PJB-2010-63
GENETIC VARIATION AND HERITABILITY FOR COTTON SEED, FIBER AND OIL TRAITS IN GOSSYPIUM HIRSUTUM L.
NAQIB ULLAH KHAN1*, KHAN BAHADAR MARWAT2, GUL HASSAN2, FARHATULLAH1, SUNDAS BATOOL1, KHADIJAH MAKHDOOM1, WAQAS AHMAD3 AND HABIB ULLAH KHAN4
Abstract
The research work pertaining to the study of genetic variability, heritability, genetic gain and correlation for cottonseed, fiber and cottonseed oil % in Gossypium hirsutum cultivars was conducted during 2005 at NWFP Agricultural University Peshawar, Pakistan. Analysis of variance manifested highly significant differences among the genotypes for all the traits except seeds per locule. Genetic potential range of eight cotton cultivars for different parameters was recorded i.e. seeds locule-1 (6.33 to 6.60), seeds boll-1 (26.10 to 28.47), seed index (8.61 to 9.69 g), lint index (5.35 to 6.05 g), lint % (35.17 to 38.13 %), seed cotton yield (1200 to 2450 kg ha-1) and cottonseed oil % (27.52 to 30.15%). Genetic variances were found almost greater than the environmental variances for all the traits except seeds locule-1 and seed index. High broad sense heritability and selection response were also formulated for seeds boll-1 (0.67, 0.84), seed index (0.77, 0.47 g), lint index (0.96, 0.33 g), lint % (0.96
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