Correlation and path coefficient analysis for seed yield and yield related traits in pigeon pea [Cajanus cajan (L.) Millsp.]

The study entitled Correlation and Path Coefficient Analysis for Seed Yield and Yield related traits in pigeon pea [Cajanus cajan (L.) Millsp.] took place at the Research and Education farm, Botany Department, College of Agriculture, Dapoli, during the Kharif season of 2022 across 14 various traits of Pigeon pea.

The present study “Correlation and Path Coefficient Analysis for Seed Yield and Yield related traits in pigeon pea” aimed to evaluate the association and contribution of various agronomic and yield-related traits toward seed yield per plant in Pigeon pea by employing genotypic and phenotypic correlation and path coefficient analysis. Significant variability was observed among genotypes for all traits studied. Correlation analysis revealed that traits such as number of pods per plant, test weight, harvest index, and seed yield per plot had a strong positive association with seed yield per plant at both genotypic and phenotypic levels.

Path coefficient analysis at the phenotypic level indicated that seed yield per plot, harvest index, and test weight had substantial positive direct effects on seed yield per plant, suggesting their critical role in yield determination. At the genotypic level, test weight, days to 50% flowering, seed yield per plot, and harvest index exhibited high positive direct effects, while pod length and plant height exerted notable negative direct effects.

The findings suggest that selecting genotypes with higher test weight, harvest index, and seed yield per plot can effectively enhance seed yield per plant. The integration of correlation and path analysis provides comprehensive insight for targeted selection in breeding programs.