内蒙古巴盟小麦根病种类、数量及分布  

The Type,Proportion and Distribution of Wheat Root Disease in Bayenaoer Meng,Inner Mongolia

作　　者：曹春梅[1] 张建平[1] 徐利敏[1] 白全江[1] 张庆平[1] 赵存虎[1] 孔庆全[1] 齐凤鸣[1] 

机构地区：[1]内蒙古农业科学院植物保护研究所,内蒙古呼和浩特010031

出　　处：《华北农学报》2001年第2期123-126,共4页Acta Agriculturae Boreali-Sinica

基　　金：内蒙古自治区科委"九五"重点科技攻关资助项目! (96 0 10 1)

摘　　要：1997～ 1999年 ,通过巴盟 5个旗 (县 )、2 0个乡、社的调查和 160 1份采集标样的室内病原菌分离、鉴定 ,结果表明 :巴盟地区小麦根病的主要病原菌为全蚀病菌 ,其分离频率最高为59 4 % ;次要病原菌有黄色镰刀菌 ,禾谷镰刀菌 ,麦根腐德氏霉 ,丝核菌 ,交链孢菌等 7种病原菌。全蚀病在 5个旗 (县 )均有不同程度的分布、发生数量约占根病的 80 %～ 90 %。The 1601 samples of wheat root disease from 20 villages of 5 counties,Bameng in Inner Mongolia were collected and wheat root disease in the field of these counties was visually investigated during the years of 1997-1999.The results of pathogenic culture,isolation and determination indicated that the pathogenic fungus species of the wheat root disease were Gaeumannomyces graminis var.tritici, Fusarium culmorum,F.graminearum,Drechslera sorokiniana,Rhizoctonia sp.and Alternaria sp.The results of investigation showed that Take all caused by Gaeumon nomyces graminis var.tritici distributed over all 5 Counties.The proportion of Take all to all root disease was 80%-90%.

关 键 词：小麦 根病 病原种类 发生数量 分布 

分 类 号：S435.121.4[农业科学—农业昆虫与害虫防治]