Estimation of genetic parameters and character association in barley (Hordeum vulgare L.)

Abstract

Fifteen lines with four testers were crossed in a line x tester (L× T) mating design to estimate the variability,heritability and genetic advance for yield and its component traits in barley (Hordeum vulgare L.). The meansquares due to replications were positive and significant for days to 50 per cent flowering, days to maturity,biological yield plant-1 and amylose content while, mean square due to treatments were positive and highlysignificant for all the characters. High PCV and GCV were recorded for grain main spike-1 and number ofgrains ear-1. High heritability coupled with high genetic advance was noted for biological yield plant-1 amylosecontent and number of tillers plant-1. High heritability along with moderate genetic advance was recorded forplant height, harvest index and 1000 grain weight. These characters were mainly under the influence of additivegene action and thus, there is ample scope for the improvement of traits through simple selection.