Assessing the heat sensitivity of Urdbean (<i>Vigna mungo</i> L. Hepper) genotypes involving physiological, reproductive and yield traits under field and controlled environment.

In urdbean plants grown under growth chamber condition, subjected to heat stress, electrolyte leakage and malondialdehyde (an indicator of oxidative stress) showed highly significant negative correlation with all the physiological traits viz., chlorophyll content, chlorophyll fluorescence, stomatal conductance, relative water content, leaf area, pollen germination % and pollen viability % and yield traits viz. pods plant -1 , seed yield plant -1 ( Table 2 ).

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