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Study on pathogenic anastomosis group of Rhizoctonia causal agent of sharp eyespot of wheat in Hubei Province

Yu Dazhao et al. (Plant Protection Institute,Hubei Acad.Agric.Sci.,Wuhan 430064,China)  
Sixty-five isolates were obtained from sharp eyespot lesions on wheat culms in Xiangfan,Jingzhou,Yichang,Wuchang,etc..from 1997 to 1999,among these isolates,forty-three were identified to binuclear Rhizoctonia and twenty-two were polynuclear Rhizoctonia. They were classified under AGD,AG 5,AG 4,AG 2-IIIB ,AG 1-IC after being anastomosed with the tester isolates of R.cerealis and Solani 43,12,6,2,2 respectively. The corresponding frequency was 66 2%,18 5%,9 2%,3 1%,3 1% respectively.
【Fund】: 国家“九五”重点攻关课题;; 湖北省农科院招标课题基金资助
【CateGory Index】: S435.121
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