Cotton plant faces several stresses during its life cycle that limit seed cotton yield and fiber production. Lack
of availability of potential genotypes is one of the stress main factors that the farmer community faces. A
complete diallel mating design was used to study combining ability of a set of upland cotton genotypes
developed in Pakistan. Five parents namely, IR-NIBGE-3, FH-166, KZ-189, MS-40 and B-557 were hybridized
in a glasshouse and F1 seeds with five parents were planted in field conditions. The combining ability analysis
revealed that IR-NIBGE-3 is a good general combiner for gin turnout and fiber strength, while KZ-189 and
FH-166 are good general combiners for number of bolls per plant, yield of seed cotton and fiber length. The
combination of FH-166 × B-557 and MS-40 × B- 557 exhibited the best specific combining ability for number
of bolls per plant, yield of seed cotton and gin turnout; whereas combination of KZ-189 × B-557 and MS-40 ×
KZ-189 were the best for fiber length and fiber strength, respectively. Positive and significant reciprocal
effects signify the role of female parents for their use in hybridization. SCA variance was greater than GCA
variance for all traits indicating the importance of non-additive effects in genetic control of these traits. This
study indicates that this population can be used for selection of transgressive segregants for fiber and yield
related traits and superior parents can be used in hybridization programs.
Additive and non-additive effects combining ability gene action quantitative traits Upland cotton
Primary Language | English |
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Journal Section | Articles |
Authors | |
Publication Date | December 15, 2016 |
Published in Issue | Year 2016 Volume: 21 Issue: 2 |
Turkish Journal of Field Crops is published by the Society of Field Crops Science and issued twice a year.
Owner : Prof. Dr. Behçet KIR
Ege University, Faculty of Agriculture,Department of Field Crops
Editor in Chief : Prof. Dr. Emre ILKER
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