GENETIC VARIABILITY, CORRELATION AND PATH ANALYSIS FOR SEED YIELD AND ITS COMPONENTS IN GREEN GRAM [VIGNA RADIATA (L.) WILCZEK]

Abstract

Forty diverse mungbean (Vigna radiata L. Wilczek) genotypes were evaluated for the estimation of genetic variability parameters, correlation coefficient and path coefficient analysis. The genotypes differed significantly for all characters. Higher GCV and PCV was observed for seed yield per plant (31.76%; 31.45%) followed by number of clusters per plant (21.59%; 21.03%), 100- seed weight (20.75%; 18.68%), number of pods per plant (19.885%; 19.33%), number of primary branches per plant (19.14%; 17.93%) and number of pods per cluster (18.78%; 17.55%). High heritability coupled with high expected genetic advance was observed in seed yield per plant (98.1%; 64.20%) indicating the impact of additive gene expression. The plant height, number of primary branches per plant, number of clusters per plant, number of pods per cluster, number of pods per plant, number of seeds per pod and 100- seed weight and protein content had highly significant and positive correlations with seed yield at both genotypic and phenotypic levels. Maximum direct effect of number of seeds per pod (0.642) and number of pods per cluster (0.432) on seed yield was observed.