70年代以来,我国棉花枯、黄萎病发展蔓延迅速,为害严重。科学工作者先后培育出了抗枯萎病品种陕棉4号、陕401、86-1等,曾一度提高了棉区生产水平。后来由于这些品种多为单抗,不能控制黄萎病的发生为害,致使混生病区黄萎病回升为害十分严重,从而引起了有关科学工作者的关注。为了尽快地培育出更多的兼抗品种,加强了抗黄萎 Since the 1970s, the development of cotton withered and Verticillium wilt in China has been rapidly spread and seriously harmed. Scientists have cultivated a variety of fusarium wilt cotton Shaanxi 4, Shaanxi 401, 86-1, once increased the cotton production level. Later, due to the fact that most of these cultivars were monoclonal antibodies and could not control the occurrence of Verticillium wilt, the verticillium wilt disease in the mixed ward was very serious and caused the concern of scientists. In order to cultivate more concurrent varieties as soon as possible, strengthening the resistance to yellow wilt