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试验采用中国科学院遗传所创立的棉属种间杂交新技术,即对杂交铃喷(滴)GA_3(5 oppm)、NAA(4 oppm)—离体培养杂种胚—试管内染色体加倍,于1981年获得了陆地棉(科遗181)×比克氏棉的F_1杂种。再与陆地棉三次回交及3～4次自交和选
In this study, we used the new interspecific hybridization technique of cotton genus established by the Institute of Genetics of Chinese Academy of Sciences to double the number of chromosomes in hybrid embryos and test tubes for hybridization of GA_3 (5 oppm) and NAA (4 oppm) F_1 hybrids of upland cotton (Keti 181) × Beech cotton were obtained. Then three times with Upland cotton back and 3 to 4 times self-selection and selection