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六十年代,我国曾在陆地棉(G. hirsutum L.)和海岛棉(G. barbadense L.)杂种优势利用方面,取得了很大进展。目前,在不少植棉地区开展了陆地棉品种间杂种优势的利用,但大面积推广仍然受到一定限制。在棉花雄性不育三系配套问题未得到解决以前,主要关键在于人工去雄制种手续比较复杂,
In the 1960s, great progress has been made in the utilization of heterosis in G. hirsutum L. and G. barbadense L. Our country has made great progress. At present, the utilization of heterosis among upland cotton varieties has been carried out in many cotton-planting areas, but the large-scale promotion is still subject to certain restrictions. Prior to the cotton maize three-line male sterile mating problem has not been solved before, the key is that the artificial seed removal procedures more complicated,