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Assessment of gene action and combining ability for fibre and yield contributing trais in interspecific and intraspecific hybrids of cotton

Author

Listed:
  • Sana MUNIR

    (Department of Plant Breeding and Genetics, Bahauddin Zakariya University, Multan, Pakistan)

  • Muhammad Kamran QURESHI

    (Department of Plant Breeding and Genetics, Bahauddin Zakariya University, Multan, Pakistan)

  • Ahmad Naeem SHAHZAD
  • Hamid MANZOOR

    (Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, Multan, Pakistan)

  • Muhammad Ahmad SHAHZAD

    (Department of Statistics, Bahauddin Zakariya University, Multan, Pakistan)

  • Kashif ASLAM

    (Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, Multan, Pakistan)

  • Habib-Ur-Rehman ATHAR

    (Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan)

Abstract

Combining ability analysis was performed in order to identify high-yielding genotypes and hybrids. Six lines were crossed with three testers using a line × tester mating design. General combining ability (GCA) of parents, specific combining ability (SCA) of hybrids and gene action for several yield components and fibre were studied in the experiment. Additive gene action was observed in most traits except bolls/plant, sympodia/plant, monopodia/plant, total nodes, seed index, lint/seed, staple strength and seed cotton yield/plant which were influenced by non-additive gene action. GCA revealed that Giza-7 was a good general combiner for staple length, staple strength, seed index, boll weight, bolls/plant and monopodia/plant and BH-167 was good for ginning outturn (GOT) and sympodia/plant. Results of SCA values for hybrids indicated, that the cross Giza-7 × MNH-886 was a superior specific combiner for staple length, monopodia/plant, staple strength and seed cotton yield/plant; CIM-554 × CIM-557 for boll weight, sympodia/plant and lint weight/boll; BH-167 × MNH-886 for GOT and bolls/plant. Selection of such hybrids and good general combiners could be further exploited for yield improvement.

Suggested Citation

  • Sana MUNIR & Muhammad Kamran QURESHI & Ahmad Naeem SHAHZAD & Hamid MANZOOR & Muhammad Ahmad SHAHZAD & Kashif ASLAM & Habib-Ur-Rehman ATHAR, 2018. "Assessment of gene action and combining ability for fibre and yield contributing trais in interspecific and intraspecific hybrids of cotton," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 54(2), pages 71-77.
    • Handle: RePEc:caa:jnlcjg:v:54:y:2018:i:2:id:54-2017-cjgpb
    DOI: 10.17221/54/2017-CJGPB
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