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玉米雄花不育T细胞质的发现,是玉米遗传学上的一大突破。T型不育系曾先后在美国、苏联与中国应用于配制玉米杂交种。1970年T型杂交种占美国生产面积的85％以上,由于小斑病菌T小种流行,玉米总产量损失15％以上。实际上,菲律宾早在1960年,中国早在1963年就已报道了T型不育系较其相应的保持系感病严重,大批不育系资源遭到毁灭。所有这些可说是玉米育种史上的惨痛教训。
The discovery of male sterile T-cytoplasm in maize is a major breakthrough in maize genetics. T-CMS has been used in the United States, the Soviet Union and China in the preparation of corn hybrids. T-hybrids accounted for more than 85% of the US production in 1970, and due to the prevalence of the T-speckles, the total yield of maize was lost by more than 15%. In fact, in the Philippines as early as 1960, China reported as early as 1963 that the T-CMS was more susceptible than its corresponding maintainer and the resources of a large number of sterile lines were destroyed. All of this can be traumatic lesson in the history of corn breeding.