Screening of Weed Competitive Cultivars
Table 3. Per cent reduction of yield attributes under weedy situation over hand weeding in greengram (Pooled data)
Cultivars
Pods/plant
Seeds/pod
Test weight
Seed yield
B 1
17.74
5.75
5.96
24.70
B 105
23.53
6.86
6.16
34.22
PDM 84-139
23.65
13.79
9.10
36.57
WBM 34-1-1
17.65
2.27
5.98
23.34
PDM 54
6.52
1.08
4.09
7.16
WBM 04-5
6.96
1.23
4.10
9.14
1800
1600
1400
1200
1000
800
600
400
200
0
B-1
B- 105
PDM-84-
WBM 34-
PDM - 54
WBM-04-5
139
1-1
Cultivars
Seed yield - weedy
Seed yield - 1 HW
Figure 1. Seed yields of greengram cultivars under weedy and hand weeded plots
situation, whereas it was lower in ‘PDM 54’ (7.16%)
‘PDM 54’ to 36.57% in ‘PDM 84-139’. The cultivars
and ‘WBM 04-5’(9.14%), indicating better weed
‘PDM 54’, ‘WBM 04-5’ and ‘WBM 34-1-1’ kept the
competitive ability of these two cultivars (Table
broadleaved, grasses, sedges as well as total weed
3; Figure 1). The cultivar ‘WBM 34-1-1’recorded
population at lower levels and registered higher seed
significantly the highest seed yield among all the
yields than the others. This clearly showed that these
cultivars tested under both hand weeding and
three cultivars might possess more weed suppressing
weedy situations, followed by ‘WBM 04-5’, ‘B 105’
ability in summer season. Being more competitive
and ‘PDM 54’ (Table 2). The cultivars ‘B 1’ and ‘PDM
with weeds, the cultivars ‘PDM 54’, ‘WBM 04-5’ and
84-139’ under weedy situation registered lower seed
‘WBM 34-1-1’ may be recommended for cultivation
yields. Similar results were also observed in case of
in lateritic belt of West Bengal.
stover yield. The results were in conformity with
the findings of Mishra et al. (2004) and Moorthy and
References
Dubey (2004).
Ali, M., N. Kumar and P. K. Ghosh. 2012. Milestones on
agronomic research in pulses in India. Indian Journal of
Conclusion
Agronomy 57 (3 rd IAC special issue): 52-57.
Ayyappan, S. 2012. Indian Agriculture- the way forward. In:
The study indicated that yield reduction due to weed
Souvenir of Third International Agronomy Congress on
competition in green-gram ranged from 7.16% in
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