Genetic analysis of some fibre quality characters in Gossypiumhirsutum L.
2005
Inam-ul-Haq | Azhar, F.M.,University of Agriculture, Faisalabad(Pakistan). Dept. of Plant Breeding and Genetics
Mean squares for both general (GCA) and specific combining ability(SCA) effects were significant for the expression of fibre length andfibre fineness, but GCA effects for fibre strength were non-significant.The larger proportion of variance due to SCA for fibre fineness andfibre strength revealed the nature of gene action to be non-additive,while magnitude of genetic variance due to GCA was greater for fibrelength showing the genetic control under gene effect. The variety NIAB-98 proved to be the best general combiner for fibre length and fibrestrength, and CIM-435 proved to be the best general combiner for fibrefineness. The cross NIAB-98 x CIM- 435 with higher numerical value wasrevealed to be the best varietals combination for fibre fineness, and forfibre length cross Arizona-6218 x Carolina-173 was shown to be betterthan other combinations. Similarly, for fibre strength cross CIM-435 xCarolina-173 appeared to be the promising one among the varietalscombinations.
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