Genetic divergence of black gram genotypes (Vigna mungo (L.) Hepper)

N. Manivannan
P. Punithavathy
A. Subramanian
P. Shanthi
V. Babu Rajendra Prasad
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Abstract

Divergence analysis was carried out among hundred black gram genotypes using Mahalanobis D2 analysis.Among ten characters studied, seed yield per plant (g) contributes maximum to the genetic diversity (33.31%).Black gram genotypes were grouped into 14 clusters.  Among this, cluster I had maximum number of genotypes.Maximum intra-cluster distance was found in cluster II and the maximum inter-cluster distance was observedbetween cluster IV and XI.  Cluster XI (VBG 19-002) showed the highest cluster mean for seed yield per plant(g), the number of branches per plant and the total number of pods.  Cluster IV (VBG 18-076) had superior meanfor days to 50% flowering, plant height (cm) and pod length (cm).  Hence, hybridization of genotypes VBG 18076 (Cluster IV) and Mash 114 (Cluster XII) with VBG 19-002 (Cluster XI) could give wide range of variability insegregating population

Keywords Black gram, genetic diversity, intra and inter-cluster distance, cluster mean
Published 09/02/26