Assessment of genetic variability, heritability, character association and selection indexes in chickpea (Cicer arietinum L.)
Paper Details
Assessment of genetic variability, heritability, character association and selection indexes in chickpea (Cicer arietinum L.)
Abstract
An experiment was carried out to assess the nature and extent of genetic variability, heritability, genetic advance, correlation coefficient, path coefficient and construct the selection index in the material. The experiment was set up during the four consecutive robi seasons of 2009-2010, to 2012-2013 at the Botanical Research Field, University of Rajshahi, Rajshahi-6205, Bangladesh and thirteen yield and yield components of eight genotypes of chickpea have been considered. The analysis of variance showed significant differences among genotypes for all the studied characters. The highest phenotypic variation was observed for NPd/P followed by NS/P and PWH. The highest GCV with high PCV were found for NS/P and NPd/P. The heritability (h2b), genetic advance (GA) and genetic advance as percentage of mean (GA %) were found to be low for most of the characters. Yield per plant exhibited positive association with NPBFF, NPBMF, NPd/P, PdW/P and NS/P both at genotypic and phenotypic levels. In the analysis of descriminant function, NPBFF and NPBMF gave the highest expected genetic gain. Since these two traits exhibited highest genetic gain in the combination of selection index and showed positive correlation with SW/P both at both levels hence considered as primary yield component.
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M. T. Hasan, A.C. Deb (2017), Assessment of genetic variability, heritability, character association and selection indexes in chickpea (Cicer arietinum L.); IJB, V10, N2, February, P111-129
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