Vol. 9, Issue 2, Part C (2025)

This study aimed to investigate the genetic and phenotypic relationships among yield-related traits in wheat (Triticum aestivum L.) using 56 wheat treatments, including 45 F₁ hybrids, 10 parental lines, and one standard variety (HD 2967). The experiment was conducted at the Research Farm of BRD PG College Deoria, during rabi 2020-21 in RBD field experimental design with three replications, focusing on traits such as plant height, spikelet per spike, grain yield per plant, and harvest index. Analysis of variance (ANOVA) revealed significant differences among genotypes, highlighting substantial genetic variability for these traits. Genotypic correlation analysis showed that plant height and spikelet per spike positively influenced thresh ability and grain yield, whereas grain weight per spike exhibited negative correlations with plant height and days to flowering. Path coefficient analysis demonstrated that traits such as spikelet per spike, harvest index, and gluten content had strong direct effects on grain yield, while days to maturity and effective tillers per plant had complex indirect contributions. These findings underscore the importance of optimizing key traits like spikelet per spike and harvest index in breeding programs for higher yield potential. The study provides valuable insights into the genetic and phenotypic factors influencing wheat productivity and highlights the need for targeted breeding approaches to enhance grain yield per plant.