Legume Research-An International Journal

Genetic variability, principal component and cluster analyses in black gram under Foot-hills conditions of Manipur

DOI: 10.18805/LR-3875    | Article Id: LR-3875 | Page : 454-460
Citation :- Genetic variability, principal component and cluster analyses in black gram under Foot-hills conditions of Manipur.Legume Research-An International Journal.2019.(42):454-460
M. Samuel Jeberson, K.S. Shashidhar and Amit Kumar Singh samuel8142@gmail.com
Address : Directorate of Research, Central Agricultural University, Imphal-795 004, Manipur, India.
Submitted Date : 1-04-2017
Accepted Date : 3-01-2018
First Online:

Abstract

Analysis of genetic variability, heritability, correlation, path analysis, principal component and cluster analysis was carried for 25 blackgram genotypes grown in the foothills of Manipur. The results showed that phenotypic coefficients of variability recorded were higher than the genotypic coefficients of variability, irrespective of traits, demonstrating the effect of environment thereon. The present study revealed that the heritability (bs) estimates were maximum (>50%) for the traits such as days taken to attain the 50% flowering, number of clusters/plant, number of pods/plant and 100 seed weight. The correlation and path analysis proved the selection of the yield attributes in blackgram based on the characters, viz., number of pods/plant and number of cluster/plants. The first three principal components, having the Eigen values more than 1, contributed 84.52% towards variability among the 25 genotypes screened for quantitative traits. Based on the average linkage, 25 genotypes were grouped into  five (5) clusters.

Keywords

Blackgram Genetic variability Heritability

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