The present investigation entitled “D2 Statistic Analysis among Green gram [Vigna radiata (L.) Wilczek] Genotypes’’ is carried out with seventy two green gram genotypes including 4 checks viz., IPM 205-07, IPM 02-03, IPM 410-3 and MH 421 in RBD design with three replications during Kharif 2023 to study the nature and extent of diversity present among genotypes. The observations were recorded for twelve characters. Based on their level of divergence, genotypes were classified into eight distinct non-overlapping clusters using Tocher’s method. Maximum intra-cluster distance showed by cluster VII followed by cluster IV and cluster VIII and highest inter-cluster distance was observed between cluster IV and VI and cluster V and VI indicates that there was greater diversity present among these genotypes. Thus, genotypes of these clusters should be used in hybridization programmes to obtain better and desirable recombinants for increasing the grain yield of green gram

D2 statistic analysis, intra-cluster, inter-cluster and genetic diversity

From the current experiment, it can be suggested that genotypes from cluster IV should be selected for developing early maturity varieties of green gram while genotypes from cluster III should be selected for selection as parent in hybridization programmes for improving seed yield in green gram and cluster I should be selected for improving protein content of green gram. Maximum intra-cluster distance showed by cluster VII followed by cluster IV and cluster VIII indicates that there was greater diversity present among genotypes of these clusters. Highest inter-cluster distance was observed between cluster IV and VI and cluster V and VI which indicating wider genetic diversity among genotypes. Thus, these cluster’s genotypes should be used in hybridization programmes to obtain better and desirable recombinants for increasing the seed yield of green gram.

Laxmi Kanwar, Khajan Singh, P.K.P. Meena, C.B. Meena, M.K. Sharma and Prachi Singh (2024). D2 Statistic Analysis among Green gram [Vigna radiata (L.) Wilczek] Genotypes. Biological Forum – An International Journal, 16(6): 72-74.