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从墨西哥引进了陆地棉7个种系和mexicanum共249份材料,在海南岛进行了纯化整理及农艺特性分类研究。各种系一般分为1～3个普通类型,另有特矮生、特大铃,特小铃等7个特殊类型。特矮生种系在国内外报道尚少,为棉花矮化育种高密度种植提供了物质基础。
A total of 249 materials of 7 germplasm and mexicanum of G. hirsutum were introduced from Mexico, and their purification and classification of agronomic traits were studied in Hainan Island. Various departments are generally divided into 1 to 3 ordinary types, and another special short life, extra large bell, bell special 7 special types. Tertiary dwarf germplasm reports at home and abroad are still few, providing the material basis for high-density cotton dwarf breeding.