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A Study on Culturing Characters and Pathogenic Differentiation of Veticillium dahliae from Cotton in Xinjiang

Li Guoying\ Huo Xiangdong\ Tian Xinli et al. (Dept of Agri Science,Agri Col,Shihezi Univ,Shihezi 832003) \;  
Culturing characters and pathogenic differentiation of the 30 strains of Verticillium dahliae of cotton collected in different regions in Xinjiang were studied from 1996 to 1999.It showed that culturing charaters of Verticillium dahliae from cotton in Xinjiang had distinction the strains could be divided into three pathotypes:strong,mild and weak strains.Verticillium dahliae from cotton belonged to weak pathotype in the past,but today,it shows that the pathotype of Verticillium dahliae from cotton in Xinjiang is a strong type in mid Asia by the response of identification host and sensitivity of most of the strains to Tashigan 1,2.\;
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