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报道了利用生物技术，从具正常细胞质的优良自交系５００３体细胞中，选出细胞质雄性不育（ＣＭＳ）突变无性系（编号：９２－１Ａ）的初步结果。多年对９２－１Ａ分析表明，９２－１Ａ的不育性是稳定遗传的核质互作型，不育性的恢复是受１对显性核基因所控制，不育性可由反Ｂ保持、由Ｅ２８恢复。９２－１Ａ在抗大、小斑病和与Ｅ２８的配合力上，保持或略优于亲本５００３。
The preliminary results of a cytoplasmic male sterile (CMS) mutant clone (No. 92-1A) selected from the elite inbred 5003 somatic cells with normal cytoplasm were reported using biotechnology. The analysis of 92-1A over many years showed that the sterility of 92-1A was a stable inheritance of nuclear cytoplasm. The restoration of sterility was controlled by a pair of dominant nuclear genes, and sterility was maintained by anti-B E28 recovery. 92-1A remained or slightly better than the parental 5003 in resistance to large and small spot disease and the combining ability with E28.