Vol. 11, Issue 9 (2022)

Author(s):
Duppala Manojkumar, T Srinivas, LV Subba Rao, Y Suneetha, RM Sundaram and V Prasanna Kumari

Abstract:
The present experiment was conducted to study the variability and trait associations in a F₂ population derived from the cross, YH3 x AKDRMS 21-54. A high level variability in the form of high phenotypic coefficient of variation (PCV), genotypic coefficient of variation (GCV) coupled with high heritability and genetic advance as % of mean was noticed for the traits filled grains per panicle, total grains per panicle, spikelet fertility (%) and test weight. Significant and positive correlation of grain yield per plant was noticed with productive tillers per plant, filled grains per panicle and total grains per panicle indicating a scope for simultaneous improvement of these traits enhancing grain yield per plant. Filled grains per panicle also recorded high positive direct effect on grain yield per plant coupled with significant and positive association, indicating the effectiveness of direct phenotypic selection for the trait for effecting significant grain yield improvement.