Vol. 10, Issue 8 (2021)

Author(s):
Vikky Kumar, Jyoti Thakur, JL Salam, Praveen Pujari and Karishma

Abstract:
The present experiment was conducted at Research cum Instructional Farm of SGCARS Kumhrawand, Jagdalpur, Bastar (C.G.). The experiment was conducted in Randomized Complete Block Design (RCBD) with two replications. Crop was grown proper spacing 30×10cm during Kharif 2019. The study was undertaken on the 82 black gram genotypes along with two checks (Indira Urd Pratham and T.U. 94-2) to study the D² analysis. Eighty two genotypes of black gram were used to study the nature and magnitude of genetic divergence using Mahalanobis’s D² Statistics. The data for thirteen important quantitative traits were recorded. D² analysis grouped genotypes into eight clusters. Among the eight clusters formed, cluster I was found to be largest group consisting of 19 genotypes followed by cluster IV having 18 genotypes, cluster V 11 genotypes, cluster II 9 genotypes, both cluster VII and VIII have 7 genotypes, cluster III 6 genotypes and cluster VI have 5 genotypes respectively. The average intra-cluster distance between the genotypes was maximum for the cluster VII (2.898) and minimum for clusters VIII (2.331), have been recorded. The highest inter-cluster distance was noted between clusters VIII and cluster II (6.706). The genotypes was eight different grouped in these clusters indicate their diverse nature. Number of pods per plant followed by Days to 50 per cent flowering and Pod length maximum per cent contribution towards total divergence among the genotypes. The study provides scope for selection, further subsequent utility of the genotypes in future crop improvement programmes.