PJB-2020-219
GENETIC COMPONENTS AND CORRELATION STUDIES IN COTTON (GOSSYPIUM HIRSUTUM L). FOR YIELD AND QUALITY TRAITS
Irfan Talib
Abstract
Cotton (Gossypium hirsutum L.) is sole raw ingredient and main driving force of our textile industry. In cotton improvement yield of cotton is not the sole objective but increase in fiber yield and its quality is main objective of breeding programs worldwide as well as in Pakistan. For this purpose one hundred cotton genotypes were studied under field conditions to know traits which are playing their vital role in variation, yield and fiber traits. At maturity, data for plant height, monopodial branches, sympodial branches, seed cotton yield, lint index, ginning out turn, boll size and fiber quality traits were recorded. All the hundred genotypes of cotton under study indicated notable differences for studied traits. Maximum value for cotton produce was showed by FH-313 (113.50 g) followed by MNH-886 (112.80g). FH-182 showed highest GOT (40.40%) as compare to S-3 which showed lowest (24.23%). MNH-554 (55.40) showed highest value of mean for number of bolls per plant and lowest for LA-17801. It was concluded that differences among genotypes for quality and yield traits and higher heritability (97.93%) and genetic advance (33.049) for strength of fiber and height of plant and lower for lint index (54.26%) and boll size (0.67) respectively beneficial for cotton breeding programs. Significant correlations were also found for sympodial branches, number of bolls per plant, GOT (%), seed cotton yield, fiber strength, fiber length, and fiber fineness. Higher heritability, genetic advance and significant genotypic and phenotypic correlations suggested that selection may be useful for enhancement of cotton yield and quality traits among cotton genotypes in Pakistan.
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