Yield Partitioning in High Yielding Mungbean (Vigna radiata (L.) Wilczek)

Abstract

Correlation and path-coefficient were studied in 10 mungbean (Vigna radiate (L.) Wilczek) genotypes. Positive correlation was observed between grain yield and 1000-seed weight. Branches per plant was negatively correlated with grain yield. Correlation between branches per plant and 1000-seed weight was negligible. The path-coefficient analysis indicated that 1000-seed weight had a high total correlation and a high direct effect on grain yield. Direct contribution of seed size toward grain yield was the highest, but it was appreciably influenced via pods per plant, days to maturity, plant height and clusters per plant. Despite the highest total negative correlation between branches per plant and grain yield per plant, the direct effect was negligible. Clusters per plant had no correlation with plant yield. Ultimately, 1000-seed weight alone qualifies as the best index for selection of genotypes in a mungbean breeding program.