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１９９１～１９９３年，从甘肃庆阳、武威等地区的７个县（市）采集小麦生育期病根标样１７３４份，进行室内病原分离及致病性测定。结果表明：引起省内小麦根病的病原种类有全蚀病菌小麦变种（Ｇａｅｕｍａｎｎｏｍｙｃｅｓｇｒａｍｉｎｉｓｖａｒ．ｔｒｉｔｉｃｉ）、全蚀病菌一新变种（Ｇ．ｇｒａｍｉｎｉｓｖａｒ．ｓｐ）、麦根腐病菌（Ｂｉｐｏｌａｒｉｓｓｏｒｏｋｉｎｉａｎａ）、小麦生离蠕孢菌（Ｂ．ｔｒｉｔｉｃｉｃｏｌａ）、黄色镰刀菌（Ｆｕｓａｒｉｕｍｃｕｌｍｏｒｕｍ）、禾谷镰刀菌（Ｆ．ｇｒａｍｉｎｅａｒｕｍ）、早熟禾根腐镰刀菌（Ｆ．ｐｏａｅ）和丝核菌（Ｒｈｉｚｏｃｔｏｎｉａｓｐ）等１０种病原菌，其中全蚀病菌分离频率最高（４８．３％）、致病力最强（病指６０．２～１００），是甘肃省小麦根病的主要病原菌
From 1991 to 1993, 1734 samples were collected from 7 counties (cities) in Qingyang and Wuwei areas of Gansu province for the isolation of pathogen and the pathogenicity determination. The results showed that there were Gaeumannomyces graministris var. Tritici, G. graminisvar.sp, Bipolaris sorokiniana, 10 pathogenic bacteria such as B. triticieola, Fusarium culmorum, F. graminearum, F. poae and Rhizoctonia spp. Among them, the total eclipse bacteria had the highest frequency of isolation (48.3%) and the strongest pathogenicity (disease index of 60.2 ~ 100), which was the main pathogen of wheat root disease in Gansu Province