Correlation and path analysis studies for green vegetable pod yield and yeild attributes in winged bean [Psophocarpus tetragonolobus (L.) DC]

Correlation and path analysis studies on 20 green pod yield and yield attribute traits in 36 accessions of winged bean revealed that green pod yield per plant had higly significant and positive association with the number of early and late pods per plant, total green pod number per plant, early and late pod yield per plant and total dry weight of plant indicating me possibility of improvement in these traits through simulataneous selection. Path analysis for green pod yield revealed that traits like late pod yield, early pod yield and number of late pods per plant exhibited high positive direct effects on green pod yield. Late pod yield being chief contributing character for green pod yield with indirect effects through early pod yield and number of early pods per plant. Keeping in view the direct and indirect contribution of component traits towards total green pod yield per plant, the indirect selection on late pod yield, early pod yield and number of early pods per plant in winged bean is suggested rewarding.