Genetic variability for yield and quality traits in local germplasm of rice of Himachal Pradesh

Abstract

In present study estimates of heritability, genetic advance, phenotypic and genotypic coefficient of variation among yield, quality and its component characters for 19 traits in forty five genotypes of rice from different geographical origin were worked out in RBD design at Rice and Wheat Research Station, Malan  during Kharif 2018 Analysis of variation showed significant differences among all the  genotypes  for all the traits suggesting prevalence of wide range of genetic variability and scope of selection for these traits. Estimates of variability revealed that plant height, total tillers/plant, effective tillers/plant, panicle length, grains/panicle, spikelets/panicle, L:B ratio ,GC and GT  exhibited high to moderate heritability coupled with high to moderate genetic advance thus depicting these traits were controlled by additive gene effects thus selection for these traits will be effective Grain yield showed moderate heritability coupled with low PCV, GCV and genetic advance. Moderate PCV and GCV was observed for days to grains/panicle, spikelets/panicle and L:B ratio, which indicated the presence of additive gene action and sufficient variability scope for improvement through selection. Doi.org/10.25174/2582-2675/2020/'103761