Vol. 9, Special Issue 9, Part R (2025)

The present investigation entitled “Evaluation of advanced breeding lines of rice (Oryza sativa L.) for enhancing yield potential” was carried out during Kharif 2024 at the Instructional cum Research Farm, S.G. College of Agriculture and Research Station, Jagdalpur, Bastar (C.G.). Fourteen advanced breeding lines including checks were evaluated in a Randomized Block Design with three replications to assess genetic variability and to study association among yield and its attributing traits. Analysis of variance revealed highly significant differences among genotypes for all traits, indicating substantial genetic variability. High heritability with high genetic advance was observed for number of filled grains per panicle and grain yield, suggesting the predominance of additive gene action. Correlation analysis revealed grain yield had a strong positive association with biological yield and panicle length. Path analysis further confirmed biological yield exerted the highest direct effect on grain yield, followed by kernel and grain L:B ratios. These results suggest that selection for these traits could effectively enhance yield potential in rice breeding programs.