Vol. 7, Special Issue 6 (2019)
Genetic diversity and principal component analysis for yield characters of Pigeonpea landraces of Eastern India
Author(s): Bhavana P, Choudhary AK, Santosh K Bishnoi, Maurya S, Choudhary JS, Naik SK, Reshma Shinde and Nawed Anjum
Abstract: Pigeonpea (Cajanus cajan (L). Millsp.) is one of major food legume crops with its centre of origin in eastern India. Assessment of genetic diversity for yield and yield characters and its application for pigeonpea breeding results in enhanced and sustainable nutritional security. Fourteen land races with three checks were characterized for various characters viz., total grain yield, plant height, days to 50% flowering, days to harvest, total biological yield, number of seeds per pod, shelling percentage and 100 seed weight. Cluster analysis indicated significant genetic variability among tested genotypes which provides an opportunity for crop improvement through hybridization of selected genotypes present in distant clusters. The data was further subjected to PCA (principal component analysis) and genotype by trait biplot analysis. The first three principal components accounted for 77% of total variation indicating wide genetic variability among the genotypes. All the genotypes clustered into two major clusters with nine and eight genotypes each. Promising genotypes viz., IC-611232, IC-611230 and IC-611256 can be successfully incorporated in the pigeonpea breeding programme.
Pages: 547-551 | 420 Views 49 Downloads
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How to cite this article:
Bhavana P, Choudhary AK, Santosh K Bishnoi, Maurya S, Choudhary JS, Naik SK, Reshma Shinde and Nawed Anjum. Genetic diversity and principal component analysis for yield characters of Pigeonpea landraces of Eastern India. International Journal of Chemical Studies. 2019; 7(6): 547-551.
