Analysis of Genetic Variability, Heritability and Genetic Advance for Yield and Yield Associated Traits in Rice (Oryza Sativa L.)

Abstract The present investigation was conducted using 27-rice germplasm for the thirteen traits studied at the agriculture research farm, Department of Genetics and Plant Breeding, School of Agriculture, Lovely Professional University, Punjab during the kharif season 2022. A Randomized Block Design (RBD) with three replications were used to study genotypic and phenotypic variances, heritability, GCV, PCV, genetic advance, and genetic advance as a percentage of the mean (GAM %) for all the yield contributing traits. Harvest index recorded highest GCV (23.56) and PCV (25.06) respectively while Single plant yield had highest heritability h2 (92.11 %). However, Number of spikelets per panicle (45.60), number of filled grains per panicle (32.65), plant height (20.81) had high genetic advance. Moreover, Harvest index (45.64) had highest genetic advance as percent mean (GAM).