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一、目的与依据我省是植棉历史较久、面积较大的老棉区,也是枯黄萎病发生较早、面积较大,危害较重的老病区。五十年代多数地方以黄萎病为主,到六十年代中期,由于林彪、“四人帮”无政府主义的影响,破坏了植物检疫制度,致使黄枯萎病迅速蔓延,六十年代中期到七十年代,枯萎病迅速发展超过了黄萎病,七十年代以来黄萎病又有抬头。实践证明,种植抗病品种是防治枯黄萎病简而易行、经济有效的措施。面对混生
First, the purpose and basis The province is a long history of cotton planting, a larger area of the old cotton area, but also earlier onset, larger area, more dangerous old ward. Verticillium wilt occurred in most places in the 1950s. By the mid-1960s, due to the anarchist influence of Lin Biao and the “gang of the four,” the plant quarantine system was destroyed, causing rapid spread of the yellow wilt disease. From the mid-1960s to the seventies In the era of blight, the rapid development of blight surpassed that of verticillium wilt. Since the seventies, verticillium wilt appeared again. Practice has proved that the cultivation of disease-resistant varieties is simple and economical and effective measures for the prevention and control of verticillium wilt. In the face of mixed