Evaluation of genetic variability parameters for yield, yield attributes and fibre quality traits in the F2 population of Gossypium hirsutum L.

The F2 populations of the crossings CO 14 × NDLH 1938 and CO17 1755 were used to investigate variability heritability studies in order better understand gene action involved each characteristic studied. Morphological data viz., days first flowering, plant height (cm), number sympodials, bolls per plant, boll weight (g), ginning outturn (%), upper half mean length (mm), elongation percentage (%) micronaire value (µg/inch) all recorded both populations. Studies genetic advance as a percent help us determine if is additive or epistatic nature, so undergo appropriate breeding programmes for population enhancement. PCV (Phenotypic Coefficient variation) was always greater than GCV (Genotypic coefficient indicating environment also plays major role contributing variations. seed cotton yield alone shown exhibit with high strong mean, suggesting that it might be direct selection since most important attribute development.