棉 花 学 报 Cotton Science 2007，19(5)：391-398 A Summary of Researches on Main Cotton Diseases Abstract：The progresses of cotton disease research in the recent 50 years which mainly focused on cotton Fusarium wilt and cotton Verticillium wilt were reviewed. The Countrywide Cooperation Group on Cotton Fusarium wilt and Cotton Verticillium wilt promoted the researches on cotton disease remarkably， especially on the identification of pathogenic type (strains) of Verticillium dahliae Kleb. and Fusarium oxysporium f.sp.，mechanism and identification method of resistance to cotton diseasees，cotton disease resistannce identification of germplasm resources，researches of defoliating cotton Verticillium wilt， breeding for disease resistance and coating cotton seeds. The heredity of resistance to cotton Fusarium wilt and cotton Verticillium wilt，variation of pathogenic type of Verticillium dahliae Kleb. ， characteristics and mechanism of disease occurrence and breeding for disease resistance in transgenic cotton should be attached importance to.
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