Path Coefficient Analysis in Half Diallal Hybrids of some Glandless Cotton Cultivars (Gossypium hirsutum L.)
Feb 8, 2019
This study was carried out in 1992-93 in the Cukurova and South Eastern Anatolian Project (GAP) region to determine relationships between important agronomic and fiber characteristics in a population that contained parents and half diallel hybrids of ten glandless cotton cultivars. For characters that gave significant correlations with seed cotton yield, direct and indirect relationships were determined using path coefficient analysis. In the Cukurova region, the direct effect of plant height on the seed cotton yield was 63.6%, of boll weight 33% and of seed cotton weight per boll 51.3%. While the direct effect of fiber length on seed cotton yield was 16.5%, its indirect effect through seed cotton weight per boll was 41.8%. Similarly, in the GAP region, the direct effect of plant height on the seed cotton yield was 87.5% and of seed protein percentage 88.2%. While the direct effect of boll number on seed cotton yield was 5%, its indirect effect on plant height was 76%.