ACTA AGRICULTURAE BOREALI-SINICA ›› 1994, Vol. 9 ›› Issue (4): 44-48. doi: 10.3321/j.issn:1000-7091.1994.04.009

Special Issue: Cotton

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Improvement of the Cotton by Interspecific Hybridization Using Eight Wild Species and Two Dip}oid Cultivated Species

Zhao Guozhong1, Feng Hengwen1, Li Aiguo1, Li Zengshu1, Sui Shuxiang1, Liang Zhenglan2, Jiang Ruqin2, Sun Zhuanwei2, Zhong Wennan2   

  1. 1. Shijiazhuang Academy of Agriculturat Science, Shijiazhuang050041
    2. Zhong WennanInstitute of Genetics, Academia Sinica, Beijing100101
  • Received:1993-12-05 Published:1994-12-28

Abstract: Ten new strains and 12 new germplasm materials were selected from the subse-quent generation of the interspecific hybridization in Gossypium in 1974-1993 using 8 wild species and 2 diploid cultivated species as male parents and some varieties of upland cotton as female parents in these interspecific crosses. Of the ten new strains, six were joined either the national wilt-resistant cotton variety tests in the Yellow River Valley or the regional tests in Hebei province. These and good fibre quality.new strains were all with such characters as wilt resistance, high yields. The 128 new germplasm materials each have its excellent characters. They were divided into 8 groups, namely high lint percentage44-48%), long fibre length 3f-40. 6mm), high fibre strength 25.333.3g/tex), big boll 7.089.3g), fine micronair 3.74.0). Aphis risistanceⅠ-Ⅱ degree), bollworm resistanceⅠ-Ⅱ degree), both Fusarium and Verticillium resistance severity index 0-10 and 8-25). These new germplasm materials all were the very valuable materials in the cotton breeding.,

Key words: Gossypium, Wild species, Upland cotton, Interspecific hybridization

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Cite this article

Zhao Guozhong, Feng Hengwen, Li Aiguo, Li Zengshu, Sui Shuxiang, Liang Zhenglan, Jiang Ruqin, Sun Zhuanwei, Zhong Wennan. Improvement of the Cotton by Interspecific Hybridization Using Eight Wild Species and Two Dip}oid Cultivated Species[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1994, 9(4): 44-48. doi: 10.3321/j.issn:1000-7091.1994.04.009.

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