growth and colour development. The fruit diameter of the grapefruit increased from 90 days after fruit set to the maturity of fruit. The seasonal variation in fruit diameter was recorded 12.83% during fruit development. The increase in a* coordinate, which represented the gradual loss of greenness, continued until mid-November at 210 DAFS. Calorimetric coordinate b* values always remained positive and increased until the fruit maturity and showed yellow tinge. The hue angle values decreased continuously from start of sampling to the harvest of fruit with appearance of pinkish-yellow tone. Seasonal variation in the hue angle was recorded 26.80%. The negative correlation was observed between hue angle and the fruit development with the advancement of fruit maturity. However, studies have reported positive correlation was recorded between colour space values (L*, a*, b* and C*) with fruit development. The maximum seasonal variation was noted in colour parameter a* (CV = 189.99%) and minimum seasonal variation was noted in L* (CV = 9.42%).
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Eight parental lines and 28 F1 hybrids of ridge gourd obtained from half-diallel were studied to investigate the extent of combining ability and heterosis for earliness and vegetative characters. Appreciable heterosis in desirable direction was found over better parent and check parent for the characters viz. days to first female flower, node number to first female flower, vine length (m), number of primary branches and days taken to Ist fruit harvesting. Crosses PCPGR 7256 X PRG 142, PRG 117 X PRG 142, PRG 117 X PRG 131, PRG 117 X PRG 132 and PRG 117 X PRG 120 were found promising for earliness. Crosses PCPGR 7256 X PRG 117, PCPGR 7256 X PRG 131 and PRG 132 X PRG 120 were recorded promising for vegetative traits. Regarding general combining ability the parents PRG 117 and PRG 142 found best for earliness and for vegetative growth PRG 131 stood in top. The crosses PRG 131 X PRG 132 and PCPGR 7256 X PRG 142 showed highest specific combining ability for earliness and both the crosses PCPGR 7256 X PRG 117 and PRG 132 X PRG 120 found best for different vegetative traits.
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Arsenic (As) is a naturally occurring toxic metalloid which is introduced into the environment through natural geochemical processes and several anthropogenic actions. Since it is a carcinogen, there is an urgent need to efficiently remove As from contaminated soil and water. This review elaborates the chemistry and environmental distribution of As along with several bioremediation approaches to alleviate As pollution.
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Uniform and healthy corms of eight gladiolus varieties ( Yellow Golden, Nathan Red, White Friendship, American Beauty, Red Majesty, Purple Flora and Algarve) were irradiated with different doses (0, 25, 40, 55 and 70 Gy) of gamma rays from 60Co source and planted under open field condition in Randomized Block Design (RBD) with factorial concept. Each treatment was replicated thrice.Plants treated with higher doses (55 Gy and 70 Gy) showed deleterious effect of ionising radiations although at lowest dose (25 Gy) plants were not affected much. Plant height was reduced after irradiation as compare to untreated plants and was recorded minimum at highest doses. Number of shoots per plant was slightly increased at 25 Gy treatment (1.62) in vM2 as compare to untreated plants (1.42). Significant effect of gamma irradiation on corm and cormel characters was noticed. Maximum number of corms per plant was recorded in plants treated with 25 Gy and minimum at 70 Gy. Among all the varieties Nathan Red had maximum number (1.75, 1.97) and weight (73.29gm, 79.33gm) of corms per plant in vM1 as well as vM2 generation. Number of cormels per plant was also reduced with the increase in gamma rays dose. Maximum number of cormels per plant (227.83) was recorded in the interaction of Algarve variety with 25 Gy gamma ray dose in vM2. Homeotic mutants were isolated from all the varieties at 55 and 70 Gy except American Beauty and Red Majesty variety.
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Antioxidant activity of tomato has been extensively studied but only in context of Lycopene. This study relates the activity of antioxidant enzymes (Polyphenol Oxidase and Catalase) along with Lycopene in Lycopersicon esculentum Mill at different growth stages of (Seedling, Flowering and Fruiting). Polyphenol Oxidase, Catalase (both partially purified) and Lycopene were estimated spectrophotometrically and presence of Lycopene was further confirmed through Thin Layer and High-Performance Thin Layer Chromatography. Polyphenol Oxidase and Catalase could be partially purified with 2.61 (22.55% yield) and 2.11 (62.3% yield) fold purification respectively via ammonium sulphate precipitation respectively. Antioxidant enzymes showed maximum production at the seedling stage (Polyphenol Oxidases: 197.12U/ml and Catalase: 0.037U/ml) where Lycopene production was least; while Lycopene production was maximum in the fruiting stage (259.49mg/kg of fresh weigh) where enzyme activities were negligible. HPTLC analysis also supported the above findings. Linear Regression analysis of Lycopene, PPO and CAT were performed in which r (correlation coefficient) value for Lycopene and PPO was -0.9279108012 and for Lycopene and CAT was -0.7316992009; which indicated strong negative correlation between Lycopene and both the enzymes. It can be concluded that Antioxidant enzymes play their share at young stages while Lycopene at mature stage in antioxidant network of tomato.
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Lilium is a bulbous plant having non-tunicate bulbs. They are popular throughout the world for their exotic colours and fragrance, making them ideal cut flowers. A trial was conducted to study the effect of foliar spray of iron and zinc in form of sulphate to see their effect on growth, flowering and bulb yield attributes in lilium. Bulbs of lilium cv. Tresor were planted under polyhouse condition and different combinations of iron sulphate and zinc sulphate at 0.2% and 0.4% were applied as foliar spray at 30 and 45 days after planting. Experiment was laid out in a randomized block design with 3 replications. Foliar application of FeSO4 0.2% promoted length of flower stalk and diameter of 1st flower, while its higher dose (FeSO4 at 0.4%) increased the number of buds plant-1 and weight of bulbs plant-1. Foliar treatment of ZnSO4 at 0.4% significantly enhanced the number of bulblets plant-1, number of scales bulb-1, diameter of 1st flower and diameter of bulb. Different treatment combinations of iron sulphate and zinc sulphate also affected various characters like number of leaves plant-1, diameter of stem, days to colour show and days to opening of 1st bud.
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A laboratory experiment was conducted to study the effect of pesticides of different biodegradability on changes in inorganic and organic forms of N in soil maintained under two different moisture regimes. Results revealed that irrespective of pesticides and N treatment, comparatively higher amount of available N is recorded in waterlogged then the soil kept at 60% MHC. Addition of pesticides at lower dose affects the transformation process of organic N in soil. Irrespective of pesticide treatment, in general, hydrolysable NH4+ -N decreased but on the other hand amino acid N increased in soil. Again, the intensity of decrease or increase is more in waterlogged than the soil maintained under 60% of the MHC.
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Investigations were carried out to study the effect of precooling and preservative chemicals on post harvest longevity of the florets of tuberose (Polianthes tuberosa L.) cv. Prajwal. The effect of precooling of tuberose florets in combination with four chemical treatments were studied and observations were recorded based on quality parameters like freshness of the florets, colour retention, physiological loss in weight and days to fifty per cent wilting. Pre-cooling of flower buds was found to improve the longevity (shelf life) of flower buds. Soaking of florets in 4 % Boric acid solution for two hours and air drying them before packing increased the shelf life up to six days.
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In rural areas, both unemployment and underemployment exist side by side, the distinction between them is by no means sharp. The various sophistications and refinements brought about in the concepts and measurement of employment and unemployment, have not fully succeeded even in properly quantifying the above problems. Therefore, in the present study, an attempt has been made to measures the unemployment and under employment of agricultural labour in Tarai regions of uttaranchal state and Uttar Pradesh according to time and income criterion. In each state one district was selected randomly viz. Sidharth Nagar in Uttar Pradesh and U.S. Nagar in Uttaranchal state. From each of these two selected district, the Birdpur block in Sidharth Nagar district and Rudrapur block in U.S. Nagar district was selected randomly. The study is based on the 55 households in Birdpur block and 66 households in Rudrapur block. Thus, total sample consists of 121 agricultural labour households. The study pertained to the year 1999-2000. In order to achieve the objective simple averages and percentages were used. The findings of the study reveals that the unemployment and under employment measured by time and income criteria for agricultural labour household as well as agricultural labour was higher in Uttar Pradesh as compared to Uttaranchal state. It is, therefore, suggested that more avenues of employment must be provided at the village level, including provision of loans for the purchase of inputs, cross bred cattle, and land distribution among agricultural labourers.
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The irrigated crops Demand based on water requirement is 2.12 m.ha.m (44.72 percent). This Demand-supply gap is 0.48 m.ha.m. (Palanisami 2013). India food grain need is 450 MT by the year 2050. The irrigation sector consumes the majority of water, and more attention is required in this sector. Almost all the utilizable potential will have to be harnessed to meet the demand for agriculture, industry, energy generation, and domestic consumption. The National Water Policy (2002) gives overriding priority to drinking water over other uses. Taking an average of 200 liters per capita per day (liter per consumer demand), the urban demand for water for the population of 1000 million (2012 estimate) would be 73.17 BCM, of which consumptive use should only be 14.63 BCM (20%). A quantity of 14.63 BCM is too tiny compared to the total potential to pose any supply problem. Due to improper wastewater management, the water Demand projected as 60 BCM compared to the actual demand 14.63 BCM. The drinking water Demand is 10 BCM at the present level of 40 liter per consumer and it would be 29 BCM by 2050 d (Ministry of Water Resources, 2018 estimate).
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The objective of present study was to evaluate the genetic polymorphism and identification of diverse parents among the 76 rice accessions using simple sequences repeat (SSR) markers. The accessions showed significant phenotypic variation for all the characters analyzed. The SSR Markers were highly polymorphic across all accessions and altogether 79 alleles were detected. The overall Polymorphic information content (PIC) value ranged from 0.26 to 0.65 with an average of 2.82 per locus indicting high level of genetic variation. The cluster analysis showed the rice germplasm accessions grouped in to two major groups and 14 subgroups. The pair-wise genetic dissimilarity co-efficient indicated that the highest dissimilarity was obtained between cultivar B.3688-TB and IR.67017-1(0.1935) followed by cultivar Badi Kodi and Changhat (0.3333). These grmplasms were showing wide genetic divergence among the constituent in it and may be directly utilized in hybridization programme for improvement of yield related traits. The markers RM 413, RM 481, RM 206 and RM 20 produced a maximum of four alleles. These microsatellite markers could serve as a powerful tool in selecting genetically diverse germplasm accessions, to execute efficient selection in highly segregating generations.
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Mushroom cultivation is one of the technically feasible and profitable agriculture practices which are widely recognized by researchers and farmers as the source of high income, employment, and rural development. Such employment generation and poverty alleviation ventures have a significant role in strengthening the socio-economic profile of marginalized population, especially to the rural women. Extensive training programs and workshops have been conducted by various agricultural universities, Krishi Vigyan Kendra, and research centers from time to time to skill the women for mushroom cultivation. Therefore, pieces of training have been a widely accepted strategy with high returns on investment. In this research work, the study was done to evaluate the knowledge and skill development among the women and to identify the problem and challenges towards mushroom cultivation. The majority of women respondents (75%) have a medium level of knowledge, followed by a high level (13.3%) and a low level of knowledge (11.67%) of post-training mushroom cultivation. This might be due to the high interest of trainees, convenient farming, and method followed for transfer of technology. 73.33% of women have shown a favorable attitude towards mushroom cultivation. It has been observed that the mushroom cultivation training has shown a favorable attitude which helped in income generation, thus aiding financial assistance to the family.
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Castor is an important crop of arid and semi-arid regions of the country. The castor cultivation in India is increasing year after year. In India, Gujarat and Rajasthan are two major states producing more than 80% of total castor production. The castor seeds are crushed or expelled to get castor oil, which is further used to make many important derivatives for industrial purposes. Castor being more remunerative crop to farmers of arid and semi arid region and the adoption of castor cultivation has improved the livelihood of farmers. Due to non-perishable nature of castor seeds, sometimes farmers store castor for long times growing seasons without any reduction in marketable quality of castor seeds. Cellulose is the major component of castor plant and the paper is composed of cellulose fibers. Paper and pulp industry has found suitability of use of sugarcane bagasse as raw material for paper production. Castor GCH-7 hybrid plants attained an average height of 100-110 cm with 25-30 branches. The diameter of main spike branch and sub-spike branches were ranged between 3.0-5.0 cm and 2.0 to 3.0 cm, respectively. The cellulose content was observed to 45.7%. The present study showed that the cellulose content in castor stem was remarkably higher than the other agro waste, therefore have potential to be used in paper industry, which was around 11% more than sugarcane bagasse, 25% more than rice straw and 50% more than wheat straw. In the present study, the lignin content was found 17.2%. The present study showed that the lignin content in castor stem was less than the other agro waste used in paper industry, which was around 30% less than sugarcane bagasse, 40% less than rice straw while 7% more than wheat straw. The ash content of castor samples was observed to 2.3%.
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Early blight of tomato is one of the most destructive diseases caused by Alternaria solani causing considerable loss to quality and quantity of fruits. To avoid chemical fungicides in the management of this menace, soil borne rhizospheric organisms were isolated and evaluated against the pathogen. Different antagonists i.e Aspergillus sp. Trichoderma sp. Pseudomonas sp. and Bacillus sp. were used against most virulent isolates of A. solani under in vitro and in vivo conditions. Maximum in vitro inhibition of mycelial growth of Alternaria solani was observed in case of Trichoderma sp. (87.69%) followed by Aspergillus sp. (84.23%) as compared to control. Under glass house conditions Trichoderma sp. exhibited a similar efficacy with a percent disease control ranging from 82.6-91.3.
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The effectiveness of pre-harvest calcium, chloride on post-harvest life and quality of peach fruits were studied. Calcium chloride viz. 0.5%, 1.0% and 1.5% was sprayed to peach plants at pit hardening stage, 10 and 20 days after pit hardening. Peach fruits harvested at physiological mature stage were sorted, washed, air dried and packed in CFB boxes before placing in cold store (temperature 0-10 and RH 85-90%). Changes in PLW, fruit firmness, sensory quality, pulp: stone, total sugars, total phenolics and calcium content were studied. Calcium chloride @ 1.5% (three sprays) resulted in minimum PLW, total sugars and maximum fruit firmness, sensory quality score, pulp: stone, total phenolics and calcium content during the stipulated storage period.
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A field experiment to evaluate the effect of five organic sources of plant nutrients and three fertility levels on productivity and economics of tomato was conducted during Kharif seasons of 2006 and 2007 under dry temperate region of HAREC, Kukumseri (L&S), Himachal Pradesh. Among organic sources, application of FYM @ 5 t/ha has recorded the higher values for all yield attributes except No. of branches/plant and was followed by FYM @ 2.5 t/ha + Azotobacter. However both these treatments were significantly at par with each other in recording significantly more No. of branches/plant, higher yield and productivity. Significantly higher economic efficiency of Rs. 1567.6 was achieved with the application of FYM @ 2.5 t/ha + Azotobacter and was followed by FYM @ 5 t/ha (1567.6 Rs./ha/day). Increase in the level of NPK has significant influence on yield, productivity and economic efficiency. Significantly higher values of different yield attributes were recorded with the application of 150% NPK which was reflected in getting significantly higher capsicum yield (190.0 q/ha) and productivity (1.04 q/ha/day) with greater economic efficiency of 1766.7 Rs./ha/day.
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Results indicated that IPM module proved comparatively economical against major insect pests of mungbean over farmer’s practices. The results revealed that, IPM module i.e., Mungbean with seed treatment of Imidacloprid 600 FS (5ml kg-1) followed by one spray of NSKE (5%) at 30 days after sowing (DAS) and chemical insecticide Triazophos 40 EC 0.04 per cent of the crop, were effective in reducing the incidence of White fly, MYMV, Jassids and Thrips and gave higher grain yield than farmer’s practices. Present study indicates that IPM is definitely better over non-IPM practices under different pest population numbers. IPM implies the rational integration of various methods of insect pests control to suppress the pest population below ETL. Therefore, farmers should be made aware of its benefits and motivated to critically analyze and make decisions regarding pest management practices.
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Yellow seeded Brassica is one of the most important oilseed crop cultivated in many parts of the world. The oil is consumed predominantly as edible oil and the defatted meal cake is utilized as animal/poultry feed. In the present study, intact seeds and defatted meal of 12 yellow-seeded Brassica genotypes evaluated for the presence of anti-oxidative and anti-nutritive factors. The maximum phenolic, ortho-dihydroxy phenols, flavonoid contents observed for Bio 39(16.946 mg/g), Bio 30(2.38 mg/g) and Bio 39(8.282 mg/g) respectively. The crude fibre, phytic acid and glucosinolate contents were found to be minimum in Bio 21 (6.95%), Bio 2 (3.632%) and Bio 38 (54.324 µmole/g) respectively. Vitamin C content was maximum in Bio 36 and Bio 3. The α-tocopherol content was observed to be maximum Bio 2 (61.875 mg/100g). The total antioxidant activity varied from 5.95 mg AAE/g in Bio 28 to 14.395 mg AAE/g in Bio 39. The DPPH radical scavenging activity was observed to be maximum in Bio 30 and reducing power was found to be maximum in Bio 21(0.867 ± 0.023). The present findings may be utilized for determining the quality status to ascertain their potential for development of better cultivar.
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Agriculture is being highly technologized today; to sustain production and gain higher yields, farmers have to be updated regarding available technologies. As the land area is decreasing, there’s always a challenge to increase production and earn profit. Therefore, technological innovations also change farmers’ socio-economic conditions. Considering this, an interview on three categories (landless, marginal, small) of 15 farmers was conducted at the Jagannathpur union of Kumarkhali upazilla under the Kushtia district to investigate the socio-economic status, problems in crop production, potentials, limitations of rural development and adoption extent of modern agricultural technologies. Outcomes expressed that, a major source of annual income (1,20,800 Tk) of landless farmers were from non-agricultural works; contrary, marginal (2,89,000 Tk) and small (3,89,200 Tk) farmers’ prime source of income was from agricultural origins. It was a positive sign that all categories of farm families spent a good sum of money for educating children immediately after food expenditure. All the farmers had drinking water, electricity and hygienic toilet facilities at their dwelling house. The problem confrontation index (PCI) of rural development was highest in lack of capital (36). Physical and social PCI was identified as limited natural resources (32) and reduction of croplands (28), respectively. Concerning technology adoption, 14% used biofertilizer, 12% followed a modern model of vegetable production, 12% collected quality seeds, 10% exercised mulching, 10% used perching and 10% imitated seed preservation techniques. Top PCI for crop production was high input cost (36) followed by lack of technical knowledge (34). Most of the respondents agreed that agricultural production directly contributes to food security (34), increased nutrition (32) and financial safety (30).
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- Savings on diesel fuel by replacing diesel irrigation pump by solar irrigation pump.
- Reduction in carbon dioxide and carbon emission by replacing diesel irrigation pump.
- Carbon credits generated by replacing diesel irrigation pump.
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Wheat is one of the most important staple food grains of human for centuries. It has a special place in the Indian economy because of its significance in food security, trade and industry. This study made an attempt to model and forecast the production of wheat in India by using annual time series data from 1961-2013. Parametric regression, exponential smoothing and Auto Regressive Integrated Moving Average (ARIMA) models were employed and compared for finding out an appropriate econometric model to capture the trend of wheat production of the country. The best fitted model was selected based on the performance of several goodness of fit criteria viz. Root Mean Squared Error (RMSE), Mean Absolute Percentage Error (MAPE), Mean Absolute Error (MAE), Mean Squared Error (MSE), Akaike Information Criterion (AIC), Schwarz’s Bayesian Information Criterion (SBC) and R-squared values. The assumptions of ‘Independence’ and ‘Normality’ of error terms were examined by using the ‘Run-test’ and ‘Shapiro-Wilk test’ respectively. This study found ARIMA (1,1,0) as most appropriate to model the wheat production of India. The forecasted value by using this model was obtained as 100.271 million tones (MT) by 2017-18.
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Agriculture plays an important role in the Indian economy. The agriculture sector has seen consistent and significant growth in terms of technology and innovation, which has helped India to become a food exporter. However, past initiatives focussed on improving production and environmental aspect were neglected. Now, government is formulating policies and initiatives that would help in increasing agriculture production along with sustainable development. Promotion of solar irrigation pump is among one of those policies. Provision of heavy subsidies and schemes (JNNSM, KUSUM, etc.) on the adoption of solar pumps have increased their affordability. Because of the increased affordability of solar pumps after subsidies, the popularity of solar pumps has increased in Rajasthan, which has resulted in an increased rate of adoption. Considering the role of solar pumps in current scenario and that of future, this study was conducted to analyze the economic viability and costs incurred in solar pump installation. Payback period, NPV, BCR, and IRR were used in the analysis.
- Following study tries to estimate the time it will take to recover the investment made on a 7.5 HP solar pump.
- Rate of growth of solar irrigation pump in the last eight years.
- Economic feasibility of installing solar irrigation pump.
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An experiment was conducted to study the effect of plant growth regulators like jasmonic acid (50 μM), brassinolide (0.5 ppm), salicylic acid (100 ppm), ascorbic acid (100 ppm), gibberellic acid (10 ppm), benzyl amino purine (5 ppm) and nutrient consortium (K2SO4 - 0.5% + FeSO4 - 0.5%) + Borax - 0.3%) and 1% TNAU pulse wonder on blackgram (Vigna mungo L.) variety TNAU Blackgram CO 6 under salinity condition. The salinity was imposed by 125 mM NaCl concentration in pot culture. Plant growth regulators and nutrient consortium were used as foliar spray at 20 and 40 days after sowing except jasmonic acid, which used as seed soaking. Under salinity stress, root volume, leaf area, specific leaf weight, net assimilation rate and yield were significantly reduced compared to normal condition. Among the treatments, brassinolide showed its supremacy on higher leaf area (149.13 cm2 plant-1), specific leaf weight (0.41 mg cm-2) and super oxide dismutase activity (325 Units mg-1 protein) followed by salicylic acid and TNAU pulse wonder. However highest root volume of 3.5 cc was recorded by TNAU pulse wonder. Salicylic acid registered highest net assimilation rate of 0.398 mg cm-2 d-1 followed by brassinolide (0.396 mg cm-2 d-1). The minimum Na+/K+ ratio (0.325) was observed in brassinolide followed by salicylic acid (0.355) which is on par with nutrient mixture (0.357) and TNAU pulse wonder (0.362). Among the plant growth regulators and nutrients, brassinolide recorded the maximum grain yield of 8.85 g plant-1 followed the salicylic acid (8.72 g) which is on par with TNAU Pulse Wonder (8.60 g).
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- Agricultural by-products can be used as feedstock materials to produce biochar.
- With pyrolysis, significant changes in chemical, physical, and structural can easily be revealed by FTIR spectra and SEM of biomass and biochar samples.
- The proposed image processing method can detect the cell walls of SEM images after efficiently removing the noise from the original gray-scale images
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The present study attempted to assess the contribution of NTFPs to income and employment by ensuring food and livelihood security for the tribal economy in Dang’s district of Gujarat. This indicates that most employment (42.51%) was generated by the wage sector followed by NTFPs collection (31.67%) and livestock rearing (15.85%) respectively. About 42 species of NTFPs were found to be collected and utilized for various purposes such as food, medicines, and raw materials for making implements and also as a source of income. It suggested that alternate sources of income to the villagers to improve their socio-economic conditions as well as increasing the income level and employment opportunities by effective collection and selling of Non-Timber Forest Products.
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Pesticide residues analysis in fruits and fresh vegetables is a challenge for food safety as the gap between pesticide sprays and harvests is very less in vegetables. A multi residue method was developed for qualitative and quantitative analysis of 64 pesticides (insecticides, fungicides and herbicides) using QuEChERS extraction method and GC-MS/MS (Triple Quadrupole) for analysis. Eight different concentrations of certified reference materials from 0.05 ppm to 0.30 ppm were injected in GC-MS/MS with MRM method, in six replications, and R2 ranged from 0.990-0.999 with RSD of 0.55 to 11.24. The sample preparation approach is through adoption of QuEChERS method, untreated control tomato samples were fortified with mixture of pesticides at 0.05, 0.25, 0.5 mg/kg, each is five replications, and the recovery of pesticides is in the range of 80-95%, and hence method can be used for qualitative and quantitative analysis of 64 pesticides in/on tomato for monitoring studies.
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Staygreen is one such trait in which genotypes possessing this trait maintain more photo synthetically active leaves (& less senescent) than genotypes not possessing this trait. Delay of leaf senescence also known as stay-green character, has been identified as an important component in the genetic improvement of several crops to promote stress tolerance and yield gain. Although the stay-green phenotype is superficially similar in all species and genotypes, the genetic and physiological routes the traits are diverse. Photosynthetically active leaves for longer period depends on the concentration of chlorophyll pigment absorbing sunlight for photosynthesis. An multi dimensional approach for studying the senescence pathway rather than studying only the physiological role made a significant role in improvement. Hence new approaches like genomics, proteomics and metabolomics studies are necessary to understand the various transcription factors involved in regulating the leaf senescence process. Therefore, this review has aimed to bring light to major aspects of the stay-green character, showing its potential use in plant breeding.
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This study has analyzed market integration across six major wholesale markets for groundnut, sunflower, and soybean. This paper investigates the market integration of selected oilseeds and respective oil markets in India by employing monthly wholesale prices from 2009 January to 2020 February. The stationarity property of the time series of prices was checked through the Augmented Dickey-Fuller (ADF) unit root test. To get the evidence in which direction the price transmission is occurring among the selected markets, Granger causality test has been used, which confirmed that some markets are influencing each other in a unidirectional way. Others have a bidirectional relationship at a five per cent level of importance, meaning that the chosen oilseed market prices have long-run association. In view of vertical integration Bellary pod market, Chennai oil and Ahmadabad oil markets are the key markets for groundnut, sunflower, and soybean, respectively. Thus, the study concluded that regional markets for selected oilseeds are strongly co-integrated. Furthermore, the study suggested that the Government can smoothen the price in most influencing markets and expect a similar result in other markets. Therefore, there is a need for faster market information movement by strengthening market intelligence by establishing an online marketing system through networking.
Highlights
- Market integration explains how distinct markets are related to one another.
- In India, selected regional markets for selected oilseeds are strongly co-integrated.
- Strengthening of market infrastructure including transportation, storage, and communication is the need of the hour to reap the benefits of market integration.
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- Bioinoculant showed a positive effect due to their PGP characteristics on wheat shoot growth
- Promising bacterial strains of Nitrogen fixers have potential as inoculation agents in eco-friendly wheat crop production under abiotic stress contributing to environmental sustainability.
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- This study conducted in Nahra Nala Watershed of Balaghat district, Madhya Pradesh, India, to make the land use / land cover classification map through Remote Sensing and GIS approach.
- SENTINEL-2B high-resolution imagery is used for achieving the higher accuracy in LU/LC classification.
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Indian mustard (Brassica juncea) is one of the important oilseeds produced in India. It is used as an ingredient in the preparation of various cuisines and used as a green manure by vegetable growers. Overuse of chemical fertilizers, poor irrigation facilities, and other anthropogenic activities has led to increased salt concentrations in the soil. Salt stress has been found to decline the growth and yield of Indian mustard. Salinity negatively affects seed germination, which is the first stage of the plant’s life cycle. Excessive salt has a huge impact on plant physiology. Mangrove soil provides shelter to various halotolerant plant growth-promoting bacteria like Azotobacter, which may provide a tool for sustainable crop improvement due to their multifarious features. Two fast-growing efficient isolates of halotolerant Azotobacter spp viz., AI, and AII were isolated from mangrove rhizospheric soil. Microscopic and biochemical characteristics of the isolates were studied. Both isolates showed PGP activities like phosphate solubilization, IAA, and ammonia production. A1 isolates tolerated salt concentration up to 0.5% and A2 till 2%. Seed germination parameters of uninoculated and isolate inoculated seeds under salt stress (0%, 0.1%, 0.2%, 0.3% and 0.4% of NaCl) were recorded. Salt stress significantly affected the germination traits. However, inoculation favored germination of mustard seeds in comparison to uninoculated ones under salt stress
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Among various agricultural operations, irrigation is one of the highest energy consuming operations followed by tillage operation for seedbed preparation (sowing or transplanting). Studies suggested that for optimal crop yield realization tillage energy use would have to increase. As draught animal (bullocks/he-buffaloes) uses had been highest (114.8 to 207.3 h/ha) in animal farming and subsequently animal energy use for tillage operations may be decreased by adoption of improved energy efficient implements suiting to local size of draught animals. In the same way manual transplanting of rice consumes higher energy and remains same unless mechanized transplanting of rice is introduced using self-propelled rice transplanters. With this background a study on energy requirement for cultivation of mechanized rice was carried out during 2008 and 2009 with different level of tillage (puddling) under animal farming system. Five different animal drawn puddling equipments (lugged wheel puddler, zigzag puddler, rotary blade puddler, disc harrow cum puddler and indigenous plough) with two level of puddling intensity (two and three passes) were used for development of puddle bed and subsequently rice transplanting was done by using three methods of transplanting viz. transplanting by self-propelled rice transplanter, manually operated rice transplanter and random hand transplanting. Results revealed that input energy for puddling operation depends on the actual field capacity and weight of the puddling equipments. The energy required for puddling operation for each of the equipment increased with varying level of puddling from two passes to three passes. The energy input for puddling operation was highest (19302 MJ/ha) in indigenous plough with three passes and lowest (18270 MJ/ha) in zigzag puddler with two passes. Higher values of energy output-input ratio (7.88) and lower value of specific energy (3.80 MJ/kg) was obtained in rotary blade puddler (three passes). In case of transplanting methods, self-propelled rice transplanter gave significantly highest (7.48) energy output-input ratio and lowest specific energy (4.15 MJ/kg). The puddle bed developed by rotary blade puddler three passes and rice transplanting by self-propelled rice transplanter resulted in higher yield (53.18 q/ha) associated with higher energy output-input ratio (8.63) and lower specific energy (3.45 MJ/kg) compared to rest of the treatments.
Highlights
- Energy input and economics of different puddling and transplanting methods was worked out to find out the energy efficient and cost effective puddling equipment for development of puddle bed suited to the requirements of mechanical transplanters.
- Five different types of animal drawn puddling equipments and two types of mechanical transplanters are used in this study.
- Study indicated that rotary tools are energy efficient for puddling operations compared to linear tools.
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A study was conducted in some terai soils under subtropical zone of Eastern India considering some soil series and some benchmark sites to evaluate distribution of available sulphur status and important soil attributes on sulphur availability. The total S content was found to vary widely from 191.18 to 530.40 mg kg-1 with an average of 309.21 mg kg-1. The percentage contribution of organic S, sulphate S, adsorbed S, heat soluble S and water soluble S varied from 29.62 to 85.02, 7.85 to 9.94, 0.23 to 9.82, 5.97 to 17.59 and 1.77 to 6.80 per cent to total sulphur in soil samples. Available S was significantly and positively correlated to organic carbon, total N, clay and silt+clay, oxalate-Fe, CBD-Fe and only negative correlated with pH (r = -0.02). Organic S exhibited significant and positive correlations with sulphate, water soluble S, heat soluble S and adsorbed S and played major role in sulphur availability. Significantly positive correlations of sulphate S with water soluble (r = 0.80**), heat soluble (r = 0.70**) and adsorbed S (r = 0.46**) and organic form of S (r = 70**) were found. A significantly positive correlation was observed between water soluble and heat soluble S. Among the soil properties, organic carbon, total N, silt+ clay, CBD-extractable Al and Fe influenced mostly on variability of available S in these soils.
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The effect of process conditions on the mass transfer during osmotic dehydration of coated pineapples was studied. Pineapple samples were coated with 0.5 to 5.0% (w/v) pectin solution prior to osmotic dehydration in sucrose solution. The time of dipping in the coating solution was kept at 60 and 120 s followed by oven drying time of 10 and 40 min to solidify the coating. Water loss, solid gain, performance ratio and weight reduction were measured during osmotic dehydration of both coated and uncoated samples. Water loss of coated samples was more than the uncoated samples in coating solution of 0.5 to 3% concentration whereas solid gain of coated samples was less than the uncoated samples at all the concentrations of coating solution. Increase in drying time led to decrease in both water loss and solid gain. PR values increased as the concentration of coating agent increased from 0.5 to 1% and further increase in the concentration above 1% resulted in decreased PR. The highest value of performance ratio of 5.89 was observed in samples dipped in coating solution of 1% concentration for 120 s followed by oven drying for 40 min.
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A field investigation was conducted to determine dissipation behaviour in soil and terminal residues of metribuzin in potato crop applied at half the recommended dose (0.25 kg. ha-1), recommended dose (0.50 kg. ha-1) and double the recommended dose (1.00 kg. ha-1). Soil samples at different time intervals after herbicide spray and potato tuber samples at the maturity of crop were collected, processed and subjected to metribuzin residue analysis by a validated gas chromatography method with an accepted recovery of above 80%. In all herbicide treatments, more than 90% of applied herbicide in soil dissipated within 45 days after herbicide application. Metribuzin residues in potato tubers at the time of harvest were below detectable levels. This indicated that the metribuzin did not leave any residues in potato tuber at any of the applied doses. From the study, it may be concluded that pre emergence application of metribuzin in potato for weed management could be considered safe, as its residues were below the prescribed MRL (0.05 mg. kg-1).
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A field experiment was carried out at the Bagusala Farm, of M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi, Odisha during the kharif season of 2018. Four traditional rice varieties namely, V1, Red rice (kondo dano), V2, Manipuri black rice, V3, Balami and V4, Dudheshwar were taken into consideration and the treatments were laid out in Randomized Complete Block Design (RCBD) with four replications. The traditional rice variety Dudheshwar got highest values of growth attributing characteristics, yield attributes and yield of rice. The highest grain yield (6560.25 kg ha-1) and straw yield (10632 kg ha-1) were achieved by treatment V4-Dudheshwar. In terms of net return and benefit: cost ratio, the variety Manipuri black rice is resulted in higher profitability as compared to other traditional rice varieties.
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Iron tolerant callus lines of Indica rice Vars. Khandagiri and Jagannath has been achieved on Murashige and Skoog (MS) medium supplemented with 1.0 mg/l Kinetin, 3.0 mg/l 2,4-D, 12 mM Fe. Somatic embryos derived from both tolerant non-tolerant calluses are germinated on MS medium supplemented with 1.0 mg/l 6-benzylaminopurine (BA), 0.25 mg/l 1-napthalen-eacetic acid (NAA) and 12 mM Fe within four weeks of subculture. The growth parameters like fresh and dry weight of callus, growth tolerance index, enzyme activity (Catalase and Peroxidase) and biochemical markers were used as indicators of iron tolerance. Measurements as early as two weeks after the beginning of the treatments did not yield consistent results. However, the growth tolerance index in the four weeks after the beginning of treatments yielded significant differences among non-tolerant and tolerant calluses. The enzyme activity is enhanced in the tolerant calluses than non-tolerant one. The in vitro raised plantlets derived from tolerant callus lines are grown in vitro in the presence of BA, NAA and 12 mM iron. The tolerant plantlets are established in the pots with iron-rich soil. This study will help to develop iron tolerant rice plants for breeding program.
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The productivity of potato in hilly state of Himachal Pradesh is far below than the national average. Major reason is low adoption rate of improved varieties and technologies due to lack of knowledge. Present study was conducted in Shimla, Mandi and Kangra district of HP during year 2011-12 to find out the extent of knowledge of potato farmers about scientific potato production technology and knowledge gap in relation to different package of practices for potato cultivation. A total of 90 respondents, (30 from each district) constituted the sample of the present study. Data was collected by interview method using structured interview schedule and subjected to appropriate statistical analysis. The findings revealed that a majority of the respondents (78.8%) had medium to low knowledge level about scientific potato production technology. Maximum knowledge gap was found in practices like weed management (73.3%) followed by seed treatment before storage (70%) and insect-pest management (68.8%). Majority of farmers were having knowledge about improved varieties, method of fertilizer application, row to row and plant to plant spacing and planting operations. Socio-personal-economic variables like education, land holding and annual income were significantly and positively correlated with knowledge level of farmers.
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Aquaculture is one of the main sources of livelihood of the state of Assam in the northeast of India. In this study, Cachar district of Assam has been selected to study and assess the impact of various sizes of fish farm on the economic condition of farmers. The study was conducted in the villages of 5 blocks namely Borjalenga, Tapang, Narsingpur, Sonai and Palonghat with an objective to suggest optimum size of the pond and analyze the production rate of different type of fish farm. The data was collected from around 169 farmers by the principle of participatory rural appraisal a method used by non- governmental organizations. Most of the farmers are not much educated and most of them lived below poverty line. The number of medium size ponds (0.5 to 1 hectare), and small farm ponds (between 0.3 to 0.5 hectare) are highest followed by very small (less than 0.3 hectare) and then large size ponds (more than 1 hectare). In the study area, both excavated and embankment type pond exist. The results indicate that even with possession of small and medium size fish farms, better annual production rate of fish can be achieved by better management practices. 83% of all fish farms in Cachar district are very small, small or medium size fish farms. Only 17% of the farms are of large size. The annual production is remarkably good for small and medium size farms. The results indicate that small and medium farm sizes have better annual production rate than other farms. Thus, small to medium farms are economically more viable for the Cachar district.
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The present study was carried out for the assessment of heterotic performance of 44 hybrids and their parents including check under saline ecosystem at Vegetable Research Form, NDUAT Kumarganj Faizabad U.P. These F1s were produced by using Line x tester mating design. The crosses, which displayed superiority over better parent and standard variety for total yield per plants, also exhibited significant heterosis for some/most of the major component traits. The most worthy common crosses selected on the basis of per se performance, heterobeltiosis and standard heterosis for different traits in both environments were Bilahi-2 x H-86 and Himlata x H-86 for total yield; MM x H-88 and KS-60 x H-24 for number of fruits plant-1 in E2, MM x H-86 and MM x H-88 for average fruit weight in E1 and EC 168282 x H-24 in E2 for length of fruits; Himlata x H-88 in both experiment and NDT-2 x H-88 in E2 for diameter of fruits and Himlata x H-86 in E1 and NDT-2 x H-86 in E2 for early yield plant-1. However, for agronomical traits, Bilahi-2xH-86 in both environments for plant height as well as number of primary branches plant-1 was observed as voluble cross combination. Promising hybrid identified for the characters important to processing and quality point of view, were MM x H-88 in both environments for total soluble solids; EC 2291-2 x H-88 in both environments for Ascorbic acid content and EC 7343 x H-24 in E1 and Bilahi-2 x H-88 in E2 for pericarp thickness. However, none of the crosses were common for titrable acidity in both the environments in relation to above three parameters i.e. per se performance, standard heterosis and heterobeltiosis.
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The effect of transgenic Bacillus thuringiensis (Bt) cotton residues on soil microbiological activity was investigated. Greenhouse study was carried out during the 2011 wet season (March to August) at Institute of Agricultural Sciences, Banaras Hindu University. It was experimented on three different soil orders that included entisol, inceptisol and alfisol. Bt cotton (var.NCS-138) and its non-transgenic isoline (var.NCS-138) were grown until maturity along with one control treatment. Microbial population count, Dehydrogenage activity and Microbial Biomass Carbon (MBC) were estimated following standard protocols. The decomposition of cotton crop residues resulted increased micro-flora populations and microbial biomass carbon (MBC). When residue was retained, non- Bt cotton showed higher populations of micro-flora as well as MBC that of Bt-cotton. Results from the study revealed that a significant reduction (7.5%) of the dehydrogenase activity was there in case of Bt-cotton. The interaction effect between soil type and varieties was found to be non significant for the soil micro-flora populations for different sampling stages throughout the incorporation period.These results suggest that Bt-transgenic cotton tissues have no apparent effect on soil microbial activity.
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Cereal crops such as wheat, rice and barley underpin the staple diet for human consumption, globally. In India, wheat is qualitatively a major source of macromolecule, energy and fiber for human community nutrition since long time hence, preferably used as a staple food grain for society and also used as major source of fodder for animal feeding. The health benefits of whole grains are linked to the existence of secondary bioactive metabolites including phenolic acids, flavonoids and phytosterols. Flavonoids have the properties like anti-inflammatory, antioxidant, antiallergic, antithrombotic, antiviral and anticarcinogenic activities. Quercetin is one with an average of daily consumption of 25 mg to 40 mg. Kaempferol used as an antioxidant. Quantification data revealed that the total flavonoid content (free + bound) was observed highest and lowest in durum genotypes of HD 4728 (1.75 mg/gdw) and Raj 6560 (0.92 mg/gdw), respectively and in aestivum genotypes Raj 4037 (1.38 mg/gdw) and HI 1544 (0.72 mg/gdw) gave similar trend. Regular daily intakes of whole grain products are associated with reduced risk of several diseases. The objective of this study was identification and characterization of secondary metabolites i.e. flavonoids in Triticum sp.
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Perchlorate is a significant environmental pollutant affecting public health. When entered in ecosystem it is highly toxic. Present investigation focused on the influence of perchlorate on physiological and biochemical parameters of Eucalyptus citriodora and also its accumulation in plant tissue and depletion from soil. Eucalyptus plants were treated with varying concentration of ammonium perchlorate from 1000ppm, 2000ppm, 5000ppm and 10000 ppm. Perchlorate inside the plant tissue and in soil was quantified at regular intervals. Amount of perchlorate inside plant tissue observed to increase with number of days after treatment and is proportional to concentration of perchlorate in soil. Morphological characters like shoot length, root length, number of leaf were observed to decrease with increasing concentration of perchlorate. The present study revealed decrease in chlorophyll and reducing sugar content in leaf tissue under varying concentration of perchlorate and is indirectly proportional to amount of perchlorate. While total protein, proline, and phenol content showed a gradual increase with increase in concentration of perchlorate and in different experimental set up, suggesting increase in non-enzymatic stress parameters with increased level of toxicity. An increased activity of peroxidase enzyme was observed with increased dose of ammonium perchlorate. It can be concluded that perchlorate related influence on plant are both qualitative and quantitative and depends upon its concentration and duration of exposure.
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A study was conducted at Regional Research Station, Bathinda to determine the effect of different pruning intensities on yield and fruit quality of ber cv. Umran. The secondary branches of ber trees were pruned at 4, 6, 8, 10, 12 bud levels and control i.e., no pruning. The fruit yield decreased with the increase in intensity of pruning. The maximum fruit weight and fruit size in terms of fruit length and fruit breadth was obtained in trees pruned at 8th bud level followed by the trees pruned at 10th level and minimum in the trees kept under control. The pulp percentage and pulp stone ratio was maximum in the fruit of the trees pruned at 8th bud level. TSS content was maximum in the fruits pruned at 8th bud levels followed by 10th and 12th bud levels and minimum under control. The acid content of the fruits was also not influenced by pruning intensities.
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A field experiment was conducted during kharif season of 2018 at Bagusala Farm, of M.S. Swaminathan School of Agriculture, Centurion University of Technology Management, Paralakhemundi, Odisha to study the effect of integrated nutrient management in finger millet (Eleusine coracana L. Gaertn) on yield attributes, productivity and nutrient uptake under south Odisha conditions. The experiment was laid out in randomized complete block design with ten treatments and replicated thrice. The treatment combinations are T1, control,T2, FYM @ 4 t ha-1, T3 FYM @ 8 t ha-1, T4, 100% RDF (40:20:20 - N: P2O5: K2O kg ha-1), T5, 50% RDF + 4 t FYM, T6, 75% RDF + 2 t FYM, T7, FYM 4 t ha-1+ Azospirillum @ 5 kg ha-1, T8, FYM 8 t ha-1 + Azospirillum @ 5 kg ha-1, T9, 50% RDF + 4 t FYM + Azospirillum @ 5 kg ha-1, T10, 75% RDF + 2 t FYM + Azospirillum @ 5 kg ha-1. Application of 100% RDF resulted in the highest yield components like number of effective tillers m-2, number of grains ear head-1, number of fingers ear head-1, test weight and length of fingers which remained statistically at par with the application of chemical fertilizers along with the FYM and Azospirillum (T10). The highest grain yield, straw yield and biological yield were achieved from the treatment with 100% RDF which was followed by application of 75% RDF + 2 t FYM + Azospirillum (T10) and 75% RDF + 2 t FYM (T6). However, the lowest values yield attributes and yields were recorded in control (no nutrients). Total nutrient (NPK) uptake by finger millet differed and it was found that application of 100% RDF recorded significantly higher nutrient uptake than other treatments. The lowest uptake of N, P and K was recorded in absolute control treatment.
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Zinc deficiency is a global challenge and improving the grain Zn concentration of cereal crops is a high-priority research area. An investigation was conducted in 2011-12 to study the effects of nitrogen (N) and zinc (Zn) fertilizer on zinc biofortification in pearl millet. The experiment was laid out in a randomized block design (factorial), with four nitrogen rates (0, 20, 40 and 60 kg N/ha) and three rates of zinc (0, 5 and 10 kg Zn/ha) with three replication. The grain yield significantly increased 47.65% from 0 to 60 kg N/ha and 31.47 % from 0 to 10 kg Zn/ha. Nitrogen and zinc significantly interact and recorded highest zinc content (26.1 mg/kg) with 20 kg N with 5 kg Zn/ha. The agronomic efficiency, partial factor productivity and apparent recovery efficiency (nitrogen and zinc) diminished as nitrogen and zinc rates increased. An interaction was recorded with nitrogen and zinc fertilizer for partial factor productivity (nitrogen) with 20 kg N with 10 kg Zn/ha and for apparent recovery efficiency (Zn) with 20 kg N with 5 kg Zn/ha.
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Some mechanical properties of onion seeds were investigated in this study. These properties are often required for the design of transportation, storage and grading/sorting machines and other post harvest machines for onion seeds. The seeds were compressed along three mutually perpendicular axes and the properties studied were initial rupture force, rupture force, deformation at rupture and energy consumed at rupture. The ranges of moisture content investigated were 7, 9, 11, 13 and 15% (db), respectively. The tests were carried out at a deformation rate of 70% strain energy. Onion seeds were compressed along major axes (length), intermediate axes (Breadth) and minor axes (thickness), respectively. Physical properties like dimensions, geometric mean diameter, sphericity and mass were also evaluated. It was observed from the results that rupture force, Peak force and energy consumed at rupture decreased with increase in moisture content and the deformation at rupture increased with increase moisture content.
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This research evaluates a web-based ICT enabled portal (Krishinet) on the basis of practical application of farmers in the study area. In this study we use quantitative approach for analysis. It includes three major parts, first content inventory, in this the entire content of the portal was catalogued, second content audit, in this quantitative method was used and it was found that 37.14 percent respondents felt that the content of the Krishinet portal was good, followed by 32.50 percent respondents felt that the portal was of average quality and only 30.36 percent respondents felt that the portal was of poor quality and the third part was content mapping, in which linear type of content mapping was done in which head content of single segment was presented in coloured rectangular boxes and subhead segment were presented in different coloured boxes with links to each other.
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Genetic resistance is the most efficient, economical and environmental friendly approach against black rust of wheat. Although, evolution of new physiological races/pathotypes which can overcome the response of current resistant cultivar has engender to focus on evaluation of large number of wheat germplasms, breeding materials, cultivars for their reaction to black rust. Field based assessment for adult plant resistance in promising fifty entries against predominant pathotype 40-A of black rust revealed that forty eight entries showed resistance with lower AUDPC value in the range of 0 to 240 as compared to highly susceptible check varieties i.e. Lok 1 and Agra Local which showed AUDPC value of 1305 and 2000, respectively. But, amongst the forty eight resistant entries, forty entries showed durable resistance due to slower development of disease under high disease pressure which could be due to the presence of effective adult plant resistance Sr genes. Result of correlation coefficient between CI with both the disease parameters i.e. AUDPC (r=99**) and FRS (r=98**) also showed highly significant positive association.
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A field experiment was conducted during the year 2018-2019 to study the effect of spacing (50×50, 50×60 and 50×75), dose of vermi-compost (0, 5.0 and 10.0 ton/ha) and foliar application of salicylic acid (0, 100 and 200 ppm) on the growth, flowering and soil health of chrysanthemum. The experiment was laid out in a factorial randomized block design with twenty seven treatments and three replications. Significant improvement in growth and flowering characters was recorded with closer spacing (50×50 cm) except plant spread, number of flowers/plant, weight of individual flower, diameter of flower, shelf life and stalk length while, plants grown at wider spacing had maximum available NPK in post harvested soil. Gradual increases doses of vermicompost for 0 to 10.0 ton/ha significantly improved plant growth, flowering and yield attributing traits alongwith higher availability of NPK in post harvested soil. Among the foliar spray of salicylic acid, salicylic acid (100 ppm) significantly produced good plant growth and flower yield except induced early flowering and 50% flowering however, control showed maximum availability of NPK in post-harvested soil. Among the combined combinations, maximum flower yield/plant was recorded with treatment combination T26 (S3+VC2+SA1) and treatment combination T8 (S1+VC2+SA1) resulted in maximum flower yield/plot and flower yield/ha during course of study
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Weed is the main menace in paddy cultivation and its eradication from the paddy field is difficult and time consuming process. Traditional method of hand weeding is time consuming and labour intensive. Another method of weed control, through chemical method by weedicides is simple and fast method but is restricted due to its adverse effects on both environment as well as human beings. To overcome this, mechanical method by self – propelled weeders can replace this constraint. A power weeder was designed and developed for upland paddy and is tested for its field performance. The machine depicted satisfactory performance for weeding at both 20 and 45 DAS and fuel efficient (0.63 to 0.7 lh-1) with weeding efficiency as 74.20% and 85.90% for weeding at 20 and 45 DAS respectively. The machine showed satisfactory result by less plant damages of 3.75 and 8.26% at 20 and 45 DAS respectively. The field efficiency of weeder at 45 DAS was 8.5% more than that of 20DAS.
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In developing country like India, a marketable surplus of agriculture is the most important factor which influences the economic development of a country. To meet the demands of agriculture goods adequately and to feed the increasing population, the phenomenon of Green Revolution came into existence. Green Revolution, allowed developing countries like India to overcome continual food scarcity by producing more food and other agricultural products by using high-yielding varieties of seeds, modifying farm equipment, and substantially increasing use of chemical fertilizers. For an optimum production of agriculture produce and to feed the growing population, application of chemical fertilizers and pesticides has become necessary. Such type of agriculture practices allowed growth and sustainability of food grains but at the same time have the major impact on the environment and human health. This article provides a sketch of effects of chemical fertilizers and pesticides on human health and environment.
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Crop geometry is an important factor to achieve higher production by better utilization of resources and in turn higher production of photosynthates. The ideal crop geometry can assure healthy and uniform stand in the main field and ensure higher productivity. Proper age of seedlings has a tremendous influence on the tiller production, grain formation and other yield contributing characteristics. In view of the above, a field experiment was conducted during kharif season (June to October) of 2018 at Bagusala Farm (23o39’ N latitude, 87o42’ E longitude) of M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi, Odisha to find out the effect of crop geometry and age of seedlings on yield attributing characters, yield and nutrient uptake of finger millet (cv. Vakula) in sandy loam soil. The experiment revealed that transplanting of 20 days old seedlings at 25 cm x 25 cm spacing registered superior performance in expression of yield attributes like effective tillers m-2, number of grain ear head-1, number of fingers ear head-1, test weight and length of the fingers; grain and straw yield and nutrient uptake. It may be concluded that to obtain higher productivity of finger millet during kharif season in sandy loam soils of south Odisha, 20 days old seedlings may be transplanted with a spacing of 25 cm × 25 cm.
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Understanding the genetics of floricultural germplasm represents a value added component of managing collections. Molecular approaches collectively represent a potential goldmine of important information that can be applied to programmes of genetic improvement. The development and utilization of molecular markers for the exploitation and identification of plant genetic diversity is one of the most key developments in the field of molecular genetics studies. Molecular markers are popular tool, due to their stability, cost-effectiveness and ease of use for a variety of applications in the field of molecular genetics. To know the role of molecular markers in genetic studies of floricultural crops, a number of molecular marker techniques have been reviewed by many researchers in worldwide. However, all these reviews were meant for researchers with advanced knowledge of molecular markers and their utility in limited aspects under floricultural crops. This review presents an overview of different marker technologies and their variants with a comparative account of their characteristic features and applications especially diverse molecular techniques used in assessing plant genetic diversity, inter-relationship between the genotypes, genetic purity, DNA barcode, tagging of important genes, development of linkage maps, marker assisted selection and application of molecular markers in tissue culture of floricultural crops. Altogether, the characteristics and types of markers with their applications and some recent advancement in genetic studies of floricultural crops are discussed.
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The present study explores the potential antioxidant activity and β-Carotene content of banana peel and banana peel extracted insoluble dietary fibres. Grand Nain cultivar of bananas was selected. Two stages of ripened banana peel powder mainly stage 3 and 4 were compared along with the extracted insoluble dietary fibre for their β-Carotene and antioxidant activity. β-Carotene content in stage 3 banana peel powder and banana peel extracted insoluble dietary fibre powder varied from 42.8 to 29.9 mg/100g and in stage 4 banana peel powder and banana peel extracted insoluble dietary fibre powder varied from 26.8 to 11.8 mg/100g respectively. Antioxidant activity varied from 61.41±1.46% to 61.08±9.46 in stage 3 banana peel powder and banana peel extracted insoluble dietary fibre powder respectively, whereas, in stage 4 banana peel powder and banana peel extracted insoluble dietary fibre powder it varied from 47.46±7.32% to 43.44±8.54% respectively.
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Moisture stress is a limiting factor to achieve potential yield of summer sesame (Sesamum indicum L.) under limited water resources and mulching is one of the suitable measures to mitigate the problem. Further, pre-sowing soaking of seeds with chemicals can facilitate growth, physiological and metabolic activities and thus enhance crop productivity. An experiment was conducted at Bagusala Farm of MS Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi (23o39’ N latitude, 87o42’ E longitude) during summer season of 2018 to study the effect of mulching and pre-sowing seed treatment with agro chemicals on growth and productivity of summer sesame. The experimental soil was sandy loam in texture with a pH of 6.1, 0.73% organic carbon and 230, 32.1 and 346 kg ha-1 of available N, P and K, respectively. The experiment was laid out in Split Plot Design (SPD), with two factors, namely, mulching (main plot) and seed soaking with agro-chemicals (sub-plot). In main plot three treatments of mulching were taken, namely, M0, no mulching, M1, paddy straw mulching and M2, plastic mulching, however, four seed soaking treatments, viz., P1, water soaked, P2, 200 ppm potassium chloride (KCL), P3, 400 ppm potassium dihydrogen phosphate (KH2PO4) and P4, 400 ppm disodium hydrogen phosphate (Na2HPO4) were considered in sub-plot. Thus 12 treatments combinations were replicated thrice in 4m × 3m plots. Sesame variety ‘Gauri’ performed well with plastic mulching as it recorded significantly better growth and higher yield than paddy straw mulching and no mulching. Among seed soaking treatments, it was noted that pre-sowing seed soaking with either of 400 ppm of Na2HPO4 or 400 ppm of KH2PO4 exhibited superiority to other treatments to obtain higher productivity. Moreover, plastic mulching and seed soaking with either of Na2HPO4 or KH2PO4 combination resulted in higher net return and benefit: cost ratio.
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The success of crop improvement programs depends on variability and heritability of desirable traits. An investigation was carried out to assess the extent of variability generated by hybridization to estimate the heritability and genetic advance as percent of mean and correlation analysis for seed cotton yield and yield component traits and fibre quality traits in F2 main crop and F2 ratoon crop generations of 32 novel upland cotton hybrids. The segregating population was evaluated for fifteen traits. It was found that the F2 main crop and F2 ratoon crop populations are superior to the parents and expressed highly significant differences for all the traits. The high phenotypic coefficient of variation and genotypic coefficient of variation were recorded for traits number of monopodial branches per plant, number of bolls per plant and seed cotton yield per plant. High heritability coupled with high genetic advances was recorded for traits number of monopodial branches per plant, number of bolls per plant, lint index, seed cotton yield per plant and fibre fineness. As results of the correlation analysis, seed cotton yield was significantly positively associated with days to first flowering, number of sympodial branches per plant, number of bolls per plant, boll weight, lint index, seed index, ginning out turn and fibre fineness. Results further revealed that F2 main crop and F2 ratoon crop generations with larger genetic potential, moderate to high heritability and positive association between yield and yield contributing traits and fibre quality traits could guide intensive selection for improvement in segregating populations.
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The latest world water development reports (UN-Water, 2009) observe how the various global crisis reported recently- in climate change, energy, food security, economic recession and financial turbulence-are related to each other and have impacts on water. Water Scarcity is a growing threat to our global economy, society and even to the survival of human beings. The crisis that we face today is mainly due to water pollution especially in the field of agriculture. Pollution can be anything from oil, to carcasses, to chemicals and to fecal matter, whatever the cause it majorly affects the global population. The world is moving towards a direction where water is becoming costly hence not affordable by the majority of people. As far as India is concerned it is gifted with many water bodies but due to improper management and unscientific industrial development. We are staring at the increase in the death of rivers. Erratic development plans mean our future generation is in major threat, sustainable development plans mean our future generation is saved from such major threat, sustainable development is the hour of need. Apart from government policies, the change needs to come from the grass-root level. This paper deals with water use and savings for the future. It also highlights the importance and threats of water scarcity and the challenges that will be faced by future generations.
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The present investigation was carried out to study genetic variability in sixty-four low land rice genotypes (including fifty-five landraces of Odisha) for twelve traits. Analysis of variance (ANOVA) revealed significant differences among the genotypes for all the studied characteristics. Flag leaf area, effective tillers per plant, filled grains per panicle, 100-grain weight and harvest index had moderate to high phenotypic coefficients of variation (PCV) and genotypic coefficients of variation (GCV) estimates suggesting that these traits are under the influence of genetic control and less affected by the environment. In the present study, all the characters exhibited a high degree of heritability and among those flag leaf area, number of filled grains per panicle, 100-grain weight, harvest index and grain yield per plant had high genetic advance indicating the presence of additive gene effect and hence selection based on phenotypic performance for these traits would be effective. Filled grains per panicle and flag leaf area followed by 100-grain weight and harvest index are important characters having high heritability, genetic advance as well as high coefficient of variation which should be considered while selecting for high yield.
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Intercropping of Sunflower with Groundnut and Blackgram in different cropping patterns showing effects on yield attributes in sole crops and intercrops. In view of this a experiment was conducted during summer season (February to June) of 2018 at Bagusala Farm (23o39’ N latitude, 87o42’ E longitude) of M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi. Effect of intercropping summer sunflower with legumes on yield attributes and productivity. 9 treatments of sole, 1:1, 2:1, 3:1 ratios of sunflower1 crop with groundnut2 and blackgram3 were tested in RCBD design with three replications. The experiment revealed that superior performance in expression of yield attributes like significantly increased the yield attributes like Number of pods/capitulum per plant, Number of seeds per pods/capitulum, Number of seeds per plant, Seed weight per plant (g), 1000 seeds weight (g), Seed yield (kg/ha), Biological yield (kg/ha). It may be concluded that to obtain higher productivity of crops which are having higher productivity during summer season in sandy loam soils.
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At present, about two-third of the Indian population relies on indigenous knowledge of biological resources and have conserved their knowledge and culture through their traditional lifestyles and local economies. More than 7500 species of plants are utilized for the traditional purposes in India. The economic value of traditional knowledge in the herbal medicine and pharmaceutical sector is estimated to reach around 5 trillion by 2020. Since Indian agriculture is highly rich in biodiversity, it becomes an easy prey of biopiracy in agriculture-based business corporations. Biopiracy term is generally used when multinational corporations or companies profit from the medicinal and agricultural uses of plants known to indigenous or native societies and fail to compensate those communities. Traditional Knowledge (TK) plays a key role in the preservation and sustainable use of biodiversity. There is a threat to the future of TK due to globalization of production systems and the distance between the holders of knowledge and its exploiters. Many cases have been registered in India where attempts have been made to steal the indigenous knowledge from India due to its easy access which affect food security, livelihood of indigenous people and even cause changes in consumers’ choice. Indian government challenged many patents in the last two decades by providing numerous research papers predating those patents and these patents were thus rejected. India is the pioneer country in the world to have set up an institutional mechanism – the Traditional Knowledge Digital Library (TKDL) – to protect its TK.
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A study was carried out to assess the effect of different mordants and concentrations on the colouring characteristics of jackfruit bark dye on silk. Six types of mordants, viz. citric acid, alum, ferrous sulphate, aluminum sulphate, copper sulphate and potassium dichromate (K2Cr2O7) were used, each at 1, 2 and 3% of weight of the fabric (o.w.f.). The material liquor ratio was maintained at 1:40. The Hunterlab colour scale was used to analyse the variations in colour and intensities. The results indicated that the maximum change in colour with respect to the undyed silk fabrics was for 2% alum treated samples with the ΔE* value of 27.08±0.29. However, the values were not significantly different from the samples treated with FeSO4 mordant at 2% and 3% levels, CuSO4 mordant at 2% level and alum at 3% level. The change in chroma (ΔC*) value was maximum for the alum (2%) mordant (24.44±0.2). The analysis on colour fastness with respect to washing, rubbing and sunlight also indicated that all mordants and concentrations used in the study excepting 1% alum offered adequate fastness characteristics. The unmordanted samples exhibited moderate fastness. In view of the colour fastness with respect to washing, rubbing and exposure to light, the jackfruit bark dye can be applied on silk with any of the selected mordants at 3% level.
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Protected cultivation structures provide favourable environment for crop growth thereby achieving greater yield and high quality produce. Green house, polyhouse, shade net house & low tunnels are different types of protected cultivation structures, which are commonly adopted for crop cultivation. During extreme cold in winter season (November-February) vegetables can be grown under green house structure. Accurate irrigation scheduling in protected cultivation structures is one of the important factors in achieving high yields and avoiding loss of quality. The objective of this work was to evaluate the effect of protected cultivation structures (Poly house, shade net house and shadow hall) on temperature, relative humidity and water requirement of vegetable crops (Tomato, Cucumber, Capsicum, Cauliflower, Cabbage, Broccoli & Brinjal) with drip irrigation system grown during winter season (November-February). FAO-56 Penman Monteith approach was used to estimate the reference crop evapotranspiration under different kind of protected cultivation structures with different vegetable crops. Study shows that vegetable production in winter for sub humid region reduces due to fall in temperature below optimum level. Green house structure offers a solar energy saver and enhances temperature inside the structures. Daily average reference crop evapotranspiration value was found to be minimum for shadow hall (1.2-2.9 mm day-1) followed by polyhouse (1.3-3.2 mm day-1), shadenet house (1.4-3.7 mm day-1) and open field (2.0-4.9 mm day-1) condition. The total water requirement of drip irrigated vegetable crops in protected cultivation structure is reduced by about 35.6 %, 35.2 % and 25.5 % respectively under shadow hall, poly house and shade net house in comparison to open field cultivation.
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Bamboo has been used in many ways for food, building materials, artifacts and raw materials for production of pulp and paper products. As the destruction of natural bamboo resources increased the gap between the demand and supply of bamboo, there was a need to find suitable methods for large scale propagation of bamboo. Many researchers have worked towards achieving this goal, and the same are reviewed here. Vegetative propagation/ macro propagation is simple, easy, cost-effective, and involves the use of locally available materials. It is highly useful for sustained production of field plantable bamboo saplings in large numbers rapidly, perpetually and plentifully for any desired number of years depending upon the targets and the facilities available. It has also paved the way to many new avenues in the field of bamboo research. It is highly flexible as the mass propagation of bamboos can be undertaken from offsets, layering, culm cuttings or branch cuttings, and also extended to micropropagation through tissue culture techniques.
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Water conservation is a wide spread topic for research and discussion. Rajasthan is a dry state with a large arid and semi-arid area. Groundwater levels in region is increasing day by day due to overexploitation and lack of groundwater recharge measures. Precipitation in western Rajasthan is very low out of which maximum are wasted due to run off and infiltration. So, water conservation with storage structures are a solution to meet water demand of area. For water conservation there are many storage and conservation storage are used since a long time. Among these storage Tanka, Nada and Nadi are common structures used in western Rajasthan. Other than these traditional storage systems now-a-days roof rain water harvesting system is also popular due to its various advantages. Objectives of study are determination of different water conservation techniques in Rajasthan and there advantages with economic estimations of roof rain water harvesting system (RRWHS). We also discussed detailed analysis of conservation and restoration measures for traditional storage structures.
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Haldina cordifolia is a multipurpose tree species spread over moist deciduous forests in India. It possesses high timber quality suitable for flooring, paneling, railway carriages and construction works. It is also being used for medicinal purposes like curing of ulcer, malaria and abdominal disorders since ancient era. Though many phyto-chemicals and pharmacological compounds have been identified from this tree species, the species has not been domesticated so far. A detailed review on the status of this species is presented in this paper.
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Vegetables are well known for their nutritional and medicinal property but some of them contain certain components that are not desirable for human consumption. They are designated as anti-nutritional factors. Plant essentially use these compound as defense mechanisms against Herbivorous, insect pest, pathogens, etc., however, many of them are likely to the human being on consumption. Many popular vegetables cope like tomato, potato, spinach contain toxic compounds capable of apoptosis. Some are again neurotoxin like Choline-esterase inhibitor in pumpkin. Few vegetables even contain HCN which is capable to block the ATP synthesis. In this review, the major anti-nutritional factor in the vegetables and their impact on the body is being discussed.
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Mungbean (Vigna radiata L.) and urdbean (Vigna mungo L.) are major pulses crops predominantly cultivated during rainy season in northern and central India and during winter season in costal belt. In India, mungbean and urdbean productivity is constrained by a number of foliar and root diseases. Exploitation of host plant resistance for the development of high yielding varieties is the most economical and feasible component of integrated diseases management (IDM), hence remain a major objective of the crop improvement programmes around the world. The present investigation was undertaken to identify resistant donors against yellow mosaic disease (YMD) and therefore 200 germplasm accessions of mungbean and 100 of urdbean procured from ICAR-National Bureau of Plant Genetic Resources (ICAR-NBPGR), New Delhi and ICAR-Indian Institute of Pulses Research (ICAR-IIPR), Kanpur were phenotyped under natural field conditions, besides molecular characterization of viral pathogen and monitoring growth parameters. None of the mungbean and urdbean lines were found resistant to YMD during two seasons of the screening. However, 16 mungbean and 41 urdbean accessions manifested moderate resistant reaction, respectively and were identified as potential donors against MYMIV for utilization in breeding programme. These accessions also performed well with respect to growth parameters and grain yield. The sequence analysis of virus revealed 99.08 to 95.95 percent similarities with Mungbean yellow mosaic India virus (MYMIV) infecting distinct hosts from different geographical regions.
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Sesbania aculeata (Dhaincha) is a well known ‘green manure crop’ which is been widely used in organic farming as un-decomposed green manure to improve soil and crop productivity. The current study attempts to isolate and characterize (both morphologically and physiologically) Rhizobial symbionts collected from root nodules of five desi Dhaincha plants grown in five different regions of West Burdwan district, West Bengal, India. One isolate was chosen from each plant and they were designated as RW1-RW5. All of these five isolates were subjected to various biochemical tests and it was found that the strain RW3 was biochemically distinct from the other four isolates that put it in a different species category. All the five isolates were Gram negative; rod shaped bacterium and could ferment various carbohydrates as their carbon source. But it was to be noted that all the strains were weak fermenters for mannitol, the principal ingredient of the conventional YEM medium. Except RW3, all the other isolates were potent producers of amylase, an industrially important enzyme. The RW3 strain was the sole producer of cellulase, another enzyme of economic value. All the four isolates, excluding RW3 were obligate aerobic organisms giving positive results for both catalase and oxidase tests. The RW1 Rhizobial isolate was chosen at random for further physiological studies and it was found that its optimum temperature and pH for growth was 28 °C and & 7.0, respectively that reflected the typical features of Rhizobiaceae family. It was a non-halophile exhibiting maximum growth at only 1% concentration of NaCl. It was later subjected to large scale cultivation (5-10 liters of broth media) with a potential to be applied as a biofertilizer by designing a suitable broth medium instead of the normal YEM broth. 6% glucose yielded maximum biomass along with 1.5% MgSO4, 2% KH2PO4, 1% NaCl and 6% yeast extract as indicated by A540 of the inoculated medium after 48 hrs of growth. This modified medium such designed for biofertilizer production utilizing RW1 Rhizobial isolate could be considered for mass scale culture of the Dhaincha symbiont although field trials are recommended. Antibiotic Sensitivity Test on the RW1 strain revealed that the bacterium was most sensitive to streptomycin and kanamycin and was least affected by ampicillin as evident because of its Gram negative nature.
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Soil water and soil nutrient contents are the most important factors for crop productivity and agricultural sustainability. Water has become very scarce in rainfed agriculture and the cost of chemical fertilizers is increasing day by day. Nutrients availability and their translocation also reduce under limited water availability. Therefore, it is very important to manage both water and nutrient resources and to improve their use efficiency through environment friendly strategies. In the recent time, the use of zeolites has been emphasized in improving the physical and chemical properties of soils due to their high CEC, moisture holding capacity and etc. Zeolites are naturally occurring aluminosilicates with voids and channels in their inner structure, where water and nutrients are stored and exchanged. This characteristic of zeolites can be capitalized to enhance the use efficiency of fertilizers and water and to reduce the risk of environmental pollution occurring due to nitrate leaching and emissions of nitrous oxides and NH3. It is with this concern; the present review is focused on harnessing the potential of zeolites, for improving the water and nutrient use efficiency with reduced carbon foot prints.
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The cotyledon explants excised from in vitro grown seedling of Leucaena leucocephala showed organogenesis when cultured on B5 medium containing auxins and cytokinins individually or in various combinations. The various types of morphogenetic responses were callusing, rhizogenesis and caulogenesis. This is another report where micropropagation of leguminous trees is experimented through in vitro culture techniques, otherwise most of the leguminous trees are very much recalcitrant to such studies that has hindered the improvement of these plants through genetic transformation.
Abstract :Plant growth promoting rhizobacteria (PGPR) are known to influence plant growth by various direct or indirect mechanisms. Jaunpuri Giant Newar variety of radish was selected to study the PGPR profiling due to its peculiar growth features.The analysis of PGPR was based on their plant growth promotion (PGP) attributes, requirement of carbon substrates, amplified ribosomal DNA restriction analysis (ARDRA) and 16S rDNA homology. In search of efficient PGPR strains associated with radish cv. Jaunpuri Giant Newar rhizosphere, a total 115 isolates were randomly selected and screened for PGP attributes, out of which twenty isolates showing multifarious PGP traits were selected for detailed study. Metabolic characterization of representative strains revealed a large versatility with respect to carbon utilization. ARDRA revealed ten clusters composed of 1–5 strains. Based on 16S rRNA gene sequencing, the isolates were identiûed as Micrococcus luteus, Enterobacter cloacae, Bacillus subtilis, Pseudomonas sp., Agrobacterium tumefaciens, Leifsonia sp., P. aeruginosa, B. cereus, B. licheniformis, Nesterenkonia terrae. To the best of our knowledge, this is the first report from India as far as systematic, genetic and functional diversity of PGPR in radish rhizosphere region is concerned. Additionally, the generated information may serve as a baseline data for developing effective bio-inoculants to improve plant growth and biotic stress management of radish in an eco-compatible manner. Highlights • A total of 115 isolates were obtained from rhizospheric region of Radish cv. Jaunpuri Giant Newar. • Among115, 20 isolates showing multiple PGP traits were characterized by BIOLOG, RFLP and ARDRA. • Representative isolates from each group resulted from ARDRA were identified by 16S rDNA sequence homology. • Most of the identified isolates were related to genera Bacillus followed by Pseudomonas, Enterobacter, Agrobacterium, Micrococcus, Leifsonia and Nesterenkonia.
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The investigation was undertaken to identify desirable wheat genotypes at BC1 generation carrying leaf rust resistance alleles using molecular markers. The F1 was generated from cross NI5643 (lacking Lr34) × NIAW34 (carrying Lr34). The F1 was confirmed by using simple sequence repeats (SSR) marker gwm389. This F1 was used for crossing with recurrent parent NI5643 (lacking Lr34) and BC1 plants were produced. Twenty five BC1 plants were screened for the presence of Lr34, by using SSR primers. For this purpose markers from chromosome 7D i.e. cssfr1, cssfr2, KUDS, barc352 were used to screen parental genotypes. All these markers did not show polymorphism among parental genotypes. Therefore these were not used for foreground selection. Another marker from chromosome 7D, wms130 was used to screen BC1 plants for the presence of Lr34 (foreground selection). As per the SSR profile generated by primer wms130, the plants 1, 3, 4, 6, 10, 12, 13, 14, 15, 16, 18, 22 and 25 were found positive for Lr34. Another 10 markers i.e. gwm389, wmc313, wmc468, gwm610, wmc707, gwm60, wmc525, barc137, wmc419 and barc62 were used for background selection. The plants with heterozygous amplification pattern were selected for developing BC2 plants. BC1 plants that are heterozygous or positive for Lr34 using all the markers are 1, 3, 4, 6, 10, 12, 13, 14, 15, 16, 18, 20, 22, 23 and 25. Based on foreground selection and background selection, a total of 15 plants were found carrying desirable alleles and were used for developing BC2.
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National Programme of Nutritional Support to Primary Education (NP-NSPE) commonly known as Mid Day Meal Scheme was launched by the Ministry of Human Resource Development (Department of Education) with effect from 15th August, 1995. The programme is designed to give a boost to the universalization of primary education. It is helping poor children belonging to disadvantaged section to attend school more regularly and help them to concentrate on classroom activities. The present research aimed at studying the impact of Mid Day Meal Scheme (commonly known as Aksharadasoha) on enrolment and dropout rate of children in five rural government schools in Hassan district of Karnataka state. The field study was based on the observations of 208 children, 104 girls and 104 boys studying primary/ upper primary and high schools in which Mid-Day Meals Scheme was functional. The data was collected from government school records. In all 208 parents of the beneficiary children were selected and interviewed to collect information about their socioeconomic status. The results showed that majority of the parents had their primary and upper primary level of education, they were engaged in agriculture and allied activities and their annual income was less than Rs. 50,000. The study also revealed that there was continuous decline in the enrolment of children (both male and female) per session from 2011-12 to 2014-15 in government schools of Hassan district. The drop-out rate has been minimized to a large extent and from the session 2011-12 to the session 2014-15.
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The effect of biofortified vermicompost was studied on growth parameter and nutritional quality of tomato. Microorganisms used for fortification were Trichoderma harzianum, Pseudomonas fluorescens and Bacillus subtilis. Vermicompost was prepared by using temple waste and cow dung and earthworm Eisenia fetida was used in vermicomposting. The experimental findings showed significant variation in growth parameter and amount of antioxidants in treatments. The growth parameter such as root length, shoot length and dry weight was recorded after treatments. Maximum growth of plants was found in Vermicompost + T. harzianum treatment. Biochemical constituents of leaves such as total soluble protein, phenol, ascorbic acid and carotenoids were also recorded enhanced in treatments. Lycopene content in fruit was also increased in biofortified vermicomposts. Nutritional and antioxidants were recorded highest in vermicompost + P. fluorescens treatment.
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Brinjal (Solanum melongena L.) is one of the most economically important solanaceous vegetables in India. The crop is suffering severely from bacterial wilt disease caused by Ralstonia solanacearum (Smith) Yabuuchi et al. that considerably limits its cultivation and production. Symptoms of the disease in brinjal appeared usually at flowering and fruiting stage of the crop growth. Drooping of the top most leaves followed by total or partial wilting was common. Infected plants showed vascular browning. Variability of the pathogen was recorded in respect to their aggressiveness and pathogenicity. Presence of more aggressive isolates in Bahadurpur (BAHRS5) and Halsidanga (HALRS6) and moderately aggressive isolates in Mukundapur (MUKRS2) and Gorabari (GORRS3) may be due to higher cropping intensity of solanaceous vegetables. Stem incision appeared superior to the stem injection method for pathogenicity test through cross inoculation studies. No host specificity was observed among the isolates of the pathogen from brinjal, tomato and Amaranthus spinosus revealed race 1 while host specificity was recorded in case of the pathogen isolated from Costus speciosus revealed race 4.
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In recent years, there has been extensive investment in e-governance throughout the developing world. Still, little is known about the impact of those investments, partly due to a lack of assessment guidance. In this study modified sustainable livelihood framework approach was used for studying impact of the project on farmers. Before and after data was collected from the registered farmers using recall method to assess the impact of the project on all five types of capital (Natural capital, financial capital, human capital, physical capital and social capital). It was found that after implementation of the project, in the category of natural capital, average production and average sold quantity of rice, wheat, pigeon pea, mustard, and green gram has been significantly increased and in the category of financial capital, respondents’ average family income, earning from agriculture and allied sector and benefit from government schemes has been significantly increased and in the category of human capital, average number of training received by respondents and average number of extension contacts made by respondents has been significantly increased and in the category of physical capital, average storage facility has been increased by respondents and in the category of social capital, average number of meetings attended by respondents in Krishi Gyan Kendra has been significantly increased.
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Cultivating resistant varieties is the most feasible and economical way to manage biotic stresses including seasonal weeds. A large number of diseases, insect pests, nematodes and seasonal weeds are known to cause alarming losses in standing chickpea crop leading to varying level of economic losses depending on weather conditions and crop growth. Thus, development and use of multiple adversities resistant/tolerant cultivars as component of integrated biotic stresses management will certainly help in minimizing losses due to major biotic stresses. In past, several donors’ parents carrying gene(s) of interest possessing resistance/tolerance against major biotic stresses (mainly diseases) have been identified and utilized for the development of resistant varieties for different agro-ecological zones of the country. Exploiting host plant resistance in managing diseases of crops by way of developing resistant varieties remain top priority agenda in breeding programs and has paid dividends as well. Out of more than 250 high yielding varieties developed, more than 50 have high level of resistance against fusarium wilt and other diseases. It is worthwhile mentioning that for each agro-ecological zone varieties possessing fusarium wilt resistant are now available. The research on insect pests, nematodes and weeds remain at minimal or could not lead in release of varieties having sufficient level of tolerance. Thus, there is urgent need to take up research for development of multiple adversities resistant varieties of chickpea not only to sustain present level of productivity but also to improve it further. Field and laboratory based techniques for rapid phenotyping of germplasm and breeding materials against major diseases, insect pests (insect bioassay), nematodes and weeds are now available. At the same time, genomic resources are becoming available for enhancing efficiency of selection from large breeding populations. In present article status and strategies for development of multiple adversities resistant chickpea varieties have been highlighted along with future research priorities.
Abstract :The effect of Strontium chloride ranging from 5, 10, 20, 40 and 80 ppm on the mitotic activity and chromosomal behavior in root meristem of Allium cepa for 24h, 48h and 72h was studied. Accumulation of Sr2+ in the root meristem reduced the root growth of Allium cepa which was determined using Atomic absorption spectrophotometer (Perkin Elmer) using strontium lamp-68 at 460 nm.Concentrations higher than 20 ppm of Sr2+ applied for 24h were toxic for Allium cepa. The non-lethal concentrations of Sr2+ showed an inhibitory effect on cell division in root tips of Allium cepa and caused a decrease in their mitotic index values. All treatments changed the frequency of mitotic phases as compared with the control values. Sr2+ treatments produced a number of mitotic abnormalities in dividing cells in root tips of plants resulting from its action on the spindle apparatus such as C-metaphases, lagging chromosomes and multipolar anaphases and Binucleate. The induction of chromosomal stickiness and chromosomal aberrations such as bridges and breaks indicates its action on the chromosome. These abnormalities (chromosome breaks and chromosomal bridges at ana–telophases) indicate true clastogenic potential of the ions tested.
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Propolis has several pharmacological properties and safe alternatives to antibiotics. This study aims to address the impact of methanol extract of Indian propolis (MEIP) on milk yields and composition of six breeds and cross-breeds of cows. Bioactive compounds extracted from the raw propolis. 24 lactating cows were selected from six different types of breeds viz. Sahiwal, Haryana, Holstein Frisian × Sahiwal, Holstein Frisian Χ Haryana, Jersey × Sahiwal and Jersey × Haryana. They were randomly divided into four treatments with 6 replicates each and fed according to NRC (2001) with 0, 10, 20, 30ml MEIP/cow/day. The result showed that MEIP influenced the milk yield and composition of cows. The milk composition (%) was better (P<0.05) and the somatic cell count was lower in MEIP20 and MEIP30 compared to control and MEIP10. The response was greater in Sahiwal cows. The lowest (P<0.05) somatic cell count was observed in the Holstein Friesian × Sahiwal crossbred cows. The study concluded that the supplementation with MEIP, improved milk yield, milk composition and somatic cells count in other breeds except Holstein Friesian.
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Intercropping, an age old agricultural practice of cultivating two or more crops in the same space at the same time is generally adopted for more production by utilizing available growth resources. Choice of crops is very important to reap a better harvest from intercropping. The selection of a suitable intercropping system is sort of complicated issue as the success of intercropping depends much on the interactions between the component crop species, proper management practices and favorable environmental conditions. Intercropping has a huge potential and multiple advantages. The advantages are like efficient utilization of resources, enhancement of soil fertility by including legumes as component in mixture and soil conservation through covering the greater ground cover. Moreover, intercropping reduces attack of insect pest, checks the incidence of diseases and restricts weed population and thus minimizes the use of protection plant chemicals. This article addresses an overall view with a focus on prime advantages supported by evidences from the literature based on earlier research.
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Gall wasp, Leptocybe invasa, (Hymenoptera: Eulophidae), is a devastating pest of Eucalyptus plantations and nurseries. The pest causes galls on the midribs, petioles, and stem of tender shoots. In the present study detailed morphometric analysis with re-description, using twenty-six characters of gall wasp (female & male) have been given, which are distinctly supporting characters for the taxonomy and identification of Eucalyptus gall wasp.
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WaBcal is a calculator to prepare water budget of any discrete land unit. It is developed in C language and follows water budget norms proposed by National Agriculture Commission (1972,2002). Major input to the model is normal rainfall of that area and this is proportionately equated into surface flow, ground water flow, evaporation at various stages and magnitude, soil moisture etc. The calculator considers different water needs of the area which include demand from agriculture, domestic, livestock and industries. Total 27 field crop, nine vegetables and six fruit crop and six other crops are prevailing in Madhya Pradesh that may be used for computing agriculture demand. 18 Animals are considered for live stalk demand. Population gives domestic water demand. As an output the calculator gives water surplus/deficit of the study area.
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A field experiment was conducted at Agricultural Research Farm of Banaras Hindu University, Varanasi to investigate the resistance of mungbean genotypes against major sucking insect pests during kharif 2015. Results revealed that the mungbean genotype VGG 10-008 (4.98 whitefly/split cage) showed minimum infestation of whitefly and genotype MH 921 (8.77 whitefly/split cage) maximum infestation. In the case of jassid, maximum infestation was recorded on genotype LGG 460 (6.31 jassid/ split cage) and minimum jassid infestation was recorded on genotype DGG 6 (3.31 jassid/split cage). Genotype LGG 460 (2.93 thrips/10 flowers) showed maximum infestation of flower thrips and minimum in genotype DGG 6 (1.28 thrips/10 flowers). Genotype PM 10-18 (7.73 q/ha) produced maximum yield and genotype LGG 460 produced minimum yield (2.47 q/ha).
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Apart from insects, pests and diseases, physiological disorders are one of the major threats to fruit industry which cause economic losses worldwide. Many tropical and subtropical fruit crops (Mango, Banana, Citrus, Grape, Papaya, litchi, loquat etc.) are vulnerable to different physiological disorders like spongy tissue, chock throat, granulation, pink berries, bumpy fruits, fruit cracking and purple spot respectively. Adverse environmental conditions such as high or low temperature, moisture content, nutritional and hormonal imbalance, improper pollination or fertilization etc. cause abnormal external or internal conditions as well as abnormal growth pattern of fruits collectively known as physiological disorders. Most of the disorders associated with more than one factors like environment and nutrition but some disorders are mainly occur due to one factor only. So, there is need to understand the reason behind a particular cause and way to overcome it with a specific management approach. Among the nutritional disorders, the deficiencies of micronutrients (Zn, Bo, Mn etc.,) are more prevalent in Indian orchards rather than macronutrients. This review not only describes the cause of physiological disorders of fruit crops which lead to huge losses to fruit growers but also discusses the management practices to prevent it and retain the quality for higher market value.
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Water stress is the major abiotic constraint of cowpea production. The development of cowpea genotypes resilient to water stress is a practical approach to ameliorate the negative effects of water stress on the productivity. In the present study, a set of 20 genotypes of cowpea including 19 landraces collected from different areas of the Kashmir valley and one released variety viz, Shalimar Cowpea-1 released by SKUAST-Kashmir as check were evaluated under well watered and water stressed conditions.
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Curcuma longa L. commonly known as turmeric is used as a culinary spice in India and many Asian countries. Turmeric has anti-fungal, anti-bacterial, anti-malarial and anti-cancer properties to mention a few. We have analyzed the transcriptome of C. longa retrieved from NCBI SRA database (SRR495223) for the development and validation of EST-SSR markers and identification of EST-InDels to be used for C. longa and related genera. A total of 337 primers were developed and 20 primers having the rating of 100% with the help of NetPrimer were selected and used for PCR validation in C. longa, Amomum subulatum Roxb. (large cardamom) and Elettaria cardamomum (L.) Maton (small cardamom). It was found that around 50% primers generated PCR products in both types of cardamom and 85% in C. longa. The developed primers worked with curcuma, large cardamom and small cardamom plants at varying levels. Besides, the transcriptome analysis detected high amount of deletion and 18 addition of bases which could be screened through the development of CAPS markers using the tool SNP2CAPS and it was found that 93 restriction enzyme can be used for screening these InDels.
Abstract :A total of eighteen endophytic bacterial isolates from tea roots were screened for their multiple plant growth promoting activities including indole acetic acid production (IAA) production, phosphate solubilization, ammonia production and siderophore production. All the isolates subjected for characterization were IAA producers Production of IAA was found to be remarkable in ER7 (10.45 µg/ml), ER14 (11.80 µg/ml), ER15 (11.40 µg/ml) and ER17 (16.22µg/ml). Among the isolates, seven were siderophore producers, five were phosphate solubilizers and twelve were found to be ammonia producers. Proper implementation of these plant growth promoting endophytic bacteria will open a new area in organic tea cultivation.
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The objective of this study was to evaluate the influence of DPE and enzymes on performance of commercial broiler chicks. Two enzyme levels (without and with enzyme supplementation) were considered for the study. The experiment consisted of two replicates for enzyme groups. The performance of broiler was evaluated in terms of growth and feed efficiency at 6th week of age. Data were analyzed on survivor and equal number of bird’s per subclass basis. Analysis of variance revealed that the difference between replicates were not significant for the different traits under study as such all subsequent analysis was performed on combined sex basis. Inclusion of enzyme in diet had highly significant effect. Group of chicks fed with diet E (with enzyme) were significantly heavier than those fed with diet E0 (without enzyme) at second week body weight. It indicates that the enzyme supplementation had weighty effect on early growth of chicks. Inclusion of enzyme in diet had significant effect at third week age of body weight, the group of chicks fed with enzyme supplemented diet (E) had significantly higher body weight than the group fed without enzyme supplemented diet (E0). It indicates that inclusion of enzyme in diet had positive effects on growth of chicks. Inclusion of DPE and enzymes revealed significant effects on body weight. Chicks showed higher body weight with diet having DPE and enzymes.
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The aim of this study was to evaluate available micronutrient (Fe, Cu, Zn, Mn and B) status and their relationship with soil properties. In this work the status of micronutrient in soil of Solapur district area, Maharashtra, India is described The present study is mainly focused on testing of soil samples in Solapur district to determine their level of micronutrients and to provide information to the farmers regarding micronutrients availability in soil. The increment in nutrient supply beyond a certain limit resulting in the decreased yield of plants is often be associated with the production of specific toxic effects .The incidence of micronutrient deficiencies in soil and plants is increasing due to high and multiple plant. Extensive micronutrient deficiencies lead to decline in factor productivity even with balanced NPK fertilization. Although the crop response to micronutrients application varies with soil type, crops and genotype, agro-climatic conditions and severity of deficiency, an enormous response to micronutrient fertilization has been reported in a wide variety of crops including horticultural crops across the country.
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A laboratory experiment was performed to examine the effect of nano-TiO2 polymorphs priming on seed germination and seedling growth of french bean (Phaseolus vulgaris L.). Nano-TiO2 polymorphs i.e. anatase and rutile, were synthesized by the sol-gel method using titanium tetraisopropoxide as Ti-precursor and 2-propanol as solvent. Seeds of french bean were treated with nine different concentrations (in water) of each nano-TiO2 polymorphs (0, 0.10, 0.25, 0.50, 0.75, 1.00, 1.50, 2.00 and 2.50 %) by soaking in different concentrations suspension (prepared by ultrasonication method) for 24 hours. At the end of the experiment, the percentage of seed germination, seed germination index, seedling vigour index, root length, shoot length, number of lateral roots, seedling fresh weight, seedling dry weight were evaluated at 15 days following paper towel method. The results showed that increase in concentration of each nano-TiO2 polymorphs caused a significant increase in each study parameters. The best concentration of nano-TiO2 polymorphs was 2.50 %. The findings illustrated the beneficial effect of nano-TiO2 polymorphs priming on seed germination and plant growth of french bean.
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Thirty six basmati rice genotypes were evaluated under four production systems viz. Transplanted rice (TPR), System of rice intensification (SRI), Chemical free cultivation (CFC) and Wet direct seeded rice (Wet DSR) at RRS, Kaul, and RRS, Uchani (Karnal), CCS HAU, Hisar, Haryana during Kharif season of 2016 and 2017. The experiment was conducted using Randomized Complete Block Design with three replications. Yield stability and adaptability of plant height were analyzed by Eberhart and Russell’s and additive main effects and multiplicative interaction (AMMI) model. The environment, genotype main effects, and the GEI were all highly significant. The study indicated that the tested genotypes, such as Pusa 1734-8-3-85, SJR-70-3-2, PAU 6297-1, Pusa 1656-10-705, Pusa 1884-3-9-175, and Pusa-1884-9-12-14 had dwarf plant height, which indicated these genotypes adapted to favorable environments. Based on AMMI biplot analysis, the genotypes, Improved Pusa Basmati 1 and HUBR-16 with low mean and IPCA1 score close to zero, were identified as stable genotype and had general adaptation to all the environments.
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This study was undertaken to evaluate the antioxidant property and antibacterial activity of ethyl acetate extract of mature leaves and flower of the medicinal tree species, Anacardium occidentale and Mangifera indica. 2,2-diphenyl-1-picryl-hydrazyl radical (DPPH) free radical scavenging method and agar well diffusion method was used to detect antioxidant activity and antibacterial activity respectively. Various plant extracts of both the tree species studied were found to have potent antioxidant activity against DPPH and antibacterial activity against five human pathogens such as Pseudomonas aeruginosa; Salmonella typhi; Bacillus subtilis; Escherichia coli and Staphylococcus aureus. Therefore ethyl acetate extracts of mature leaf and flower extract of both A.occidentale and M.indica can be considered as a new potential source of natural antioxidants and antibacterial agent for pharmaceutical industries.
Abstract :Alternaria blight is one of the important fungal diseases of Brassica plant which leads to major yield losses as well as deterioration in quality. Plant responds toward fungal attack through intricate signal transduction pathways involving MAPKs. In the present study an effort was taken to delineate the MAP kinase pathway involving MAPK4 through in-silico interaction studies. Here we have reported that destruxin B has strong interaction with Lys M receptor kinase and Lys M receptor and toxin interaction was differential with different host. Lys M receptor kinase showed strong interaction with MAPKKK19. Out of ten MAPKKs known four MAPKK viz. MAPKK3, MAPKK5, MAPKK8 and MAPKK9 showed good interaction with MAPK4. Among these four interacting MAPKKs, MAPKK9 showed best interaction with MAPKKK19. At the downstream of the cascade MAPK4 showed strong interaction with WRKY 25 and WRKY 40.The results of the present study clearly indicate the role of MAPK4 in plant defense against Alternaria blight.
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A study was conducted during the fruiting season of Jalpai or Indian olive a minor fruit of West Bengal, so as to determine the physio-chemical properties of the fruits and evaluate the best accession. The fruits were harvested from distinct locations on North Bengal and were analysed for their bio-chemical properties. The results showed that all the different accessions possessed specific and distinct characters. The plant ACC-11 exhibited a very high value of TSS (7.07OB) followed by ACC-25 with a high TSS value of 6.9OB. ACC-24 showed high fruit weight of 20.83g compared to other accessions.ACC-30 was characterized with a highest value of total sugar (7.50%) along with high reducing sugar content (2.35%). The accession, ACC-20 not only showed high TSS value but was also distinguished with higher amount of total sugar content (6.85%). Similar trend was observed in ACC-29 where a high TSS (18.7OB), high reducing sugar (2.17%) and total sugar content (5.77%) were recorded. It can be established that the ACC-11, ACC-20 and ACC-29 accessions yieldeda superior quality of Jalpai whereas ACC-30 produces fruit with high sugar and acid content.
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Genetic diversity plays an important role because hybrids between lines of diverse origin generally, display a greater heterosis than those between closely related parents. Genetic diversity arises due to geographical separation or due to genetic barriers to crossability. In this study, genetic diversity of twenty two genotypes of wheat was evaluated for fourteen characters using Mahalanobis D2 statistics. The wheat genotypes were grouped into three clusters. The cluster III was the largest group which consist of 9 genotypes followed by cluster II (7 genotypes) and cluster I (6 genotypes). From the clustering pattern, it was found that the wheat genotypes were genetically diverse to each other. Hence, the genotypes studied are reliable enough for selection of parents making crosses. The maximum intra cluster distances were observed in cluster III (2.945) followed by cluster I (2.463) and cluster II (2.324). The selection of divergent genotype from above clusters would produce a broad spectrum of variability for quantitative traits studied, which enable further for selection and improvement. The maximum inter cluster distance was observed in between cluster I and cluster III (4.987) followed by between clusters II and cluster III (4.355) and cluster I and cluster II (3.717). This suggested that the hybridization programme involving parents from these clusters is expected to give higher frequency of better segregantes or desirable combination for development of useful genetic stocks or varieties.
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AMF have been mentioned in several literatures for long time for their beneficial role in crop growth and productivity. However, recently they are talked about for efficient abiotic stress management which received equal attention among researchers. Salinity is such an abiotic stress faced by crop plants that can be minimized by assistance of AMF. In this article, we have discussed the possible mechanism and the identified species of AMF for abatement of salinity stress of plants by citing some suitable examples, apart from the harmful effects in crop plants’ functioning due to salinity usually take place. Though there is lots of scope of further research, this illustrative piece of information may generate interest among farmers and other common people.
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Western Ghats is one of the eccentric biodiversity niches, with varied flora and fauna, in which fungi are one of the dominant group of microbes present in soil which strongly impact ecosystem structure. Hence there is a growing interest in assessing soil fungal biodiversity in Western Ghats and its biological functioning in production of various significant biomolecules. With the advent of new frontiers in the field of biotechnology the spectrum of cellulase and amylase has expanded in various industries, including food, fermentation, textiles, laundry, pulp, paper, agriculture as well as in research and development. The present study deals with the screening of fungal strains that amylase and cellulase which are industrially indispensable. The fungal strains were collected from the Western Ghats and were screened for initial multienzymes production. Thirty-two fungal strains were isolated among which eight were found to have both cellulolytic and amylolytic activity. Three fungal strains (TBG – 14, 5 and 4) were selected for further studies due to their capability in multienzyme production.
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Abstract :A field experiment was conducted at Naggar Farm of I.A.R.I., Regional Station Katrain, (Kullu Valley) H.P. during 2005-06 and 2006- 07 with cauliflower var. Pusa Snowball K-1. The experiment was laid out laid out in a randomized block design with 3 replications. There were ten treatments comprising of different sources of phosphorous. These were T-1 100% phosphorous ( Single Super Phosphate), T-2 100% Phosphorous (Rock Phosphate), T-3 50% phosphorous (Rock Phosphate) + Psolubiliser + Vascular Arbuscular Mycorrhizal (VAM), T-4 VAM, T-5 P solubiliser, T-6 100% Phosphorous (Rock Phosphate) + 15 t/ha Farm Yard Mannure, T-7 Liming + 50% phosphorous(Single Super Phosphate), T-8 15 t/ha Pine needle compost, T-9 15 t/ha Rice straw compost and T-10 control. The maximum curd yield were recorded with 50% P (R.P.) + P solubiliser + VAM (415.30 q/ha) followed by liming + 50% P (SSP 387.22 q/ha) and maximum growth were recorded with 50% P (R.P.) + P solubiliser + VAM 1339.73 cm2)followed by 100% P (R.P.) + 15t/ha FYM (1097.57 cm2).
Abstract :Jatropha curcas, is an upcoming energy source, which promises to mitigate energy crisis and environmental pollution. Jatropha seeds (0.4-12 tons/ha/yr) contain oil (30-40%) which is non edible due to the toxins such as phorbol esters, trypsin inhibitors,lectins and phylates. Various combinations of auxins with cytokinins were used for regeneration study. The best shoot regeneration (80%) was observed in MS medium supplemented with NAA (0.125ppm) and BAP (1.5ppm). Root induction was successfully obtained in plane MS/MS with auxins. Acclimatization and hardening was quite successful with survival rate of 60%.
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Abstract :Soil test crop response correlation involving integrated plant nutrition system (STCR-IPNS) studies on nitrogen (N), phosphorus (P) and sulphur (S) in wheat on an Inceptisol, New Delhi, India were carried out following Ramamoorthy’s ‘inductive cum targeted yield model’. After establishment of marked fertility gradient with respect to soil available N, P and S, four levels of fertilizer N, P, S and three levels of farmyard manure (FYM) were randomized in three fertility strips each having twenty four plots. Soil and plant analysis data were further used to compute basic parameters required for development of nutrient prescription equation. The nutrient requirement for producing one quintal of wheat grain yield was worked out as 2.26 kg of N, 0.40 kg of P and 0.54 kg of S.Soil available pool contributed 26.15, 50.06 and 52.55 % to total N, P and S uptake, respectively; contribution from applied fertilizer were 42.31, 25.12 and 46.39% and contribution from applied FYM were 27.95, 11.21 and 17.66% to total N, P and S uptake by wheat.Using basic data, fertilizer prescription equations and ready reckoner were developed for range of soil test values and desired yield targets for NPS alone and IPNS (NPS with FYM).
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A field experiment was conducted in participatory mode on farmers’ field in Sankumari village of Nabarangpur district under Eastern Ghat High Land (EGHL) zone of Odisha during kharif 2016 to assess the response of boron application on yield and economics of maize. The experiment was laid out in Randomized Block Design with four treatments replicated five times. The experimental soils were slightly acidic, non-saline, loamy sand, medium in organic carbon and available K; low in available N, P, B and Zn contents. The maximum grain yield per cob (210.21 g),100 seeds weight (38.16 g), stover yield (8.10 t ha-1), grain yield (6.52 t ha-1), total dry biomass (14.62 t ha-1), harvest index (44.59%) and B:C ratio (1.90) were recorded in Soil Test Based NPKZn @ 150:75:60:6.25 kg ha-1 + 0.5 kg B ha-1 soil application + 0.2 % borax as foliar spray at 30 & 45 DAS (T4) followed by Soil Test Based NPKZn @ 150:75:60:6.25 kg ha-1 + 1.0 kg B ha-1(T3) over control (i.e. Soil Test Based NPKZn @ 150:75:60:6.25 kg ha-1+ 0 kg B ha-1). Hence, Soil Test Based fertilizer application with boron is to be followed in soil deficient in boron under continuous maize growing areas of EGHL zone of Odisha for remunerative maize production by the farmers.
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Blast diseases cause economically important damage to rice. Protective treatments help producers to secure good quality crops. In contrast, curative treatments based on visually detectable symptoms are often riskier and less effective because diseased crop plants may develop disease symptoms too late for curative treatments. On the other hand, the effect of blast severity levels on crop physiology (greenness index and canopy temperature) and vegetation indices may help in early detection of rice blast. Keeping this view, a field experiment was conducted at ICAR-VPKAS, Almora to study the effect of different rice blast severity levels on canopy temperature, greenness index and hyperspectral vegetation indices with 10 rice genotype each for upland and irrigated condition. The extent of disease severity was rated 0-9 based on the extent of host organ covered by symptom or lesion. It was observed that canopy temperature and greenness index was significantly influenced by blast disease severity levels for both conditions. 8 different vegetation indices having higher correlation coefficient (>0.8) was calculated. The linear regression models were developed between these indices and disease score. Out of those, MTVI based model performed best for blast disease severity assessment having R2 and RPD value more than 0.85 and 2.58 respectively. So MTVI based model can be used for detecting rice blast.
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A set of 10 × 10 diallel crosses (excluding reciprocals) of Indian mustard along with their parents were evaluated to estimate general and specific combining ability of parents and crosses, respectively. The analysis of variance for combining ability revealed that variance due to gca was significant for all the characters except lenoleic acid and erucic acid. Whereas, variance due to sca was significant for all the traits except plant height, lenoleic acid and erucic acid. Magnitude of variance components of sca were higher than gca (gca/sca) for all the traits except plant height, oleic acid and erucic acid indicated preponderance of non-additive gene action for these traits. The estimates of general combining ability effects indicated that parents GM 1 and GM 2 were good general combiners for seed yield per plant and most of the yield attributing traits. Parents, SKM 9033, RSK 28 and GDM 4 for oil content, P. Mustard 21 and LES 45 for oleic acid, P. Mustard 21 and Dhara for lenoleic acid and P. Mustard 21 and LES 45 for erucic acid were found good general combiners. Cross combinations viz., GDM 4 × Dhara, SKM 9033 × RSK 28, GM 3 × LES 45, GDM 4 × EC 287711 and GM 1 × P. Mustard 21 were found good specific combinations for seed yield per plant and other desirable traits. Thus these cross combinations could be utilized in breeding programme for further amelioration of seed yield in Indian mustard.
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Finger millet (Eleusine coracana) is a main field crop in southern part of Karnataka commonly called ragi as it provides both stable food for the region and good fodder for cattles. Weeds management is a major problem in finger millet crop and are responsible for drastic reduction of yield. Weeding by traditional methods are laborious and time consuming which leads to high cost of production. Pertaining to this, blade type simple mechanical weeder was developed and evaluated under finger millet crop with 2 and 4 blade harrows for weeding 2 and 4 rows at a time respectively. The results obtained at 2 rows and 4 rows weeding condition, the weeding efficiency (88 & 85 %), plant damage (2.5 & 3.6 %), effective field capacity (0.108 & 0.144 ha/h), field efficiency (90 & 60 %), fuel consumption (4.181 & 3.424 L/ha) and cost of weeding (` 572 & ` 447.42 ha) respectively.
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Coleus sp. is one of the most important tuber crops of South East Asia. Pollen grains being sterile in the plant, vegetative propagation are the only method to carry out reproduction. However morphological and genetic variability are relatively absent by normal vegetative reproduction. Thereby tissue culture techniques of micropropagation through axillary shoot proliferation, organogenesis and shoot embryogenesis can improve the genetic constitution of the crops. For axillary shoot proliferation, nodal explants and for organogenesis and callusing leaf explants of Coleus parviflorus and Coleus forskohlii were used. Furthermore salt tolerant lines were tried to raise using different concentration of NaCl with normal MS media. Morphological and biochemical changes associated with the in vitro regenerated types were investigated to maintain the “true to type” propagation. RAPD analysis to find out variation between DNA of both in vivo and in vitro plants were carried out using OPA 11 and OPB 07 primers. The rate of multiplication was found to be higher in media supplemented with NAA, BA and GA3. Callusing from leaf explants was found to be very low in media supplemented with only GA3. Bud break and shoot multiplication was affected by higher concentration of NaCl at 10gm/l and 20gm/l. Evaluation of biochemical constituents revealed no variation in dry matter, starch and sugar content of regenerants and conventionally grown plants. RAPD analysis exhibited no variation in DNA between the in vivo and in vitro plants
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Abstract :The rate of loss of natural habitants including forest and bioresources are not only a serious but a complex issue due to several reasons viz. deforestation, agricultural land degradation, ignorance of people, escalating population density, immigration of people toward urban areas etc. On the other hand forest and bioresources offer a variety of habitants for plants, animals and microorganisms. Therefore, conservation and sustainable use of bioresources is the need of the hour. The preference of conservation methods and technologies depends upon the prevailing objective, conservation efforts, breeding methods, adoption and behaviour of the species in question as well as available resources including funds, infrastructure, trained personal, and technologies. The biotechnology implies an approach of creation, invention and innovation. Biotechnological tools can be used to improve and conserve agriculture, horticulture, animals, medicine and environment. In the present article, conservation of bioresources has been highlighted covering multifaceted tools of biotechnology viz. plant genetic resources, micropropagation, in vitro conservation, cryopreservation, tissue culture, molecular markers, somatic hybridization and genetic engineering.
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Nigeria’s major ecological zone have been reportedly altered by changes in climate over the last century. Biodiversity such as terrestrials, marines, freshwaters and other ecosystems including forests and agricultures have been tremendously impacted. These impacts have caused increase in desert encroachment, diseases occurrence, floods, erosion and a rising heat waves in the county. Several literatures have also reported the displacement of millions of Nigerians as a result of rise in sea levels and droughts in some parts of the country due to changes in climate. More also, the growing fluctuations in temperature, rainfall, among others are likely to have adverse impacts on the country’s economy since agriculture employs over 70% of its population. Hence, if these climate challenges are not effectively address, it could deplete or shorten the already limited natural resources in the country. It is against this background that this article reviews the current impacts of climate change in Nigeria. It also indicates the group of Nigerians who are highly vulnerable to the climate change impacts. It also explains the major areas and sectors which will experience the most impact of changes in climate in Nigeria. It further highlighs the challenges to climate adaptation in Nigeria. It ends by highlighting necessary adaptation strategies and calls the Nigerian government, international organization, civil societies and private sectors in the country to work together in scaling up these adaptation strategies in the country.
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Abstract :The increase in the biofuel production has generated a lot of byproducts. These are rich in various plant nutrients. The laboratory incubation can provide an idea of their effects on soil and environment, and fertilizer applicability before field application. In the present study, two types of biogas byproducts were selected as biochar and digested liquid. Two concentrations of each was applied to the paddy soil (Regosol), and incubated under the submerged conditions. Biochar treated soil produced the highest methane and carbon dioxide than the untreated soil due to high carbon content. Digested liquid treated soil produced the lowest concentration of both gases even lower than the control. It may be because of toxic effects of ammonium-N on methanogens. Digested liquid treated soil produced the highest nitrous oxide; whereas difference was not significantly different for the control and biochar treated soil. However, cumulative production of each gas showed that production of nitrous oxide was negligible in each treated soil due to the waterlogged condition. As expected, each treated soil produced little nitrate under this experimental set up.
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Ohmic heating is a novel and alternating thermal processing technology wherein food materials are heated by passing electric current through materials. Ohmic heating has extreme potential for achieving rapid and uniform heating in foods, providing microbiologically safe and high quality foods. Ohmic heating presents a wide range of potential applications including pasteurization, sterilization, aseptic processing, cooking, thawing, blanching, evaporation, extraction, fermentation, and in the military field or long-duration space missions. This review discusses the brief history, basic principle, some process parameters, applicable food products, potential commercial applications and current industrial status of ohmic heating in food industry throughout the world. The review also highlights the scope and work done on ohmic heating in India. The corrosion problems in electrodes and heterogeneous heat generation rate and distribution are interesting area for further research. Ohmic heating is a good comparable with the other ideal technologies like microwave heating, radio-frequency heating and induction heating. More and intensive investigations are required to assess performance and to reduce the overall cost of ohmic heating for viability of commercial application of this technology also in developing countries like India.
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Pesticides are the chemical or biological substances used to kill or repel targeted organisms. Pesticides are applied to the environment with the aim of suppressing the impact of plant and animal pest and to protect agricultural and industrial products (Dey et al. 2013). Exposure to pesticide results in both acute and chronic health problems which range from short term to long term effects. Keeping this in view a study was conducted to know the effect of pesticide use on the health of farming community in Dharawad taluka, Karnataka state. A survey was conducted by interview method from 130 farmers in three village of Dharawad taluka and information regarding health effects and use of personal protective clothing while spraying pesticides was collected. Majority of the farmers are suffering from various health problems like headache, dizziness, vomiting, nausea, burning vision, itching of skin burning of hands, excessive salivation and watery of eyes. All these problems are related to the indiscriminate handling of pesticides by the farmers. Use of protective clothing while spraying pesticides would help the farmers to come out from these problems.
Abstract :A rapid precise and accurate method was optimized and validated for the simultaneous determination of 6 PAHs (naphthalene, acenaphthalene, phenanthrene, fluoranthrene, anthracene and pyrene) in water by HPLC and their distribution in surface water (water from Yamuna river in Wazirabad and Okhla region and Aakulam lake, Kerala) were undertaken. The High-Pressure Liquid Chromatography (HPLC) separation of 6 PAHs was carried out by C-18 column with gradient elution of acetonitrile and water with diode-array detection (DAD). The method was optimized by using liquid–liquid extraction (LLE) with different solvent like hexane, dichloromethane and ethyl acetate and extract cleaned by adsorption column cleanup using different adsorbent like silica gel, alumina and florisil. Among the three solvents used for LLE, dichloromethane gave maximum extraction efficiency (70.27- 91.09%). For the cleanup of water extract, a florisil column using 20:80 acetone:hexane as the eluting solvent gave recovery of 91.2- 97.2 µg and 8.9-9.6 µg at 100 µg and 10 µg of PAHs loaded in the column, respectively. The total method recovery using dichloromethane as the extracting solvent and 20:80 acetone: hexane as the eluting solvent for florisil column clean up varied from 71.02-89.74%. Limit of detection (LOD), limit of quantiûcation (LOQ), and correlation coefficients were found in the range of 0.1 to 1.5 ìg L-1, 0.5 to 4 ìg L-1 and 0.994 to 0.999, respectively. No residues of PAHs were detected in any of the water samples other than the Okhla water samples. The PAHs detected in Okhla water sample were phenanthrene (3.51 µg L-1) and fluoranthrene (4.61 µg L-1).
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Lead (Pb) has phytotoxic and toxic effects on plants and animals. Leafy vegetables accumulate this element resulting in enrichment along the food chain. Silicon has beneficial effects in enhancing plants’ tolerance to biotic and abiotic stresses including heavy metals such as Pb. The study was carried out under greenhouse and field conditions aiming at determining the effects of silicon on transfer, mobility, and uptake of lead by leafy vegetables (spinach, kale, and amaranths). The greenhouse experiment was carried out as a split-plot arranged in Completely Randomized Design (CRD). The vegetable species were allocated to the main plots whereas the treatments (Pb, Pb+Si, Si, and Control) were assigned to the subplots. The field experiment was sited in polluted soils, and treatment included control and Si, applied to spinach, kale, and amaranths. Data was collected on Pb concentrations in roots, stems, and leaves, transfer factor, mobility index, and uptake of lead by leafy vegetables. Lead concentration was highest in roots, intermediate in stems, and least in leaves. Silicon application reduced concentration, transfer factor, mobility, and uptake of lead by 20, 40, 15, and 24%, respectively. The lead transfer factor and translocation index was less than one. Pearson correlation coefficient indicated a strong positive correlation between lead concentrations in soils and plant tissues of leafy vegetables. Application of silicon on polluted soils reduced transfer and mobility of lead in edible tissues of leafy vegetables. The study recommends silicon application to reduce the concentration of lead on vegetable tissues, however, it recommends against vegetable production for human consumption on polluted soils.
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In present study thermo-hydraulic design method by Paepe and Janssens (2003) was illustrated and used for evaluation of single pass Earth- Air Heat Exchanger (EAHE) system. Such designed EAHE was installed at the research field of Soil and Water Engineering Department, Punjab Agricultural University, Ludhiana, India (75o88´E & 30o95´N). It consists of 42 m single PVC pipe of 0.25 m diameter buried at 3.5 m depth. The thermister 2k temperature sensors and Dl2 data logger were used for data recording. The maximum and minimum tube efficiencies were obtained at 2.3 and 24 m/s, respectively. The thermo-hydraulic designed earth air heat exchanger performed well as observed tube efficiency was near to designed efficiency. It was also observed that as velocity increases the tube efficiency decreases. The method proposed by Paepe and Janssens (2003) was simple, fast and reliable for installation of EAHE system in field too.
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One hundred and twenty rice bean genotypes were assessed for 11 agronomic traits against three different elite varieties RBL-6, RBL-35, RBL-50 in Augmented Design during the Kharif 2005. There was no significant difference among the blocks and as well as checks. The variety RBL-50 among the checks registered highest seed yield (q/ha). The nineteen test entries viz. BRB10, LRB115, BRB06, BRB15, LRB109, BRB19, BRB14, LRB081, BRB08, BRB01, BRB03, LRB110, LRB118, BRB09, BRB07, BRB05, LRB043, LRB020, LRB075-1 showed higher seed yield (q/ha) than the best check variety RBL-50 (9.21 q/ha).
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The present study was carried out to identify stable Maize hybrids across various environments as the performance of each hybrid tends to vary when grown in different seasons or locations. Twenty one Maize hybrids and two commercial checks were tested over three locations in India viz., Viluppuram, Trivandrum and Nagercoil. Eberhart and Russell model of stability analysis was carried out which revealed a significant effect of each environment on the hybrids taken, for all the ten morphological traits except the number of leaves. The hybrid AU-101 was identified as a stable hybrid with high mean under less favourable conditions and the hybrid AU-114 was recognized as a stable hybrid under favourable conditions. None of the check hybrids viz., CP-818 and Bioseed-TX369 showed stability in any of the environment. Thus, it emphasized t
Abstract :A study was conducted to evaluate the performance of three rhizosphere competent microbial strains, viz., Pseudomonas fluorescens OKC, Trichoderma asperellum T42 and Rhizobium sp. RH4, individually and in combination in bioprimed seeds of chickpea and rajma. Seeds were sown in pots and fields and the results demonstrated that bioprimed seeds showed higher germination percentage, and better plant growth in both the crops compared to non-bioprimed control plants. It was also observed that the combined application of the microbes enhanced seed germination and plant growth better than their individual application.Among the combinations all combinations comprising of Trichoderma showed better results compared to the others and the triple microbial combination demonstrated best results in terms of seed germination and seedling growth in both chickpea and rajma.
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A field experiment was conducted to find out the effective dose of some newer insecticides for the management of sucking insect pests of green gram. The treatments of experiment were Diafenthiuron 50 WP @ 187.5g a.i./ha, Diafenthiuron 50 WP @ 250g a.i./ha, Diafenthiuron 50 WP @ 312g a.i./ha, Spiromesifen 240 SC @ 90g a.i./ha, Spiromesifen 240 SC @ 120g a.i./ha, Spiromesifen 240 SC @ 150g a.i./ha, Sseed treatment with Thiamethoxam 35 FS+ Thiamethoxam 25 WG @ 3g/kg seed+25g a.i./ha, Thiamethoxam 25 WG (Std. Check) @ 25g a.i./ha and Triazophos 40 EC (Std. Check) @ 500g a.i./ha. The results of experiment revealed that Diafenthiuron 50 WP @ 312g a.i./ha was most promising treatment in reducing population of whitefly (Bemisia tabaci), jassid (Empoasca kerri) and flower thrips (Caliothrips indicus) after both sprays followed by Spiromesifen 240 SC @ 150g a.i./ha as compared to standard checks Thiamethoxam 25 WG @ 25g a.i./ha and Triazophos 40 EC @ 500g a.i./ha.
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Contents: International Journal of Agriculture, Environment and Biotechnology March 2019
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Abstract : Incidence of Foot rot disease of Elephant foot yam [Amorphophallus campanulatus Blume, syn: A. paeoniifolius (Dennst.) Nicolson] caused by Sclerotium rolfsii Sacc. is common in West Bengal. Occasionally it causes severe damage of the crop. When Plaster of Paris used on the diseased tissue in standing crop, it showed strong adverse effect on mycelial growth and survival of sclerotia. White mycelia and sclerotia produced on disease tissue lost their viability. Plant with small lesion grew normally indicating that the disease was checked without causing any phytotoxic effect. Plaster of Paris of commercial grade (CaSO4.½ H2O), available in synthetic bag in hardware shop. In laboratory test on viability of sclerotia, Plaster of Paris showed similar adverse effect. Eight fungicides (Indofil M-45, Bavistin, Blitox, Vitavax Power, Kavach, Curzet, Krilaxyl MZ) used in this test reduced sclerotial germination. Vitavax Power (Carboxin 37.5% + Thiram 37.5% WP) totally inhibited sclerotial germination. Kavach (Chlorothalonil 75%) and Krilaxyl MZ (Metalaxyl 8% + Mancozeb 64%) reduced germination upto 95%. Application of Plaster of Paris at three different doses at the base of the plant (2.0, 5.0 and 10.0 grams/plant) did not cause any phytotoxic symptoms like necrosis, epinasty, hyponasty, wilting, leaf tip injury, leaf surface injury, vein clearing, rotting at collar region on six different crops i.e. elephant foot yam, groundnut, brinjal, chilli, basella and radish. Hence, it may be incorporated in Integrated Disease Management (IDM) programme.
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Disease management of crops significantly contributes to increase in food production to keep pace with the growing human population. The applications of recent developments in biotechnology are imperative for detection, identification, prevention and control of plant diseases. The use of biotechnology also opens up the possibility to produce disease free plants by tissue culture, besides conferring resistance against several diseases that affect important crops through conventional breeding and/or genetic engineering. Although the debate about various facets of biotechnology often circle around the economics, risks and consequences associated with use of various approaches, but what matters most is how they are used.
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Among soil microorganisms, yeasts have received little attention as bioonoculant and biocontrol agents in comparison to bacterial, actinomycetes, and filamentous fungal antagonists. The ability of certain taxa of yeasts to multiply rapidly, to produce antibiotics and cell wall-degrading enzymes, to induce resistance of host tissues, and to produce plant growth regulators indicates the potential to exploit them as biocontrol agents and plant growth promoters. We investigated the ability of the soil yeast Rhodotorula sp. and Candida tropicalis to stimulate plant growth promoting characters and biocontrol potential. In vitro culture experiments found that Rhodotorula sp. SY3 (623.14 ug/ml with tryptophan: 150.12 ug/ml without tryptophan) and Candida tropicalis SY5 (580.25 ug/ml - with tryptophan: 120.24 ug/ml - without tryptophan) produces large quantities of indole acetic acid (IAA), but grows rapidly on aminocyclopropane-1-carboxylate (ACC) as a sole source of nitrogen, indicative of high ACC deaminase activity. The strain also tested positive for hydrogen cyanide production, solubilisation of phosphorus and zinc. The yeast isolates significantly inhibited the Alternaria sp. and Colletotrichum sp. pathogen with Per cent inhibition of mycelial growth over control ranging between 32% and 55%. The application of the yeast crude extract could suppress population of M. javanica under laboratory conditions. In conclusion, our data confirm that soil yeast strains can promote plant growth and control pathogens, it could be considered for the development of biological fertiliser treatments.
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It has been stated that anaemia affects 30% of the world’s population, according to the World Health Organization. Iron fortification in food is the most efficient approach of relieving iron deficiency condition, according to research. Because iron fortification manifests itself in food in the form of colour, flavour, and general acceptability, researchers are attempting to increase the nutritional value of food without compromising the sensory aspects of iron fortified food products. A large number of researches have shown that yoghurt is the most effective vehicle for iron fortification in this approach. This study discusses the fortification techniques and diverse sources of iron utilised in the development of iron fortified yoghurt, as well as the influence of these methods and sources of iron on the physico-chemical and sensory aspects of the yoghurt. It is anticipated that the general concept of iron enrichment in yoghurt will lead to improvements in iron fortification in the near future.
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The agrarian system of our country is in state of transition from subsistence oriented to commercialization. The modern farming system is gradually becoming unsustainable and the increasing problems of chemical agriculture, cost of cultivation and upsetting environmental as well as health impacts have many negative impacts over agrarian society. Unemployment and underemployment are two major constraints in generating livelihood options for young farmers. Agripreneurship has been recognized as an effective means for economic transformation and poverty reduction. More than sixty per cent of India’s arable land is under traditional agriculture where use of synthetic inputs are strictly avoided. Young farmers are active stake holders in the agripreneurship design and are enable to transform rural communities in a sustainable basis. Tribal youth form a considerable part of country’s tribal population and they lag behind their urban and rural counterparts with respect to education and training as they reside in hilly and undulating forest areas. High and rising levels of unemployment among the tribal youth force them to choose unorganized sectors. Despite having ample scope in several agricultural enterprises, unmatched skill sets of tribal youth force them to undertake labour operations. Tribal youth are tomorrow’s entrepreneurs, innovators and indeed leaders. Thus, this review focusses on agripreneurship development among tribal young farmers in organic farming, challenges of tribal youth in undertaking organic farming as agribusiness and solutions to eradicate the same along with a potential case of Odisha supporting the context.
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Abstract :A study was conducted on the fungal diversity in the home gardens of three important districts of Kerala. The rhizosphere and rhizoplane samples were collected from different homestead crops representing diverse and distinct areas of coastal region (Ernakulum district), High range (Wayanad) and Dry region (Palakkad district) districts of Kerala. Fungal population was highest (82 x103 cfu g-1 of soil) in black pepper (Wayanad) followed by coconut (70 x 103 cfu g-1 of soil) in Ernakulam and 22 x103 cfu g-1 of soil in banana (Palakkad). There was greater diversity of fungi in the homesteads of Ernakulam, Wayanad and Palakkad districts. In all the three districts surveyed, Penicillium sp. and Aspergillus sp. were predominant fungi in most of the crops and or locations, even though other fungi were also recorded. However, there functional diversity needs to be studied and harnessed in order to assess the beneficial effects and relative efficiency on the host plants.
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Considering the high economic worldwide loss due to the post-harvest decay of fruit and vegetables, and the frequent development of pathogen isolates that are resistant to synthetic fungicides, there is a need to develop more eco-friendly alternatives for controlling post-harvest diseases. Irradiation (Gamma and UV-C) is one such physical method which is promising, but when used separately is not as effective as fungicides. Therefore, to improve its effectiveness and persistence, irradiation method can be combined with other complementary control measures such as sodium carbonate, heat treatment, chemicals, cold storage and bio-control agents as apart of integrated disease management strategies. Low doses of UV radiation, particularly UV-C have proven to be effective in delaying ripening and senescence, diminishing decay and even in increasing the content of beneficial compounds owing to its germicidal properties. It mainly inactivates microorganisms, especially pathogens by creating damage in the genetic material (DNA) of the cell. These methods can be efficiently used to delay the ripening of fruits, to inhibit germination, improve nutritional quality, minimize insect infestation and deactivate viruses. Short shelf life of mushroom can be extended by inhibiting cap opening and browning, stalk elongation, reducing the level of microbial contamination and finally by increasing the concentration of vitamin D2 significantly, without causing any adverse effect on its taste. This review deals with the information of maximum benefit which can be achieved from irradiation technology, and when combined with other chemical and physical methods with integrated strategy will provide synergistic effects for post-harvest disease control.
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This study aimed to evaluate the effect of Farm Yard Manure (FYM), mineral fertilizers (nitrogen and phosphorus), and their combination on the production of Gadam sorghum in a Kenya Semi-arid region of Makueni and Machakos counties. The first experiment evaluated the response of sorghum to N and P application at four levels (0, 25, 50, 75 kg ha-1) whereas the second evaluated the response of sorghum to the combined application of FYM (0, 5, and 10 tons ha-1) and N and P fertilizer (0 and 50 kg ha-1). Nitrogen application enhanced sorghum yields more than phosphorus addition. Combining N at 75 kg ha-1 and P at 50 kg ha-1 gave the highest sorghum grain yield in Kampi ya Mawe which was 135% higher than the control. In Katumani, combining 50 kg ha-1 N and 25 kg ha-1 P gave the highest mean grain yield, which was 68.3% more than the untreated control. In the follow-up experiment (Kampi ya Mawe), combining FYM with NP fertilizer (50 kg ha-1 N & P and 10 t ha-1 FYM) gave the highest yield; 13.7% more than the control. At Katumani, however, combining FYM at 10 t ha-1 and 50 kg of N and P resulted in insignificant differences in grain yield compared to the untreated control. Nitrogen use efficiency (NUE) was optimal at 50 kg ha-1 N and declined at 75 kg N ha-1. Similarly, phosphorus use efficiency (PUE) was highest at 50 kg P ha-1. Based on the results, it’s evident that the integration of organic and inorganic nutrient sources enhances sorghum yield.
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Storage at 10°C with 93% RH was evaluated as the best condition to maintain the post-harvest quality of the Dragon fruit. These fruit retained the lowest weight loss i.e. around 0.3% per day inside the cold room. While an average weight loss of 2.6% per day was measured during post-storage period. Fruit stored inside cold room of Ecofrost retained a maximum storage life upto 15 to 17 days and the post-storage life was recorded as 3 to 4 days. Shelf-life was recorded as 2.5 days in ordinary room conditions. Fruit stored at 10°C had 100% decay incidence after five days in ordinary room conditions.
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Brinjal holds a distinct place in the domain of vegetables. The production and productivity is extremely lowered by the interference of borers and sap feeders. An experiment was conducted to evaluate the efficacy of different botanicals on the sucking pests of brinjal viz., leaf hoppers (Amrasca biguttula biguttula Ishida), whitefly (Bemisia tabaci Gennadius), mealy bug (Phenacoccus solenopsis Tinsley) and red spider mite (Tetranychus urticae Koch) during March - July, 2021. The results on the evaluation of aqueous extracts revealed that the commercial formulation Azadirachtin 0.003 EC was identified as an effective treatment (46.70% -75.84%) against the infestation of sucking pests. Among the aqueous plant extracts, Neem Seed Kernel Extract (NSKE) 5% showed 63.48% reduction of leaf hoppers, 64.48 % of whitefly, 43.72 % of mealy bug, 42.68 % of red spider mite. Next effective results were obtained from Ginger, Garlic and Green chilli (3G) extract with 61.75 % population decline of leaf hopper, 57.86 % of whitefly, 41.35 % of mealy bug and 36.78 % of red spider mite. Citrullus extract 5% was found to be a moderately effective treatment with 49.20% mortality of leaf hoppers, 46.87% of whitefly, 39.20 % of mealy bug and 26.27% of red spider mite. The standard insecticide check Thiamethoxam 25 WG was found to be superior in keeping the sucking pests population under check (62.15 % - 81.16 %) than the other aqueous extracts. The hierarchy of effectiveness was in the order of Thiamethoxam 25 WG >Azadirachtin 0.003 EC > Neem Seed Kernel Extract 5% > Ginger, Garlic and Green chilli3G extract 5% > Citrullus extract 5% > 3G extract 3% > Panchakavya 5%.
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Pre-storage seed invigoration treatments in freshly harvested soybean seeds with powdered crude plant materials (red chilli powder @1g/kg of seed), chemicals (para-amino benzoic acid and ferulic acid @500mg/kg of seed) in combination with fungicides like captan@2g/kg of seed, thiram @2g/kg of seed and bio fungicide Trichroderma viride @4g/kg of seed significantly improved germinability, field performance and productivity over untreated control. Among the treatments, ferulic acid and red chilli powder has shown better results in improving storability and field performance. Seed protectants alone did not show significant differences. But captan incombination with ferulic acid has shown higher germinability and field performance than the control and other treatments. Biochemical studies revealed that pre-storage dry treated seeds with fungicidal formulations showed the activity of dehydrogenase, catalase and peroxidase enzymes were higher in all dry treated seeds compared to the untreated control. Among the treatment, ferulic acid and red chilli powder formulated with seed protectants viz. captan and thiram has shown higher enzyme activity. On the basis of the results, dry physiological treatments, ferulic acid and red chilli powder formulated with seed protectants captan and thiram suggested for improved storability and field performance of stored soybean seed. The interaction effect between physiological treatments and seed protectants were positively correlated.
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Onion (Allium cepa L.) is one of the important bulb crop and most important commercial vegetable crops cultivated extensively in India and it accounts for 90 per cent of the exported vegetables from India in terms of value. The production ofbulbs and seeds is limited by certain diseases. The most serious one is the purple blotch caused by Alternariaporri (Ellis) Cif. The disease causes extensive damage to bulbs as well as seed crop and also a major limiting factor in cultivation of onion. In view of the destructive nature of purple blotch of onion the present investigation was conducted through survey to know the disease incidence or severity and collection of infected samples. A survey was conducted during kharif 2013-2014 in onion growing areas of Northern Karnataka viz., Bijapur, Bagalkot, Gadag and Dharwad districts. The highest per cent disease index was noticed in Ilkal village of Bagalkot district. While, the lowest per cent disease index was noticed in kerur village of Bagalkot district. Among the districts, severity of disease was more in Bijapur and less in Gadag.Isolation was made from onion leaves showing typical purple blotch symptoms. Pure culture of A. porri was obtained and its pathogenicity to onion plants was proved. On the basis of isolation and morphological studies, the pathogen was identified as Alternariaporri (Ellis) Cif.
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A study was conducted to understand the knowledge level of fish farmers on scientific Pengba farming practices in the valleys of Manipur. Imphal West, Bishnupur, and Thoubal districts were purposively selected based on the higher concentration of Pengba farmers. After consultation with Department of Fisheries, Government of Manipur and with the village key informants, a total of 80 respondents were selected for the study. Primary data were collected through pre tested and structured interview schedule. Analysis of the collected data showed that majority (50%) of the respondents had medium level of knowledge towards scientific farming of Pengba. It was found that majority of the respondents had good knowledge of stocking appropriate size of Pengba in grow out ponds with a mean score value of 0.97. The study also revealed that the socio personal and socio economic characteristic such as age, experience in fisheries activities, annual income from Pengba farming and scientific orientation had significant relationship with the extent of knowledge level of the fish farmers towards scientific farming of Pengba at 5 % level of significance.
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A study was carried out by the Gramin Krishi Mausam Sewa (GKMS), Malkangiri, Odisha during 2020-21 to verify the usability of medium range weather forecasts along with impact of weather based agro advisories on rice and groundnut. Results of the study showed high degree of accuracy of forecast (usability) for different weather parameters (except rainfall in monsoon season, minimum temperature in winter season, morning relative humidity in winter season and afternoon relative humidity in pre-monsoon season). On other hand, those farmers followed weather based agro advisories (AAS farmers) recorded 7.94 and 14.22% more yield in rice and groundnut, respectively as compared to non-users of weather based agro advisories (non AAS farmers). AAS farmers also received more economic return from rice and groundnut. Thus, accurate weather forecasts helped the farmers in decision-making on the crop production operations and application of weather based agro advisories were useful for enhancing the production and income from rice and groundnut in studied region.
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In the present investigation was carried out to access the floristic structure, composition and functional characteristics of homegardens in Garhwal region, Uttarakhand during 2013-14. Here, we had selected two districts on the basis of maximum (Uttarkashi) and minimum (Rudraprayag) geographical area of the state. The result showed that floristic tree diversity was maximum contributed by agroforestry crops (64%, 53.84%, 62.5%, 66.7%) and followed by horticulture crops (36%, 46.16%, 37%, 33.3%) with respect to Malkhi, Khumera, Kurura and Panchan gaun village respectively. The contribution of forest and van panchayat for fuel-wood were 13.5 and 5 kg, 11.5 and 6.5 and 2.6 and 6.2 kg/day for group of farmers during rainy, winter and summer seasons, respectively. We observed that 35 species of trees (forest trees+ fruit trees), 18 species of agriculture crops, 13 species of vegetable crops, 9 species of grasses and 13 species of shrub were identified from the study area.
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Insects and products derived from them have been consistently used as medicinal resources by human civilizations all over the world. The immunological, analgesic, antibacterial, diuretic, anesthetic and anti rheumatic property in the bodies of insects is now well recognized; however the immense scope for its exploration still remains untapped. The chemicals generated by insects for self defense can be used as medicinal drugs of enormous potentiality. Insects have long been utilized as significant dietary factor and remedy for illnesses in folk tradition. Such entomotherapeutic potential of insects can also make important contribution in conserving the biodiversity of insects. At present, insect based medicines are gradually on the rise and gaining popularity and relevance. Products based on insect-derived substances with conventional technologies will help in yielding further benefits. This review collates the most important works conducted on insects used for different medicine and includes a discussion of the potentialities of such medicines.
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Abstract :Contents of December, 2013
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Palmyrah young shoot is rich in starch and fibre, which is helpful in controlling various diseases especially diabetic. Regular consumption of this flour increase the body strength, reduce hunger and incorporation of it in other foods would positively reduce the malnutrition. However, presence of bitter compounds (flabelliferin or steroidal saponin) limited its consumption rate. Very few studies are carried out in this area and hence the present study was aimed to remove the bitter compounds by aqueous extraction and to evaluate the effect of debittering on changes of palmyrah young shoot flour. The starch and fiber content were dramatically increased and phenolic and saponin contents significantly decreased in debittered flour (DBF) than raw flour (RF). In addition, the color value ‘L’ value increased whereas ‘a’ and ‘b’ value decreased in DBF. The debittered flour had good thickening and gelling properties, which can sustain the use of debittered palmyarh flour in food industries.
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In comparison with tractor drawn implements, rotary tillers are of particular interest in final seedbed preparation. In India vertical axis rotary tiller has been introduced in recent years by some farm equipment manufacturers. Farmers claim difference between horizontal and vertical axis rotary action but there are no scientific work compare them. Some research has been done on comparison between rotavator and conventional tillage implements. In this research, a quantitative basis for the description of torque created by different rake angle is given. The design optimization in terms of torque requirement has been carried out for the different rake angle viz., 5, 10 and 15 degree; forward speed viz., 2.0, 2.5, 3.0 and 3.5; rotor rpm viz., 220, 270 and 310. At all groups the investigations indicated that the optimum torque was produced at 2.5 kmph with 270 rpm when the rake angle is 100.
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The present study was carried out to evaluate the genetic variations for fertility restorer gene among various sorghum (Sorghum bicolour (L.) Moench) genotypes by SSR analysis. The experiment was conducted in UG Plant Biotechnology Lab of the Deptt. of Genetics and Plant Breeding, G.B. Pant University of Agriculture and Technology, Pantnagar (U.S. Nagar). A total of five SSR primers were used for the estimation of allelic diversity in thirty sorghum genotypes consisting, ten male sterile lines (female), ten maintainer lines and ten pollinator (male) lines. All primers were found to be polymorphic for all sorghum genotypes with polymorphism ranged from 80% (Xtxp250 and TS304T) to 100% (Drenshsbm 95 and TS050). Among all 34 alleles, the number of alleles per locus varied from 5 (Xtxp250 and TS050) to 10 (TS304T), with average of 6.8 alleles per locus. The PIC for all 5 primers varied from 0.45 (Drenshsbm 95) to 0.88 (TS304T), with a mean of 0.70. The genetic similarity (GS) was varied from 0.70 to 1.0 for all genotypes. Dendrogram revealed that male sterile lines ICSA264, SP55609A, ICSA702, 32A2 and ICSA293 showed more genetic diversity (30%) with restorers UPC2, HC260 and M35-1 and these combinations can be used as heterotic parents in improvement breeding program of sorghum.
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Production of chemical fertilizers is associated with consumption of huge energy. In the present study, an attempt was made to assess the energy consumption in bio-priming mediated okra production under greenhouse conditions. Results showed that among all the treatments, seed priming with Trichoderma harzianum (NBRI 1055) along with 90% RDF was not only helpful in reducing fertilizer dose by 10%, but at the same time produced almost similar yield as compared to with 100% RDF. Bio-priming in different combination with chemical fertilizers had a positive impact on the chemical composition of okra. Bio-primed treatments saved 970 to 1670 KJ energy in producing unit produce as compared with 100% RDF. This proved that bio-priming is cost-effective, user, and eco-friendly technique solving numerous problems in agriculture. This technique requires the prerequisite of incorporating organic matter in soil and seen as complementary to inorganic fertilizer source, not as their replacement.
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Irrigating crops based on evapotranspiration deficit and irrigating after a particular time interval provide scope for optimizing irrigation. Studying the effect of different irrigation frequency on water productivity, is important to develop irrigation schedules under micro irrigation. In this study, effect of different spacing between drip lateral (45 cm and 60 cm) and irrigation frequency (One, Two, Three and Four days) on onion crop (Allium cepa L.) under drip irrigation system during kharif season 2018 in micro plots (2 m × 2 m) filled with sandy loam soil was evaluated. Irrigation was applied using drip irrigation for different irrigation frequency using same volume. During the experiment different observations like soil physical and chemical properties, different growth and yield parameter were recorded. Highest water productivity (10.1 kg/m3) and total bulb yield (169.4 q/ha) was observed in two days irrigation frequency with 45 cm lateral spacing. Available moisture depth (cm) in the root zone (0-60 cm) at 90 DAT, for one day irrigation interval with 45 cm lateral spacing was 11.6 cm at the middle of two laterals which was 9.4 % higher than with 60 cm lateral spacing where available moisture was 10.6 cm. More distantly placed laterals may show poor water distribution and with a few of plants at the midpoint between the rows being water stressed. Studying the effect of different irrigation frequency and design parameter like lateral spacing hence becomes important to develop irrigation schedules and practices that can be used for better irrigation water management.
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With the inception of climate change phenomenon occurrence of drought in a region has impacted the agricultural production. Occurrence of rainfall, its frequency and intensity are important characteristics which are being studied to trace the climate variability of any region. Standardized precipitation index was used to assess the drought for Solapur region of Maharashtra. Monthly rainfall data of 42 years of four monsoon months i.e. June, July, August and September was used to generate SPI values, based on these values drought was categorized into mild, moderate, severe and extreme drought. This study showed that there was deviation in rainfall received than the normal rainfall, also drought categories indicated that rainfall and its variation are critical and important for dry climatic conditions for crop planning .Based on drought assessment one can adopted drought mitigation strategies for drought proof agriculture in such rainfall deficit zone.
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Soil erosion is a crucial problem and a critical environmental hazard in agricultural land, river catchments and reservoirs. Its assessment by various methods such as universal soil loss equation (USLE) is widely carried out by estimating the factors of the equation in a GIS environment. The Non-River catchment in Madhya Pradesh, India comprising of 836 sq. km area was studied for soil erosion and sediment losses in entirety as well as for its 33 sub catchments. The study revealed that a vertical fall of 230 meter with a sudden drop within 10 km generates a high erosion potential by runoff water in micro catchments numbered 1,2, 3, 7, 21 and 29. The erosivity (R) parameter of catchment suggested of medium precipitation but high kinetic energy in western and southern part of the catchment. The topographic factor (LS) in western part of the catchments is higher which covers the sub catchments referred above. The forest land, fallow land and ravine lands comprising of 43.79% of the total catchment area are having sparse-vegetation and steep slopes, and are more prone to the soil erosion. In the Non River catchment no conservation practices are followed. The total annual rate of soil erosion in the catchment, as obtained by multiplying USLE factors, ranged variably under different land uses. The erosion from the steep and sparsely vegetated sub catchments under forest and fallows is highest in the range of 5.90-10.25 t/ha/yr. However, the agricultural land comprising of 50% of the catchment area is under the ‘slight’ class of the erosion ranging from 0.05 to 2.57t/ha/yr.
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The experiment was laid out in split plot design with three farming practices as main plots and four cropping systems as subplots with three replications. Among the farming practices organic farming practice (7571.40 kg ha-1) resulted in significantly highest MGEY where as production efficiency was found to be significantly higher under organic farming practice (20.74 kg ha-1 day-1) which remained at par with integrated farming practice (19.97 kg ha-1 day-1) and were found superior over inorganic farming practice. With non premium pricing inorganic farming practice resulted in lowest cost of cultivation and higher B:C ratio and Integrated farming practice resulted in higher net returns over organic farming practice. While, with the premium pricing of organic produce organic farming practice resulted in higher gross and net returns over inorganic farming practices. It is the premium price that makes organic systems more profitable. However, even without premiums, organic systems may be more profitable than conventional systems in the long run as organic management will enhance overall farm value.
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The experiment was conducted at Research Farm of Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh, India to study the “Bio-efficacy of Bentazon against Weeds in Direct Seeded Rice under Kymore Plateau and Satpura Hill zone” during kharif season of 2016 under edaphic and climatic conditions of Jabalpur (M.P.). The dominant weeds associated with direct seeded rice in the experimental field comprised of monocot like Echinochloa colona and Dinebra retroflexa, sedges like Cyperus iria and dicot weeds including Mullogo pentaphylla and Alternanthera philoxeroides. Experiment consisted of total ten treatments comprising of seven doses of Bentazon 600, 800, 1000, 1200, 1600, 1800 and 2000 g/ha, 2,4-D 380 g/ha as post-emergence, hand weeding twice at 20 and 40 DAS including weedy check, the experiment was laid out in randomized block design (RBD) with 03 replications. The post-emergence application of Bentazon at 1600 g/ha was found economically best suitable for effective control of dicot weeds in direct seeded rice. This treatment also enhanced the growth parameters (viz. plant height, number of tillers/m²), yield attributes (viz. effective tillers/m², total and sound grains/panicle) and yield (grain and straw) as compared to rest of the treatments. It also produced higher benefit cost (B:C) ratio (2.2) therefore application of Bentazon 1600 g/ha was found more remunerative and productive.
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Nannochloropsis salina is a free living unicellular marine microalga. The present study analyse the influence of salinity and pH on the growth and biochemical composition of this microalga. The alga could tolerate a wide range of salinities. Maximum growth rate and production of chlorophyll, carotenoids and protein was noted in cultures with 40ppt salinity. Cultures with a salinity of 50ppt recorded maximum carbohydrate and lipid production. However, the organism could not tolerate low salinity levels as no growth was observed at zero and 10ppt salinity. The optimum pH required for the maximum production of biochemicals varied considerably. While maximum growth rate and Chl a production were noted at pH 9, carotenoid production was more in cultures with pH 6. Production of protein and carbohydrate was high at pH 10, and lipid at pH 7.
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Results of the field experiment entitled “Studies on zinc and iron enrichment through ferti-fortification in groundnut (Arachis hypogaea L.) genotypes” was conducted during rabi season of 2014-15 at Agronomy field unit, College of Agriculture, UAS, Raichur are discussed in this paper. The soil of the experimental site was deep black, clay in texture with pH 8.4, deficient in DTPA extractable zinc and iron. Three groundnut genotypes in main plots and seven micronutrient treatments comprising of one control and three each of zinc and iron as soil, foliar and both were assigned in the sub-plot in a split-plot design replicated thrice. Results revealed that the groundnut genotype ICGV-00351 recorded significantly higher leaf area index (1.79 at harvest), kernel yield and shelling percentage (1934 kg ha-1 and 72.77%) and Fe uptake by kernels, haulm and their total uptake (357.12, 517.71 and 874.83 g ha-1, respectively) as compared to other genotypes. Among the micronutrients, soil (25 kg ha-1) and foliar (0.5%) application of ZnSO4 recorded significantly higher leaf area index (2.10 at harvest), kernel yield (2051 kg ha-1) and shelling percentage (73.21 %) as compared to the other treatments. Whereas, uptake of Fe in kernels, haulm and their total uptake. Significantly higher uptake of Fe in kernels, haulm and total uptake of Fe in groundnut was recorded with soil (25 kg ha-1) and foliar (0.5 %) application of FeSO4 (427.56, 701.62 and 1129.18 g ha-1, respectively) over other treatments.
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Plants are exposed to various abiotic stress conditions during their lifespan. Abiotic stresses such as drought, salinity, extreme temperature, ROS etc. affect crop yield to great extent. Global warming may worsen the situation in the years to come in most agricultural regions. Therefore, it is critical to understand the mechanisms that enable plants to cope with water deficit. Strategies involving genetic engineering show great promise. Coordinated expression of stress responsive genes is very important for the survival of plant under stress conditions and the regulation is brought about by transcription factors (TF). Myb is a family of transcription factor comprising of a few drought responsive TF. The expression of the TF may be regulated with the onset of drought or other abiotic stress conditions. Eleusine coracana being a rainfed crop could be a good source to fish out drought responsive myb gene. The study was carried out to demonstrate the expression of Ecmyb gene in sensitive (PES-400) and tolerant (PRM6107) genotype of E. coracana under drought, cold, ROS and salt stress. Drought stress was provided by withholding water for 11 days whereas cold stress was provided by incubating the plants in BOD incubator at 40C for different time periods. Similarly salt stress was given by watering the plants with sodium chloride and ROS was created by spraying paraquat on the plants. RT-PCR was carried out to study the expression of Ecmyb gene in different stress conditions. The gene was expressed in the tolerant genotype in all the stress conditions except cold. However, no expression was observed in sensitive genotype under stress condition. Both the sensitive as well as tolerant genotypes did not show Ecmyb gene expression under unstressed condition. The study concludes that the expression of Ecmyb gene was induced with the onset of drought, ROS and salt stress. Cold stress had no effect on the expression of the gene. The transcript was sequenced and submitted to NCBI database (Accession No. JN107890). In-silico analysis showed maximum similarity with drought responsive genes of rice and maize. Future prospects include full length cloning and functional validation of the gene.
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A field experiment was conducted during rabi season of 2014-15 at Agronomy field unit, College of Agriculture, University of Agricultural Sciences (UAS), Raichur to study the effect of zinc and iron ferti-fortification on growth, pod yield and zinc uptake of groundnut genotypes. The soil of the experimental site was deep black, clay in texture with pH 8.4, deficient in DTPA extractable zinc and iron. Three groundnut genotypes in main plots and seven micronutrient treatments comprising of one control and three each of zinc and iron as soil, foliar and both were assigned in the sub-plot in a split-plot design replicated thrice. Results revealed that the groundnut genotype ICGV-00351 recorded significantly higher plant height and leaf area at harvest (40.05 cm and 5.40 dm2 plant-1, respectively), pod yield (2656 kg ha-1) and Zn uptake by kernels, haulm and total (59.29, 130.46 and 189.75 g ha-1, respectively) when compared to other genotypes. Among the micronutrients soil (25 kg ha-1) and foliar (0.5 %) application of ZnSO4 recorded significantly higher plant height and leaf area at harvest (42.09 cm and 6.30 dm2 plant-1, respectively), pod yield (2656 kg ha-1) and Zn uptake by kernels, haulm and total (67.42, 153.61 and 221.03 g ha-1, respectively) when compared to other treatments.
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The present study was undertaken to analyze the information management behaviour of fish farmers in West Tripura, Tripura. An ex-post-facto research design was followed for the study and West Tripura district was purposively selected based on the prevalence of fish farmers in the district. A sample of 80 fish farmers were selected randomly from the eight selected villages from four blocks of the district. A structured interview schedule was used to collect the information through personal interview. The results showed that majority of the respondents belonged to medium category (62.50%) of information management behaviour, followed by low (21.25%) and high (16.25%) categories. A positive and significant relationship was observed between information management behaviour of fish farmers with independent variables i.e., education, annual income, experience in fisheries, extension contact, achievement motivation, economic motivation, information source exposure, credibility of information source and training exposure.
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Transfected cell lines are widely used in biological research. Cell heterogeneity within a population can be vital to its unusual function and fate. Mixed mutants may not be as informative regarding which cell responds to our treatment. Cell to cell differences in RNA transcripts and protein expression further complicate the condition. To understand the real affect on the treated cells, researchers want to have single cell monoclonal population to provide correct information for getting truly transfected cell population. With this fact, we focus on the single cell isolation from transfected cells and its proliferation, which include methods of single cell pickup, analysis of media supplements on growth parameters and optimizing the best condition for single cell proliferation. Dilution method and Single cell pickup with mouth pipette method were compared for their efficacy. Rotational media supplement was found better than the regular medium used for cell growth. To explore the best suitable conditions for cell proliferation and survival, the cell viability percentage, total cell count, cell proliferation rate and population doubling time were calculated at different time interval in different media supplement groups.
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Highly significant variations due to G×E interactions, environments and genotypes had been observed AMMI analysis. Values of IPCA’s in the AMMI analysis indicate stability or adaptability of genotypes. G11, G1 selected by IPCA-1 and G1, G2 as per IPCA-2. Utilizing 60.6% of G×E interactions ASV identified G1, G7 and ASV1 settled for (G1, G7) genotypes. Nearly 97.8% of variations exploited by MASV1 pointed for G9, G2 whereas MASV judged G9, G8 genotypes. BLUP based HMGV RPGV HMRPGV measures identified G11 & G3. Consistent yield of G2, G3 wheat genotypes supported by the least values of standard deviation and CV measures. Biplot analysis of studied measures observed that two significant PC’s has accounted for 65.8% of the total variation with respective percent share of 40.4% & 25.5% respectively. Si2 , Si4 , Si1 , Si3 , NPi(3) , IPC5 contributed more in PC1 whereas for PC2 contributors were BLGM, RPGV, HMGV, HMRPGV NPi(2), NPi(3), NPi(4) . High degree of positive relationship expressed by NPi(2) NPi(3), NPi(4) with MASV, MASV1. Measures Si1 to Si7 clubbed with standard deviation, CV along with NPi(1). No association of ASV & ASV1 observed with NPi(2) NPi(3) , NPi(4). Clustering pattern seen BLUP based measures in separate cluster while NPi(2) seen with Si1 to Si7 along with standard deviation and CV measures.
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The sensitivity level of plants to air pollutants is evaluated by air pollution tolerance index (APTI). Parameters of leaf like pH, relative water content, chlorophyll, ascorbic acid were analyzed for the computation of air pollution tolerance index (APTI). In the present research, leaf sample of different plant species like Ficus religiosa (Peepal), Nerium indicum (Kaner), Azadirachta indica (Neem), Mangifera indica (Aam), Cassia fistula (Amal tas), Eucalyptus (Nilgiri), Ficus religiosa (Peepal) and Calotropis procera (Aak) were taken from Pratapnagar Circle of Udaipur city, which is connected from national highways and has a heavy load of vehicles. The results obtained showed highest APTI values of Eucalyptus (Nilgiri), followed by Mangifera indica (Aam), Azadirachta indica (Neem), Ficus religiosa (Peepal) and Nerium indicum (Kaner).
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Endometrial cytology is a method commonly used in gynaecological practice for the diagnosis of reproductive disorders in cattle. This is due to the unusual structure of the cervix, which make reaching the uterus difficult. Proper preparation and evaluation of cytological smears depend not only on the experience of the personal performing the examination but also on the selection of an appropriate method for obtaining material from the uterus. Cytological examination is performed in cows mainly in order to exclude or confirm subclinical endometritis when ultrasonography reveals only slight changes or no irregularities. Subclinical endometritis (SE) is defi ned as inflammation of the endometrium in the absence of any signs of clinical endometritis such as purulent vaginal discharge and is associated with delayed uterine involution. SCE is also known as cytological endometritis on the basis of “an elevated ratio of polymorphonuclear cells (PMN) in endometrial cytology samples. Endometritis is indicated 21-33 d after parturition if leukocytes exceed 18% and 34-47 d after parturition if the percentage exceeds 10%.
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The tea mosquito bug is one of a major pest in tea. The promising and effective insecticides are limited for the control of TMB and repeated use of similar pesticides for a prolonged period leads to the development of resistance in TMB. In this view, a study was done on finding new and effective pesticides for the control of TMB. Overall fifteen synthetic insecticides were evaluated with 50 treatments against TMB under laboratory conditions. Based on the laboratory evaluation, the effective insecticides were selected for further field evaluation from 2020 to 2021 in Valparai, Coimbatore. TMB reduction percentage, yield analysis and phytotoxicity studies were undertaken during the study period. In the laboratory, seven treatments achieved 100% adult mortality on TMB after 24 hours of application. From the field evaluations, four treatments Viz., Beta-cyfluthrin + Imidacloprid @ 625 mL/ha, Sulfoxaflor @ 250 g/ha, Tolfenpyrad @ 1000 ml/ha and Flupyradifurone 1000 ml/ha were showed 87, 84, 83 and 83% of TMB reduction respectively over the control. Similarly, the above-mentioned treatments also achieved 140, 201, 220 and 208% of increased yield, respectively over the control. From the study, new pesticides produced superior results in the reduction of TMB percentage as well as increase the crop yield.
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Vegetable farming has paved new path of economic development in hilly states like Himachal Pradesh. Now farmers are capable of harvesting more monetary value per unit of land. Most of the farmers in the state have marginal land holding and traditional agriculture could not sustain farming community in geographically isolated hills. New dimensions added to hill agriculture has also brought new challenges and now it become concern whether these changes are ecologically viable? what is the level of environmental sustainability, and how it can be improved? To answer all these questions present study was conducted in Himachal Pradesh with the objectives of; developing sustainability index for vegetable farming; to establish relationship between various socio-economic variables with environmental sustainability of vegetable farms and to find effect of group action on environmental sustainability. Study reveal that majority of farms of SHG members were moderately sustainable to sustainable and of non-member majority of vegetable farms found in least sustainable to moderately sustainable. Thus, group action in the form of SHGs can be considered as a holistic approach to increase environmental sustainability of vegetable farming in the state. Education status and extension contacts of the farmers found to have positive impact on environmental sustainability of vegetable farming in the state.
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Fly ash is considered as a good soil & source of secondary plant nutrients as well as micronutrients and can significantly improve the physio-chemical properties of the soil due to increase in porosity and water holding capacity. It can efficiently be used as a source of pesticide carrier, plant growth promoter etc. It has also been reported to be safe for agricultural application in context of toxicology & radioactivity. The poor infiltration and fine texture of clay soil causes water logging problem and reduces biological activities in soil. In contrast to this, loose particle and higher in filterability in sandy soil results in low water holding capacity and poor nutrient retention. Fly ash, a waste product of thermal power plants, causes environmental pollution and is hazardous to human health. Fly ash may be used as amendment to improve soil properties and plant growth in soils. The addition of 20% fly ash in decade soil and up to 30% in sandy soils improved the germination, plant height, biological and grain yield of wheat. The addition of fly-ash has also shown improvement in the soil properties viz. texture, structure and bulk density. Permeability of clay loam soil increased from 0.54cm/hr to 2.14cm/hr by the addition of 50% fly ash whereas it decreased from 23.80 cm/hr to 9.67 cm/hr in sandy soil by addition of 50% fly-ash. Water holding capacity of sandy soil also increased from 0.38 cm/cm to 0.53 cm/cm at 50% level. The agricultural productivity increased by addition up to 30% fly ash and 10% compost in different type of soil as experimented in the present study.
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In India, a huge quantity of jute (Corchorus spp.) stick is being produced as a primary by-product of jute fibre (economic part) cultivation every year, and the common practice in vogue is to burn such resides as firewood for domestic energy purposes. Present study aimed to utilize this jute stick alpha cellulose as raw material for synthesis of microcrystalline cellulose (MCC) under microwave radiation. The samples were characterized by FTIR and degree of polymerization. Effect of various mineral acids under microwave radiation were also tested. This study reported a new method for preparing MCC from jute stick alpha cellulose by microwave radiation (650W for 45 min at 80 oC). The order of finer MCC was HCl>HNO3> H2SO4 whereas, the yield order was HCl>H2SO4> HNO3. The developed MCC could be explored for pharmaceutical and other applications.
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De novo primer development is cost intensive and time-consuming, therefore using primers developed for other species on the target species is a more preferred alternative. In the present study, a total of 47 primer pairs from P. taeda, P. merkusii, P. resinosa and P. densiflora were used for trans-specific amplification of P. kesiya. It was observed that only 5 (10.6%) primer pairs out of 47 transferred in P. kesiya which may be due to the phylogenetic distance of the target species from the source species. The expected heterozygosity (HE) ranged from 0.490 to 0.603 with a mean of 0.540 and the observed heterozygosity (HO) ranged from 0.044 to 0.819 with a mean of 0.342. The study has shown that the nuclear SSR markers can be utilized for estimating the genetic structure of P. kesiya populations. Results of the present work will go a long way in implementing proper strategies for the better management and conservation of P. kesiya forests and initiating tree improvement programmes in this species.
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Protoplast technology endeavors a unique single cell system that promotes several aspects of modern biotechnology. In the present study, an efficient protocol to isolate the protoplast from callus culture of a valuable plantation crop, Anacardium occidentale was developed. The phenolic compound released during digestion process caused protoplast injury resulted in low yielding. Further investigations revealed that pH 5.0 and osmotic concentration 0.5M mannitol were found suitable for maximum protoplasts yield. The results also indicated that the age of the callus tissues plays a key role in the yield of protoplasts in A.occidentale. During the study, youngcalli showed maximum protoplast yield when treated with cellulase (2.5 %), pectinase (2.5 %), hemicellulase (1.5%) and 20mM CaCl2 in 0.5M mannitol. Meanwhile, an incubationperiod of 4hours with enzyme solution resulted in the maximum yield of protoplasts (4.71 ± 0.15)×103 protoplasts/g FW. In short, the results generated in the study can be used as a platform to work out the protoplast technology in A.occidentale.
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Now-a-day’s biodegradable organic sources are gaining global importance for the cultivation of crops specially in the rice culture. The organic wastes like digested sludge, wooden carpet waste and press mud proved equally effective in rice crop compared to other organic sources with respect to milling and cooking qualities and volume expansion ratio. The building up the total amylase and protein content in rice grain was more effective when organic sources were used in comparison to inorganic or other sources of N. The soil bulk density and electrical conductivity was reduced by the application of organic sources thereby increasing the water holding capacity and the availability of organic carbon or P, K, S and micronutrients such as Fe, Zn, Cu content of the soil.
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Plastid genome engineering is a credible tool for the basic biotechnological research and various innovative techniques have led to the better understanding of the complex processes involved in the plastid transformation. Plastids in higher plants are the major biosynthetic centers for photosynthesis which is the main source of energy requirement. Plastids have their own genome i.e. plastome which is maternally inherited in most angiospermic plant species. Although production of transgenic plants has traditionally been through expression of transgene in the nucleus, but plastid transformation is considered more attractive and efficient target for genetic engineering due to several advantages over nuclear transformation including high level of foreign protein, eliminating the risk of cross pollination with weeds, absence of silencing mechanism and ability to engineer multiple genes rather than a single gene. The potential utility of plastid genome engineering has been explored in development of crops with various agronomic traits, development of vaccine, biopharmaceuticals, therapeutic proteins, biomaterials and industrial enzymes, which will definitely prove beneficial in near future. Plastid transformation is still to be fully utilized for product commercialization, because of the problems associated with protein purification and expression level control. This review article highlights the various possibilities and potential applications of plastid genome engineering for generation of marker free transplastomic plants, improvement in agronomic traits and role of plastids in the production of cost effective biopharmaceuticals and biomaterials.
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Sweet potato (Ipomoea batatas (L.) Lam.) is a low-input crop that can produce stable yields under suboptimal conditions. It is a nutritious and ample food source for humans and animals as well as a raw material for manufacturing. The experiment was carried out at the Horticulture Research Stationand AICRP Tuber Crops laboratory of Bidhan Chandra Krishi Viswavidyalaya, West Bengal, India from 2012-2014 to study the variability existing among the tubers after harvest. It has been found that the different cultivars had plant length (79.26-130.36 cm.), number of shoots/plant (7-13.67), number of leaves/plant (56.33-120), and number of tubers/plant (2.67-7), tuber weight (80.23-175.87 gm.), length (17.07-24.05 cm.), girth (3.42-5.28 cm.), yield/plant (2.97-10.78 kg/plant)and these varied significantly among the cultivars. The cultivars were observed to have good biochemical properties with moisture content (74.74-150.74 %), dry matter (18.42-31.62 %), TSS (6.43-11.25 °Brix), ascorbic acid (12.84-25.91 mg/100gm), total sugars (2.17-3.68 %), carbohydrate (15.67-28.42 mg/100g), protein (1.09-3.08 %)and starch (8.23-15.56%).They have also high sensory scores (7.20-8.55) based on the results obtained from overall acceptability. Cultivar IGSP-15, S-61 and ST-14 were identified to be superior considering all qualitative aspects like morphological characteristics, overall acceptability, biochemical compositions like good nutritional value, antioxidant property and suitable for processing purposes which can be selected for further improvement and can be promoted for cultivation. Results show that these sweet potato varieties have potentials of biological properties and could have wide utility in food, alcohol and sugar industries. In addition, it could serve as a promising source of protein and its consumption could be utilized in the management of diseases that implicate free radicals.
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Sesame known to be the most ancient oilseed crop in the world and well recognized for good quality edible oil due its high PUFA content, antioxidant properties, excellent nutritional and medicinal properties. The present investigation aims at analyzing the genetic diversity of 205 genotypes for 8 morphological characters. Phenotypic coefficients of variation exhibited a bit higher values but maintained a close relation with genotypic variation and genotypic co-efficient of variation for all the traits, indicating low G×E interaction. A combination of high heritability (broad sense) and high genetic advance indicate preponderance of additive gene action which is fixable. Additive gene action was prominent for the traits like no of capsules/plant, seed yield/plant, and primary branches/plant. Hierarchical cluster analysis based on agro-morphological traits results revealed that the inter cluster distance in most cases was larger indicating wider diversity among the germplasm of different groups. The maximum inter cluster distance was found between clusters V and III, followed by clusters V and II, clusters VI and II. The principal component analysis revealed that capsule number and 1000-seed weight had a strong relation with seed yield, suggesting the need for more emphasis on these components for increasing the seed yield in sesame.
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In the study, CMS based hybrid combination involving two male sterile lines (Cajanus cajanifolius) and four restorer lines in pigeonpea (Cajanus cajan) were studied to determine the genetics of fertility restoration in pigeonpea (Cajanus cajan L. Millsp.). Based on the pollen fertility and pod setting, F2 segregating populations were categorised. Out of two major genes governing the fertility restoration, one gene segregated in the ratio of 9:3:4 whereas the second gene in 12:3:1 due to the allelic differences. The ICPA 2043/ LRG 41 and ICPA 2043/NDA 1 hybrids fits best for agronomical aspects as they showed earliness with respect to flowering and maturity having more number of pods plant-1, increase in pod length along with more seed yield plant-1. CMS system is a useful tool serving to increase seed yield production of various crops and consummate the demands of increasing populations.
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Present investigation was carried out for 3 years (2011-12, 2012-13 and 2013-14) at Varanasi, India to find out influence of various gamma doses i.e. 1.5, 2.5, 3.5, 4.5 and 5.5 kR along with untreated (control) in different varieties of gladiolus viz., Aldebaran, Jyotsana, Legend, Praha, Punjab Dawn, Pusa Kiran and Tiger Flame. Maximum number of opened florets in vase was recorded with control during 1st year, whereas during 2nd year it was higher with 2.5 kR. Among varieties maximum opened florets were exhibited with cvs. Jyotsana and Tiger Flame during 1st and 2nd, respectively. Gamma dose at 1.5 kR registered maximum number of opened florets at a time during both years. Longevity of first floret was more with 2.5 kR treatment. Maximum vase life was recorded with 5.5 and 2.5 kR during 1st and 2nd year respectively. Among the varieties, maximum vase life was recorded with cv. Punjab Dawn followed by cvs. Tiger Flame during 1st and 2nd years. Various morphological changes were observed with different doses (3.5, 4.5 and 5.5 kR) and an unstable mutant in variety Pusa Kiran was observed at 2.5 kR. However, a stable mutant during 3rd year of investigation was recorded in cv. Tiger Flame at 3.5 kR gamma irradiation. This mutant has orange-yellow colour flowers. Variation on flower shape, size and colour was exhibited than parent.
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Bacterial blight of pomegranate caused by Xanthomonas axonopodis pv. punicae is a wide spread disease affecting pomegranate production and quality of fruit in Punjab. In-vitro evaluation of agrochemicals indicated that blitox at 3000 ppm followed by kocide 2500 ppm successfully managed the disease. A field experiment was also conducted for its management at New orchard, Punjab Agricultural University, Ludhiana during, 2013. Three sprays of the agro-chemicals were done at 15 days interval starting from end June to end July on Mridula variety of pomegranate. Among the various treatments, blitox (0.3%) + streptocycline (250 ppm) proved most effective in reducing per cent disease index, per cent fruit cracking and providing maximum disease control. Quality parameters viz., TSS, acidity, weight, pulp colour, juice weight etc. were also studied. Maximum TSS, fruit weight, juice weight, pulp weight, 100 grain weight and total grain weight were observed in blitox (0.3%) + streptocycline (250 ppm) followed by kocide (0.25%) + streptocycline (250 ppm) sprayed fruits.
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This study was conducted to assess artificial insemination service delivery system, and major constraints in urban and peri-urban areas of Adigrat, and comparison of semen quality parameters between Adigrat AI center and Tigray Region main AI center, north Ethiopia. The study involved group discussion, cross sectional survey and laboratory analysis of semen quality parameters. A total of 60 households (30 from urban and 30 from peri-urban) were selected for cross sectional survey. Sperm quality parameters were analyzed on 60 straws of frozen semen taken from Adigrat and the regional artificial insemination centers (AIC). From the survey study, 43.3 and 46.7% of urban and peri-urban AI beneficiaries, respectively, were not satisfied with the overall AIT service delivery system. About 30% of urban and 43.3% of peri-urban households indicated that, they didn’t get AI service on weekend and holidays. About 26.67% and 43.3% of the participants in urban and peri-urban areas, respectively reported that, there was a shortage of AI technicians. Hence, about 63.3% and 66.7% of urban and peri-urban AI service users, respectively, switch to bull service when AI technicians were absent. From the semen quality analysis, the overall mean frozen semen motility and live sperm were 52.0±1.01 and 55.9±0.87, respectively. Semen motility and live sperm were affected (p<0.05) by AI centers (regional/district) but not affected (p>0.05) by batch number and blood level. Therefore, it was concluded that the efficiency of AI service in the study area should be improved through appropriate heat detection, improved capacity of AI technicians, awareness creation, and improved semen management practices.
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The study to estimate genetic parameters and to identify agronomic traits correlated with the grain yield of maize hybrids using an experiment was conducted at the Research Farm, JNKVV Jabalpur (MP) during the year 2012-13 consisting of seven newly developed maize hybrids and one composite variety. The experimental design was a randomized block design with three replications. Analysis of variance revealed high significant difference for all the twelve characters studied. Phenotypic coefficient of variation (PCV) was higher than genotype coefficient of variation (GCV) for all the characters indicating the little influence of environment on the characters. All the qualitative characters illustrated high estimates of heritability, which indicates preponderance of additive gene action in the inheritance of these characters. High to moderate degree of genetic advance was observed for grain yield and stover yield, which was followed by cob weight and grains /cob. The genotypic correlations were higher in magnitude than phenotypic correlation and in the same direction. Grain yield had a significant positive correlation at both genotypic and phenotypic level with stover yield, grains/ cob, grains/ row, shelling percentage, grain rows /cob, cob /plant, harvest index, cob weight, cob girth and seed index. Thus, these characters may serve as effective selection parameters during the breeding programme for crop improvement.
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An investigation was conducted with fifteen pea genotypes and three replications. The maximum number of seeds per pod, maximum pods per hectare and maximum pod yield per plant were observed under the treatment P-89. From the data presented, it may be concluded that the genotype of variety P-89 was found suitable for valley hills on the basis of yield parameters, followed by variety Priya and PB-89. The yield and quality of crop (pea) are very complex characteristics depending on certain biological alignments between environment and heredity. The characteristic of a cultivar as well as combination of trials differ according to climatic conditions of the localities (valley conditions) Statistical analysis for all the characters studied by method Randomized block design (RBD) and for the statistical analysis of data the C.D. (Critical difference) at 5 % level of significance for each character was worked out.
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Entisol soil dominates in Chhattisgarh which do not support any vegetation because of preponderance of granular iron oxides, and nutrients and water deficiencies and poor microbial activities. In the present study secondary and micronutrients contents in entisol soil in 25 year old forest plantations comprising 09 different species have evaluated with its relationship on symbiotic Arbuscular Mycorrhizal Fungi (AMF) in roots for the screening of tree species suitable in entisol. The highest root colonization was 62% exhibited in D. sissoo and in T. arjuna while the lowest in A. indica (30%). Soil moisture ranged 10.03 to 12.3% varied significantly with different tree species at P<0.01. Sulfur and calcium content of soil found high in soil under Eucalyptus globulus plantation. Boron, Cu and Mn content were higher under D. sisoo and T. arjuna compared to other tree species plantations. A positive correlation recorded between AMF root colonization with different soil attributes viz. Mg (r2 0.037), B (r2 0.116), Cu (r2 0.210), Fe (r2 0.114), Mn (r2 0.187) and Zn (r2 0.119) was an indicative of the benefits of AMF to host tree species even in old plantations. Variations on tree species and soil parameters were observed significantly, however it was unpredictable to confirm that the particular tree species have better effects on the parameter of nutrients accumulated in rhizosphere soil and on the basis of AMF colonization in tree species plantations at this age.
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The Naga King Chilli (Capsicum chinense Jacq) is one of the hottest chillies in the world. This chilli is native to the north eastern region of India and subsequently the geographical indication (GI) of goods tag for this chilli has been obtained by the Nagaland State Government. The chilli was recorded to be the hottest chilli in the world in 2006 with a Scoville heat unit (SHU) rating of 1,001,304. Currently it occupies the fifth position among the hottest chillies in the world. Due to its high potential commercial value, many studies has been carried out in this crop including scientific cultivation, in vitro regeneration, diversity and evolution studies and its diseases and their management etc. This review is an attempt to bring into account the various research work carried out so far in the crop including the traditional and ethno-medicinal uses.
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A two year field experiment was conducted during the the kharif season of 2014 and 2015 at Agricultural Farm, Institute of Agriculture, Visva-Bharati, Sriniketan, West Bengal, with blackgram variety ‘WBU-108’ to study the effect of imazethapyr and other herbicides on weed growth, productivity and economics of kharif blackgram. The experiment was laid out in a randomized block design with three replications and eight treatments. From the investigation it revealed that Digitaria sanguinalis among the grasses; Cyperus iria among the sedges and Ludwigia parviflora and Croton bonplandianum among the broadleaved weeds were predominant throughout the cropping period. Higher doses of imazethapyr (75, 100 and 125 g ha-1) applied at 20 DAS effectively controlled the grasses, broadleaved and sedges in blackgram at 45 DAS. Yield reduction due to weed competition was to the extent of 26-29% in kharif blackgram. Lower values of weed density, total weed dry weight, weed index and higher values of weed control efficiency, seed yield, net return and return per rupee invested were registered with application of imazethapyr at 75 g ha-1 at 20 DAS which was at par with by imazethapyr at 100 g ha-1 at 20 DAS. These treatments may be recommended for managing complex weed flora and obtaining higher yield and net return of kharif blackgram in the lateritic belt of West Bengal, India.
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Replant problem is very serious problem which suppresses growth and yield of apple and pear in all major fruit growing areas of the world. Fluorescent Pseudomonas has potential to synthesize different secondary metabolites with diverse PGPR activities which enhance soil fertility and promote plant growth. Under this study, twenty- six Pseudomonas strains were isolated from the rhizosphere of apple and pear plants from their normal and replant sites. All the isolates were positive for catalase, oxidase, denitrification test, lecithinase test and tween 80 hydrolysis. They were further screened for antifungal and siderophore production. Maximum siderophore production was recorded in isolates AN-1-UHF, AN-3-UHF, PN- 7-UHF and PN-13-UHF whereas, maximum antifungal activity against Dematophora sp., Fusarium oxysporum, Alternaria sp. and Pythium sp. was recorded in isolates AN-1-UHF, AN-3-UHF and PN-13-UHF. It was found that Pseudomonas sp. isolated from the replant sites showed comparatively less siderophore and antifungal activities. These potential isolates could be further used as biocontrol agents against various fungal pathogens in apple and pear orchards.
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Leaf area measurement is a key parameter for physiological, agronomical, and ecological studies. India has covered the 38 percent geographical area of the arid and semi-arid region. This region is very rich in plants biodiversity. In this work the medicinal plants of semi-arid region was selected for the linear model development for the leaf area. In the present study different sizes of healthy leaves of Balanites aegyptiaca and Gymnosporia montana were collected and the fresh and dry weights, water content, chlorophyll content, and leaf area were measured. Further, the dry weight and water content were considered for the development of the linear model for these plant species which showed a highly statistically significant relationship with leaf area. It was observed that fresh and dry weights, water content gradually increased with leaf size. The best correlation was represented by regression coefficient R2 and correlation coefficient r. The results concluded that dry and fresh weights and water content either one, can be selected as a parameter for developing the linear model for leaf area in both these plants. The probable role of these parameters with leaf size and their application in the herbal formulation is discussed.
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The aim of the contribution was to determine the Future strategies for sustainable livelihood of small and marginal farmers in Rajouri district of Jammu and Kashmir. There are 160 Gram panchayats, 385 villages and 4 towns viz. Rajouri, Thanamandi, Nowshera and Sunderbani. The district constitutes 8.81 percent of the geographical area of the state. There are 7 revenue tehsils viz; Rajouri, Thanamandi, Nowshera, Sunderbani, Budhal and Darhal with a total of 9 revenue blocks. The study based on the primary data in Rajouri district covering equal samples under major farming systems was elicited through survey method for the period 2014-15. It was observed that there is a need to focus on sustaining the productivity gains in the irrigated agriculture, the major emphasis should, however, be on the development of rainfed agriculture, promotion of integrated farming, high value agriculture, transfer of technology, secondary and specialty agriculture need to be accorded high priority. Since the Rajouri district has focused on the organic production in the proposed plan so the high priority is to be given for the action research and extension relating to the organic cultivation. Organic cost/produce certification and marketing of farmers produce at reasonable prices is another crucial issues affecting farm profitability which need immediate attention
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The unsustainable application of chemical pesticides has resulted in a steady decline in food productivity worldwide. Biopesticides hold the potential to maintain agricultural productivity, while safeguarding agroecosystems and microclimates. There are three broad categories of biopesticides: microbial biopesticides, botanical biopesticides, and semiochemical biopesticides. While the development and consumption of biopesticides is at a record high in a number of places, including Canada, the USA, the EU, Australia, and Brazil, India has shown slow growth, due in part to inadequate legislation, a lack of capacity, and the weak implementation of policies related to biopesticides and biocontrol agents. Biopesticides and biocontrol agents in India are still largely regulated by legal frameworks originally designed for chemical insecticides and pesticides. As a result, manufacturers and importers of biopesticides and biocontrol agents face multiple legal and procedural challenges. This paper provides a critical analysis of Indian legal frameworks regulating biopesticides, concluding that a reform in legal apparatus is necessary to promote the uptake of these substances in the country. A shift in the legal framework from a focus on chemical substances to biological agents would also complement the country’s environmental and sustainability goals.
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Pesticides are a critical input in agriculture and have become a social need since they help to maintain food production and combat vector-borne diseases. In India, pesticide usage is 0.27 kg ha-1, however non-compliance with waiting periods and pre-marketing treatment of food products has resulted in a huge residue problem in food products, which has hampered international trade. MRLs are established based on supervised agronomic field trials and toxicological research with the parent chemical and its primary metabolite. Food commodities are regulated in India by the Prevention of Food Adulteration Act (PFA) of 1954 (now the Food Safety and Standards Act (FSSA) of 2006), the insecticide act of 1968, and the Codex Alimentarius Commission, the Joint FAO/WHO Meeting on Pesticide Residues (JMPR), and the Codex Committee on Pesticide Residues (CCPR), among others. Other countries have their own agencies in charge of pesticide regulation and setting MRLs. MRL values for 213 pesticides have been set in India through 2021. The European Union, the United States, and Japan are India’s main agricultural trading partners. Because developed countries are more concerned about food safety, they implement stringent regulatory measures that can operate as trade barriers. As a result, numerous Indian and other developing-country export shipments have been denied. The issues frequently occur as a result of the large variance in food quality requirements that exporters must achieve in home and international markets. Due to a lack of financial resources and knowledge, developing countries are unable to meet these requirements. To lessen the challenges encountered in international trade, appropriate agricultural practises must be promoted, as well as international collaboration on food safety standards harmonisation.
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A field experiment conducted during five consecutive rabi seasons (2016-17 to 2020-21) at research farm of R.K. (P.G.) College, Shamli (U.P.), with three replications under split-split plot design. FYM levels (0, 5, 10 t FYM/ ha) were taken as main plot, three N levels (40, 80, 120 kg N/ ha) as sub plot and four biofertilizer treatments (Control, Azotobactor, Azospirillum, Azotobactor + Azospirillum) as sub-sub plot. 10 t FYM/ ha resulted decrease in bulk density from 1.23 Mg/M3 to 1.18 Mg/M3. Highest WHC (0.35 Kg/Kg soil), organic carbon (0.91%), CEC {10.59 Cmol (P+)/ Kg soil} and available N (225.3 Kg N/ ha) noticed with 10 t FYM/ ha. The plots receiving 10 t FYM/ ha maintained 24.78, 24.76, 54.61 and 67.56 percent higher effective tillers, grain yield per spike, biological and grain yield/ ha, respectively. The plants with 120 kg N/ ha, produced 31.83 % higher biomass and 31.46 % higher grain yield over 40 kg N/ ha. Highest protein content (13.25%) and protein yield (785.72 kg protein/ ha) was registered with 10 t/ ha FYM. Inoculation with Azotobactor + Azospirillum had 7.06 % higher protein in their grains over uninoculated control. Application of 10 ton FYM/ ha resulted 46.35 and 24.56 % higher net return over 0 ton and 5 ton FYM/ ha, respectively. Highest gross return (` 112091/ ha), net return (` 76343/ ha), output: input (3.14) and benefit: cost ratio (2.14) was analyzed with 120 kg N/ ha. Azotobactor + Azospirillum resulted, 34.85% higher net return over no inoculation.
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Green tea is one of the most popular beverage in the world. Green tea (Camellia sinensis ) is a rich source of bioactive components so it has been used in traditional medicine. In the present study, green tea is extracted with water to obtain maximum nutritional quality and antioxidant activity. The optimal conditions for extraction of green tea was determined by Response Surface Methodology (RSM). Box-Behnken design was applied to evaluate the effects of three independent factors, leaf to water ratio (1:10, 1:30 1:50), temperature (40 to 50°C) and extraction time (15 to 45 min). Optimal conditions were, extraction temperature of 51.44°C, time 29.48 min and water to solid ratio of 1:47.80 with highest total polyphenols, total flavonoid, caffeine, antioxidant activity and lowest tannin.
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In India, cultivation of flowers is practiced from many centuries. In concern of steady increase in demand for flowers, floriculture has become one of the important activities in horticulture. Tuberose occupies a very special position among the ornamental plants for its beauty, elegance and sweet fragrance. Agro-economic data with regard to tuberose cultivation is important for further expansion of cultivation. Hence, the purpose of the present study is to locate the strengths, weaknesses, opportunities and threats (SWOT analysis) in the cultivation and marketing of tuberoses in Madanur village in Prakasam district of Andhra Pradesh. The result shows that cultivation and marketing of tuberoses generates employment and income for the rural poor.
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VOL. 11, NO. 4, AUGUST 2018
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An experiment were conducted in rabi season during 2012-2013 and 2013-2014 to find out the effect of cereal crops (Wheat, Oat, Barley) and cutting schedule on forage and grain yield. The study revealed the maximum chlorophyll accumulation in Barley and wheat during the initial stage at 95 DAS and wheat and barley during the reproductive stage at 30 DAS. Cutting at 50 DAS is proved beneficial on chlorophyll accumulation. Photosynthetic rate was maximum in wheat at 90 DAS. However cutting did not affect photosynthesis rate stomatal conductance and transpiration rate. Barley gave maximum fodder yield (fresh/day). Cutting at 50 DAS was beneficial in producing maximum forage yield without sacrificing grain yield of cereal crops.
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Waste accumulation is a serious problem in recent times as they cause serious effects to the environment. Pineapple waste is one among them and it includes the peel, core, stem and crown, which is obtained after processing and various bioactive compounds such as polyphenols, antioxidants and the protein digesting enzyme bromelain, are also present in pineapple waste. In the present study, the extraction of bioactive compounds from the pineapple peel and core was done using Ultrasound assisted extraction(UAE). The extraction conditions was optimised using the Response surface methodology by using the variables time(min), amplitude (%) and ethanol concentration. Protein samples obtained were purified using acetone precipitation and dialysis to determine the bromelain activity and protein pattern along with activity staining to confirm presence of bromelain enzyme.
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In the field of agriculture in India, an automatic poultry farm is a device that allows efficient use of resources in a poultry farm. In India, a significant portion of the population depends heavily on primary industries for revenue. Either of them, a poultry farm or the poultry industry is a primary source of income for many families. The poultry industry is essential to India’s food supply. The production of automatic poultry farm feeding machines may be needed to expand this industry in India’s rural areas. In today’s system, a poultry farm needs manpower. The chickens are fed manually by manpower. This automated feeding device solves the manpower shortage while also lowering manpower costs. This automated feeding system can be used in both large and small poultry farms, as well as the agricultural sector. Food is fed into a food jar or feeder by this method. This device also uses an automated Fogger system to keep the farm temperature consistent. This automated fogging device can also be used to keep the room at a constant temperature. This automated fogging device can also be used to keep the Livestock Farm’s air at a comfortable temperature. This device is simple to use and affordable. Small poultry farms in India can use it. It can be controlled using an Android phone.
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Northeast India is recognized as an important part of the Indo-Burma biodiversity hotspot. It is one of the 25 global biodiversity hotspots accepted at present. This is also considered as the richest and one of the most endangered places for plant survival in the world. This area is known as one of the centers of origin of various Citrus species. Among the Citrus crops available in northeastern region, Khasi mandarin is the most economically important one and plays a vital role in the socio-economic development of the people in this region. Khasi mandarin is well known for its quality, fruit colour, unique sugar-acid blend and shelf life which make it the most popular citrus cultivar in northeastern region of the country. It covers the largest area in the region due to its commercial value. Assam and Meghalaya have the maximum area and production of Khasi mandarin. The health benefits of oranges have been well known for centuries, but it has therapeutic values that have long been utilized in conventional herbal medicine. Experimental studies shows that its bioactive compounds have tremendous pharmaceutical activity like, antibacterial, antimicrobial, antiviral, antioxidant, cancer preventing etc. which clearly indicate the potential of the crop for the pharmaceutical industry. Although India is fourth largest producer of orange in the world but due to the problem of citrus decline the average yield of orange in India is alarmingly low as compared to other countries. This review thereby summarizes the medicinal and nutritional value of mandarin, their economic importance, problems and prospects of cultivation in northeastern region.
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India has diverse agro-climate and produces a wide range of fruits and vegetables. It is the 2nd largest producer of fruits and vegetables in the world. It produces 74 million tones of fruits and 146 million tonnes of vegetables. Fruits and vegetables not only provide us nutritional and healthy foods, but also generate a considerable cash income for growers. Quality assurance is a prerequisite for high value fresh fruits and vegetables. The quality of fresh fruits and vegetables has a decisive effect on their value. This is a particularly true when consumers have a high income and the market provides a wide choice of produce. Fruit and vegetables are rich sources of vitamins, minerals, and fibers and also have beneficial antioxidative effects. However, the intake of heavy metal-contaminated fruit and vegetables may pose a risk to human health; hence the heavy metal contamination of food is one of the most important aspects of food quality assurance.
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Tomato (Solanum lycopersicum L.) is one of the most popular vegetable crops. It is affected by several diseases among them early blight caused by Alternaria solani is most destructive foliar diseases of tomato, the present study was conducted to evaluate in vitro efficacy of different fungicides with four different concentrations (250, 500, 750 &1000 ppm). Among them highest percent inhibition was found in Propiconazole (90.19%) at 1000 ppm concentration after 120 hrs followed by Tebuconazole ( 86.52%), Mancozeb ( 80.63%) and Captan + Hexaconazole (79.40%) against A. solani. and Moderately growth was found in Hexaconazole (78.17%), Thiram (76.64%) Captan (74.73%) and Carbendazim ( 65.54%). Lowest percent inhibition was observed in Copper oxychloride (42.65%) against control (65.30mm).
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Diamond back moth (DBM), Plutella xylostella (Lin.) has crippled the production of cabbage all over the world having the capacity to dwindle down yield and cause even up to 100% crop loss. Since chemical control has been the most effective means of management over decades, an attempt was made to evaluate diafenthiuron 50% WP on the basis of its bio-effectiveness, non-target toxicity and phytotoxicity in the present experiment. The results exhibited that diafenthiuron 50 % WP at the rate of 600 ml/ha provided most effective reduction of DBM population (88.68%-90.82% reduction of pest over control) with substantial increase in yield (184.75 q/ha) subsequently the highest cost benefit ratio of 1:5.89. All the doses of test molecule were found to be soft against prevailing coccinellids and hymenopteran parasitoids. Further it was observed that the test chemical did not produce any phytotoxic symptoms.
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An ethnobotanical study focused on medicinal value of plants was carried out among the Manipuri community people of Tripura, North Eastern Region of India with aims to document the aromatic wild as well as cultivated spices and traditional knowledge of the medicinal plants used in various ailments. The information was based on normal interview, discussion and conversation with local kavirajs, maibas and elderly people of Manipuri community. In this study, a total of 27 plant species in 20 genera belonging to 14 families were described which have been used in the treatment of around 30 different diseases. Lamiaceae, Amaryllidaceae and Apiaceae are the most frequently used family in context to the number of species used by the Manipuri Community.
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Bacterial blight of pomegranate caused by Xanthomonas axonopodis pv. punicae, have economic importance to reduced crop yield in India. Farm survey was undertaken in the pomegranate research block, Fruit Research Station, Jallowal- Lesriwal Jalandhar during 2015. It was revealed that the maximum disease incidence (91%), severity (14.41%) and fruit cracking (12%) was found in cv. Ganesh. Twenty isolates of Xanthomonas axonopodis pv. punicae showed different virulent reaction with respect to incubation period, fruit cracking and drooping. It was observed that 9 isolates viz. Xap4, Xap5, Xap6, Xap9, Xap12, Xap14, Xap15, Xap16 and Xap17 were highly virulent on Ganesh cultivar. The optimum growth of bacterium was observed at 30 °C while 5 and 50 °C temperatures did not show any growth on Kings B Medium. All the five chemical treatments showed control of bacterium under in vitro conditions. However, the combination of Blitox (2500ppm) and Kocide (2500ppm) with Cristocycline (100ppm) showed maximum inhibition zone of 53 and 52 mm respectively followed by streptomycin (50.12 mm) and Cristocycline (50mm) with 500 ppm concentration. While Bordeaux mixture with concentration (1%) showed 45 mm inhibition.