Genetic Variability and Character Association in Advance Inbred Lines of Pearl Millet Under Optimal and Drought Condition

Year 2018, Volume: 4 Issue: 2, 45 - 51, 31.07.2018

Jagdeep Sıngh1 Ashok Kumar Chhabra

Abstract

This study was conducted to investigate genetic variability among 50 advance inbred lines of pearl millet. The genotypes
were evaluated for 15 growth traits, yield components, and grain yield. All the quantitative traits varied significantly
among the tested genotypes. A wide range was observed for all parameters of genetic variability for all the traits. A higher
PCV for various characters than its corresponding GCV suggested the role of considerable component of environment in
the expression of all these characters. High to moderate heritability and genetic advance as per cent of mean for dry fodder
yield per plant, grain yield per plant indicated that selection will be effective for further improvements. Comparative
mean performance for various traits of Bawal location (drought) and Hisar location (normal) revealed that the characters
expression at Bawal was much reduced causing significant reduction in grain yield. The correlation coefficients revealed
that estimated genotypic correlations for most of the characters were greater than their corresponding phenotypic ones.
Results revealed that number of tillers per plant at Hisar location and dry fodder yield at Bawal location can be used as
indirect selection criteria to increase the seed yield. 

Keywords

drought response index, heritability, genetic advance, morpho-physiological traits

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