ACTA AGRICULTURAE BOREALI-SINICA ›› 1992, Vol. 7 ›› Issue (2): 55-59. doi: 10.3321/j.issn:1000-7091.1992.02.010

Special Issue: Cotton

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The Physiological Bases for Interspecific Hybrids of Intensive Type Cotton

C M Gazyantz1, Zhai Xuejun2   

  1. 1. Biological Experiment Institute;
    2. Cotton Research Institute, Hebei Academy of Uzbek Academy
  • Published:1992-06-28

Abstract: F1 obtained through crossing the dwarf and early maturing species G. hirsutum L. with G. barbadense L. expressed weaker heterosis in vegetative growth and stronger heterosis in reproductive growth. The leaf area and chloroplast amount in the intensive-type hybrids of G. hirsutum L. and G. barbadense L. were less, and photosynthetic intensity and photochemical activity for single chloroplast were higher than those of their parents. The hybrid economically utilized the cell resources. The progenies obtained through hybridizing cultivated species with wild or semiwild subspecies showed obvious nucleocytoplasmic interaction effects. lt was found out that when the wild and semiwild subspecies were used as maternal parents, the main stem height, fruit bianch length, leaf area and root system of their hybrids were inhibited.

Key words: Cotton, Interspecific hybrid, Photosynthysis, Photochemical activity, Nucleocytoplasmic interaction

Cite this article

C M Gazyantz, Zhai Xuejun. The Physiological Bases for Interspecific Hybrids of Intensive Type Cotton[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1992, 7(2): 55-59. doi: 10.3321/j.issn:1000-7091.1992.02.010.

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