Correlations and Path-Coefficient Analysis for Oil Content in Seed and Plant and Seed Characteristics of Sunflower (H. AnnuusL.)

Mutual relationships have been studied between seven plant end seed characteristics (plant height, number of leaves per plant, 1000-seed mass, hectoliter mass, kernel content, seed thickness, seed width) and their correlation with oil content in seed. Significant of highly significant correlations have been found between oil content on one side and 1000-seed mass, hectoliter mass, kernel content, and seed thickness on the other. Anon-significant negative correlation was registered for the number of leaves per plant, non-significant positive correlations for plant height and seed width. The path analysis has revealed a highly significant positive direct effect of hectoliter mass and kernel content and a significant negative direct effect of seed width on oil content in seed. The coefficient of determination has shown that 79.5% of the total variability for oil content were controlled by the factors studied.