Correlation and path coefficient analysis among yield and yield attributing traits of wheat (Triticum aestivum L.) genotypes.

Abstract

The present study was conducted at AKS University, Satna (M.P.) during kharif 2023-24. Altogether 25 wheat  genotypes were grown under RBD design with three replications. In this study various parameters of genetic variability, broad sense heritability and genetic advance estimated in wheat genotypes. Analysis of variance revealed that the mean sum of square showed significant due to genotypes for all the 14 characters studied. These Genotypes AD2967 (42.23) followed Gwala (42.08), HI 8381 (41.22), HI8498 (40.36) respectively identified as desirable genotypes with high data for seed yield per plant. Flag leaf width, flag leaf length and test weight  recorded high estimates for PCV & GCV. The phenotypic coefficients of variation were higher than genotypic coefficient of variation which indicates that this is due to environmental factors. High heritability associated with high genetic advance for Test weight (99.7 % & 38.38), showed high heritability accompanied with high genetic advance which indicated that most likely the heritability due to additive gene effects and selection may be effective in the early generation for these traits. Which  indicates that the importance of these traits in further breeding programme. Whereas high to moderate heritability along with low estimates of genetic advance which indicates that non additive gene effects. The genotypes which shows non additive gene effects will not be consider for further breeding programme. Seed yield per plant showed the positive significant genotypic association with Test weight (0.8465^**), biological yield per plant (0.6903^**), No. of tiller per plant (0.3396^**), Harvest Index% (0.2504^**). The correlation coefficient showed negative significant association with days to 50% flowering (-0.2393). Seed yield per plant had a direct positive effect at genotypic level on Biological yield per plant (1.2903), Harvest index (0.9583), Days to Maturity (0.1157), Days to 50%\ flowering (0.0626), flag leaf width (0.0123), and kernel length (0.0941). These characters are considered for next generation for yield computation of wheat genotypes