Estimation of genetic variability, heritability and genetic advance for seed yield and its components in Oat (Avena sativa L.) under highly alkaline conditions

Abstract

A trial was conducted at Research Station, Daleep Nagar, Kanpur Dehat (highly alkaline conditions) during rabi season 2021-22 in Uttar Pradesh, India. The experimental material comprised of twenty-four genotypes. The genotypes were tested in Randomized Block Design with three replications in three different environments to study the genetic variability, heritability and genetic advance of different characters amongst various genotypes over different environments. Significant differences for various traits in all the environments indicated that ample variability existed among the genotypes. The estimates of heritability were high for all the characters, whereas moderate to high genetic advance was observed for all the characters. High heritability coupled with high genetic advance was observed for number of reproductive tillers per plant, number of nodes per plant, number of leaves per plant, 1000 seeds weight, L:S ratio, green fodder yield and dry matter yield on pooled basis.