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近20年来,国内外先后发现和培育了一批棉花雄性不育系和材料,除国外已培育出二、三种质核互作型雄性不育系外,大多为核基因雄性不育。Justus(1960)、Kohel(1961)、Weaver、J.B.Jr.(1968)、Rhyne(1971)和Bowman(1978)等人,根据棉花雄性不育基因属显性或隐性、不育程度、不育基因数、不育基因与性状相关,以及小孢子败育过程的差异等,已确定了9个基因型雄性不育材料,并命名了11个基因符号为 MS_(11)。上述不
In the recent 20 years, a number of cotton male sterile lines and materials have been discovered and cultivated at home and abroad. Except for the second and third nuclear-type male sterile lines cultivated in foreign countries, most of them are male sterile nuclear genes. According to the dominant or recessive gene of cotton male sterility gene, the degree of sterility, infertility, male sterility, Nine genotypes of male sterile materials were identified, and 11 gene symbols named MS_ (11) were identified. The number of genic male sterility genes was correlated with traits and differences of microspore abortion. No above