National Academy of Agricultural Sciences (NAAS)
|
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field experiment was conducted to examine the genetic divergence among 64 Black gram genotypes at Research and Education Farm, Department of Agriculture Botany, College of Agriculture, Dapoli, Dist. Ratnagiri during rabi2017-18.Sixty four genotypes weregroupedinto9 different clusters on the basis of magnitude of D2 values evaluated by Mahalanobis D2 analysis. Among sixty four genotypes, 16 genotypes were clustered in to fourth and fifth cluster followed by cluster I having 13 genotypes. The cluster II included 10 genotypes, while cluster III had 5 genotypes. Cluster VI, VII, VIII and IX were mono-genotypic. The maximum intra–cluster distance was observed in cluster V (D= 9.108), while the lowest intra–cluster distance found in cluster I (D = 5.865). The inter–cluster distance was high between cluster VI and VIII (D = 46.48) and clusters VI and VII (D=37.06), there by indicated wide range of variation among the clusters formed. In contrast, the lowest inter–cluster distance (Between cluster I and II) suggested that the genetic constitution of the genotypes in both the clusters were in close proximity. Among the thirteen characters studied, 100 seed weight contributed maximum (62.80 %) followed by pod length (18.60%) towards genetic diversity. Hence, these characters may be considered during selection of genotypes for further improvement and hence to increase the productivity.
Citations |
 |
 |
 |
 |
