Pandey and Mall
Cȱandȱmineralsȱwhichȱareȱimportantȱingredientsȱforȱ alongȱ withȱ aȱ checkȱ NDTH-7.ȱAllȱ theȱ 44ȱ genotypesȱ
tableȱpurpose,ȱsambarȱpreparation,ȱchutney,ȱpickles,ȱ includingȱF 1 ȱprogeniesȱwereȱgrownȱinȱtwoȱseparateȱ
ketchup,ȱsoup,ȱjuiceȱpureȱetcȱ(Sekharȱ et al. 2010).
saltȱ affectedȱ plotsȱ asȱ wellȱ asȱ Potȱ culturedȱ atȱ one-
Hybridȱvarietiesȱinȱtomatoȱareȱbeingȱmostȱpopularȱ
monthȱintervalȱduringȱOctoberȱ(E 1 )ȱandȱNovemberȱ
amongȱtheȱfarmersȱasȱwellȱasȱconsumerȱdueȱtoȱitsȱ
(E 2 )ȱinȱRandomizedȱBlockȱDesignȱwithȱ3ȱreplications.ȱ
numberȱ ofȱ advantagesȱ alongȱ withȱ higherȱ yieldȱ
Observationsȱwereȱtakenȱonȱtheȱtwelveȱmorphologicalȱ
potentialȱ evenȱ inȱ stressȱ condition.ȱ Realisingȱ theȱ
asȱ wellȱ asȱ qualitativeȱ charactersȱ byȱ selectingȱ fiveȱ
economicȱpotentialȱthisȱcrop,ȱthereȱisȱurgentȱneedȱtoȱ
competitiveȱ plantsȱ randomlyȱ fromȱ eachȱ genotypeȱ
identifyȱtheȱneedȱbaseȱandȱlocationȱspecificȱpotentialȱ
inȱeachȱreplication.ȱTheȱmeanȱvaluesȱofȱobservationsȱ
linesȱandȱcrossȱcombinationsȱwhichȱhaveȱdesirableȱ
recordedȱonȱtheȱfiveȱplantsȱofȱeachȱgenotypeȱinȱeachȱ
horticulturalȱtraitsȱandȱbetterȱqualityȱinȱcombinationȱ
replicationȱwereȱtakenȱforȱtheȱanalysis.ȱTheȱdataȱwereȱ
withȱhighȱyield.ȱChoudharyȱetȱal . (1965)ȱemphasizedȱ
analyzedȱbyȱappropriateȱstatisticalȱanalysisȱ(Gomezȱ
theȱextensiveȱutilizationȱofȱheterosisȱtoȱstepȱupȱtomatoȱ
andȱ Gomezȱ 1984)ȱ usingȱ CropStatȱ 7.2ȱ (IRRI,ȱ 2009)ȱ
production.ȱTheȱexpressionȱofȱheterosisȱmayȱbeȱdueȱ
programme.ȱHeterosisȱexpressedȱasȱperȱcentȱincreaseȱ
toȱfactorsȱsuchȱasȱheterozygosity,ȱallelicȱinteraction,ȱ
orȱ decreasesȱ ofȱ hybridsȱ (F 1 )ȱ overȱ better-parentȱ
non-allelicȱ interactionȱ orȱ epistasis,ȱ dominanceȱ orȱ
(heterobeltiosis)ȱ andȱ standardȱ varietyȱ (standardȱ
overȱdominanceȱandȱmaternalȱinteraction.ȱHowever,ȱ
heterosis)ȱwereȱcalculatedȱaccordingȱtoȱtheȱmethodȱ
inȱspiteȱofȱintensiveȱresearchȱaȱlittleȱworkȱhasȱbeenȱ
suggestedȱbyȱHayesȱ et al. (1955).
doneȱtoȱdevelopedȱcommercialȱcultivarȱsuitableȱforȱ
Results and Discussion
salineȱecoȱsystemȱ(EpsteinȱandȱRainȱ1987).
Inȱtheȱpresentȱinvestigationȱtheȱrelativeȱmagnitudeȱ
Today,ȱ applicationsȱ andȱ effectsȱ ofȱ heterosisȱ inȱ aȱ
ofȱheterosisȱoverȱbetterȱparentȱandȱstandardȱvarietyȱ
hybridȱ tomatoȱ inȱ termsȱ ofȱ viability,ȱ betterȱ speedȱ
wereȱ studiedȱ forȱ 12ȱ charactersȱ inȱ 30ȱ hybrids.ȱ
developmentȱ ofȱ fruit,ȱ increaseȱ ofȱ yieldȱ hasȱ beenȱ
Natureȱ andȱ magnitudeȱ ofȱ hybridȱ vigourȱ differedȱ
identifiedȱ (Hannanȱ et al. 2007).ȱ Henceȱ theȱ presentȱ
forȱ differentȱ traitȱ inȱ variousȱ hybridȱ combinations.ȱ
investigationȱwasȱundertakenȱtoȱstudyȱandȱgenerateȱ
Theȱpresenceȱofȱhighȱdegreeȱofȱheterobeltiosisȱandȱ
informationȱaboutȱhybridȱvigour,ȱcombiningȱabilityȱ
standardȱheterosisȱinȱeitherȱdirectionȱwereȱobservedȱ
whichȱwouldȱhelpȱtoȱassessȱtheȱprepotencyȱofȱparentsȱ
forȱ allȱ twelveȱ charactersȱ inȱ bothȱ theȱ environmentsȱ
inȱhybridȱcombinationsȱunderȱsalineȱsoilȱcondition.
andȱ providedȱ goodȱ possibilityȱ ofȱ isolatingȱ highȱ
Materials and Methods
heteroticȱ combinationsȱ inȱ desirableȱ directionȱ forȱ
theseȱcharacters.
Theȱ presentȱ studyȱ wasȱ carriedȱ outȱ atȱ “Mainȱ
Experimentȱ Station”ȱ Departmentȱ ofȱ Vegetableȱ
Inȱcaseȱofȱtotalȱyieldȱplant -1 ȱaȱwideȱrangeȱofȱvariationȱ
Science,ȱ Narendraȱ Devaȱ Universityȱ ofȱ Agricultureȱ
wereȱrecordedȱforȱheterobeltiosisȱfromȱ-7.69ȱ(KS-60ȱ
andȱ Technology,ȱ Narendraȱ Nagarȱ (Kumarganj)ȱ
xȱH-88)ȱtoȱ58.56ȱperȱcentȱ(Bilahi-2ȱxȱH-86)ȱinȱE 1 ȱandȱ
Faizabad.ȱ Theȱ experimentalȱ materialsȱ forȱ theȱ
fromȱ-10.86ȱforȱ(MMȱxȱH-86)ȱtoȱ57.98ȱforȱECȱ168282ȱ
presentȱstudyȱwereȱgeneratedȱbyȱinvolvingȱthirteenȱ
xȱH-24.ȱTheȱremainingȱ11ȱcharactersȱalsoȱexhibitedȱaȱ
diverseȱ tomatoȱ varieties/genotypesȱ differingȱ inȱ
wideȱmagnitudeȱofȱvariationȱinȱbothȱtheȱdirectionsȱ
growthȱhabitsȱ(determinateȱandȱindeterminate)ȱandȱ
under,ȱE 1 ȱandȱE 2 .ȱEarlierȱworkersȱhaveȱalsoȱreportedȱ
fruitȱ characters.ȱ Theseȱ genotypesȱ wereȱ selectedȱ asȱ
aȱwideȱrangeȱofȱheterosisȱfromȱ1.46ȱtoȱ185.71ȱperȱcentȱ
parentsȱ fromȱ theȱ geneticȱ stocksȱ maintainedȱ inȱ theȱ
forȱtotalȱyieldȱinȱtomatoȱ(Pandeyȱ1998ȱandȱBhattȱetȱ
departmentȱ ofȱ vegetableȱ scienceȱ ofȱ theȱ university.ȱ
al . 2001).
Theseȱ strainsȱ wereȱ crossedȱ inȱ lineȱ xȱ testerȱ matingȱ Nineȱ hybridsȱ eachȱ in,ȱ E 1 ȱ andȱ E 2 ,ȱ environmentsȱ
fashion.ȱTheȱexperimentalȱmaterialȱisȱcomprisedȱofȱ exhibitedȱ higherȱ magnitudeȱ ofȱ standardȱ heterosisȱ
30ȱF 1 ’sȱwithȱtheirȱparents,ȱtenȱlinesȱandȱthreeȱtestersȱ forȱtotalȱyieldȱplant -1 ȱinȱdesirableȱdirection.ȱAmongȱ
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