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七十年代以来国内外玉米三系育种工作开展得很活跃,T型胞质雄性不育系曾一度被广泛利用于生产,后因T型不育系及由其配制的杂交种受小斑病T型小种专化感染被迫中途停止。1971年D·R·Smith等对30种不同来源的雄花不育胞质进行抗病鉴定,结果表明:C型和S型对小斑病T型小种抗性最强。据井上康昭(1971年)报道,美国种植的玉米杂交种,雄性胞质杂交种占11.6％。我国1974年开始研究C型不育系,
Since the seventies maize three-line breeding at home and abroad to carry out very active, T-type cytoplasmic male sterile line was once widely used in the production, after the T-type CMS and the hybrids formulated by the small spot disease T-type raccoon specific infection was forced to stop halfway. In 1971, RD Smith and other 30 kinds of male sterile cytoplasm from different sources were identified, the results showed that: C and S type of small spot disease T race strongest resistance. According to Inoue Konzaki (1971), maize hybrids planted in the United States account for 11.6% of male cybrids. China started to study C-CMS in 1974,