Abstract

Genetic association and diversity studies among forty five genotypes of diverse origin of greengram were carried out for eight characters. The seed yield, pod number and plant height showed high genotypic coefficient of variation. High heritability estimates were observed for 100 seed weight, days to flowering. plant height and pod length. The seed yield showed highest genetic advance followed by plant height. The correlation study revealed that the seed was positively and significantly correlated with plant height, clusters and pods per plant and seeds per pod. Pods per plant showed a high positive direct effect on seed yield followed by seeds per pod. By application of D analysis, the forty five genotypes were grouped into four clusters. The types chosen from the same eco-geographic region were found scattered in different clusters. The clustering together of types from the same eco-geographic region into one cluster was also observed. Maximum intercluster distance was observed between cluster III and IV indicating that highly divergent types existed in these clusters. In the selected materials, seed weight contributed maximum towards the genetic divergence.

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