Abstract
Combining ability analysis of the data regarding yield of seed-cotton, number of bolls, boll weight, seed index and lint index revealed that both general and specific combining ability effects were significant in the expression of almost all the characters. However, proportion of variance components due to gca remained greater remained greater for yield of seed-colton and number of bolls. The inheritance of boll weight, seed index and lint index was shown to be conditioned by genes acting non-additively. Line A 8100 proved to be the best general combiner for yield of seed-cotton and number of bolls, whereas PO 695 remained better for seed and lint indices. For boll weight the parent AUH 50 showed its superiority for general combining ability.
