EVALUATION OF GENETIC DIVERGENCE AND HERITABILITY IN URDBEAN [VIGNA MUNGO (L.) HEPPER]

DOI: 10.5958/0976-0571.2014.00662.6    | Article Id: LR-2971 | Page : 473-478
Citation :- EVALUATION OF GENETIC DIVERGENCE AND HERITABILITY IN URDBEAN [VIGNA MUNGO (L.) HEPPER].Legume Research-An International Journal.2014.(37):473-478
Sanjeev Kumar, Prakash Singh, Rajesh Kumar and Ranjeet Singh*
Address : Department of Genetics and Plant Breeding, N. D. University of Agriculture and Technology, Kumarganj, Faizabad – 224 229 India

Abstract

A field experiment was conducted to examine the genetic divergence and heritability among 109 urdbean genotypes. Significant genotypic differences were observed for all the quantitative traits studied, indicating the considerable amount of variation among the genotypes for twelve characters. High heritability (bs) estimates (> 80%) coupled with high genetic advance (%) of mean were seen for most of the yield contributing traits showing additive gene effect. The genetic diversity analysis was done by employing non-hierarchical Euclidean cluster analysis. It revealed wide range of D2 values (57.57 to 7358.48) suggesting the presence of marked amount of genetic diversity among genotypes; which were grouped into eleven clusters. Cluster IV (18) and XI (18) were having the maximum genotypes followed by cluster I (15) and cluster V (12). The maximum and minimum inter cluster distance were recorded between II and IX (7358.48), and X and XI (170.83), respectively representing wide divergence among these clusters. It is suggested that the crosses should be made between genotype of cluster IV, VIII, IX and XI for enhancing the yield potential of crop as well as improving important economic traits to develop a high yielding variety or cultivar in future breeding programme.

Keywords

Genetic advance Genetic diversity Heritability Vigna mungo (L.) Hepper.

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