Vol. 12, Issue 12 (2023)

Author(s):
KS Ghule, Dr. SB Sarode, RB Gaikwad and PS Zine

Abstract:
The present study entitled “Assessment of Genetic Divergence of 40 Greengram genotypes (Vigna radiata (L.) Wilczek)” was conducted to investigate the nature and extent of genetic divergence of forty Greengram genotypes using Mahalanobis D2 statistics. Data for eleven key quantitative traits collected from genotypes obtained in a two-replication randomized block design. Seed yield per plant was characterized by maximum phenotypic and genotypic coefficient of variation (PCV and GCV) followed by 100 seed weight. High heritability (broad sense) was found for days when flowering reached 50%.High heritability combined with high genetic advance was observed for plant height and number of pods per plant, suggesting the role of additive genetic advance and the possibility of achieving high genetic advance through selection. Forty Greengram genotypes were divided into eight clusters. Cluster I had the largest number of genotypes (12), then Cluster III and Cluster IV, each with the same number of genotypes (9 genotypes per cluster), Cluster V genotypes (4), and Cluster VI (3) genotypes, suggesting that the genetic composition of the genotypes in one cluster is completely different from that of other clusters. Number of pods per plant contribute most to the expression of genetic divergence.