Genetic variability, correlation and path coefficient analysis for quantitative traits in mungbean genotypes

In the present investigation, 43 mungbean genotypes were evaluated for different quantitative traits to determine relationships among yield and some yield components using direct (variability, heritability, and genetic advance) and indirect selection parameters (correlation and path coefficient analysis). Significant genetic variations were observed among the genotypes for pods/plant, days to 50% flowering, days to maturity, plant height, 100-seed weight and yield/plant. The magnitude of correlation revealed that seed yield/plant had positive and highly significant correlation with days to flowering, days to maturity, number of effective branches, number of pods/plant, number of seeds/plant, pod length and 100-seed weight. Path coefficient analysis indicated that number of pods/plant followed by 100-seed weight and number of effective branches had the maximum direct positive effect on seed yield/plant. Consequently, based on the genetic parameter correlation and path analysis, number of effective branches, pods/plant and 100-seed weight should be given significant precedence while formulating a selection strategy for effective improvement of mungbean varieties.