Year: 2017 | Month: February | volume 10 | Issue 1
Genetic analysis of yield attributes in ricebean (Vigna Umbellata Thunb.) under hot and humid climatic conditions
Abstract:
Combining ability studies were carried out in ricebean through line x tester analysis involving two lines and six testers for nine quantitative traits. The relative estimates of variance due to specific combining ability (sca) were higher than variance due to general combing ability (gca) for days to 50% flowering, days to maturity, plant height, number of pods per plant, number of seeds per pod, pod length, grain yield per plant and 100-seed weight indicating the pre-dominance of non-additive gene action for these traits. The parents LRB 482 and KBR1 were good general combiners for plant height, number of pods per plant and grain yield per plant. The hybrid combination RBL 35 x KBR 1 recorded highly significant sca effects for days to maturity, number of primary branches per plant, number of pods per plant, number of seeds per pod, pod length and grain yield per plant along with high per se performance.
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