将棉属的某些野生种及亚洲棉所具有的珍贵性状或种质,如高的纤维强力、抗病、抗虫、抗旱、抗低温等性状,通过种间杂交转育于生产上利用的栽培种,这是遗传育种家长期以来的愿望。但由于种间杂交存在不亲和性,一般很难杂交成功,致使种质转育的愿望难以实现。前人及我们的研究(1979)表明,授粉后二天的种间杂交胚珠中,相当一部分已进 Some precious species or germplasms of cotton plants of Asia, such as high fiber strength, disease resistance, insect resistance, drought resistance, low temperature resistance and other properties, are transplanted through interspecific hybridization in production Cultivars, this is a long-standing desire of genetic breeding. However, due to the incompatibility of interspecific hybrids, it is generally difficult to cross success, making the desire of germplasm transfer difficult to achieve. Predecessors and our study (1979) showed that a significant proportion of interspecies hybrids ovules two days after pollination have entered