Uncategorized

Abstract

The present experiment was conducted to evaluate genetic variability among 12 indica-japonica crosses and their parents during kharif, 2023. Analysis of the variance revealed presence of significant variability among the genotypes for all the characters studied in F2 population. High phenotypic coefficient of variance (PCV) and genotypic coefficient of variance (GCV) were observed for spikelets per panicle (19.75%, 17.76%) and grain yield per plant (18.89%, 16.28%) suggesting presence of high variability among the lines that can be exploited for improvement of these traits through selection in advanced generations. High heritability coupled with high genetic advance were observed for spikelets per panicle (80.93%, 32.93%) and 1000 grain weight (80.34%, 21.10%). Based upon the correlation studies grain yield per plant was positively and significantly correlated with effective tillers per plant, panicle length, spikelets per panicle and 1000 grain weight, both at phenotypic and genotypic level. Path coefficient analysis showed that high positive direct effects were exhibited by effective tillers per plant and spikelets per panicle.