Correlation and path coefficient analysis were carried out using M2 generation of VBN 4 blackgram. Seed yield had the highest positive and significant correlation with pod length, number of pods per plant and protein content. Other characters viz., plant height, number of branches per plant and number of clusters per plant showed positive correlation with seed yield, while days to 50% flowering, 100 Seed weight and number of seeds per pod showed a negative correlation with seed yield. Path coefficient analysis also revealed positive direct effect of plant height, 100 seed weight, number of clusters per plant, number of pods per plant and pod length on seed yield/plant. Hence, due weightage should be given on these component characters in selection programme for improving seed yield in blackgram.

Keywords: Correlation, path analysis, induced mutation, blackgram