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我们于1994年发现了玉米光敏雄性不育材料CA507，经过初步研究，认为该玉米光敏感雄性不育材料在短日照条件下表现雄性不育，在长日照条件下表现雄性可育，育性转换的临界日照长度是14～15h。光敏雄性不育性状表现隐性遗传。
We found the maize photoperiod male sterile material CA507 in 1994. After a preliminary study, we concluded that the maize photoperiod male sterile material is characterized by male sterility under short-day conditions, male-fertile under long-day conditions, fertility conversion The critical sunshine length is 14 ~ 15h. Photosensitive male sterility trait showed recessive inheritance.