宁夏小麦黑胚病的病原鉴定  

THE PATHOGENETIC FUNGI OF THE BLACK EMBRYO DISEASE OF WHEAT IN NINGXIA

作　　者：李文强[1] 程雪莲[1] 赵海梅 叶瑞英 

机构地区：[1]宁夏农学院,宁夏永宁750105 [2]宁夏水利学校,银川750004 [3]宁夏农垦科学研究所,银川750021

出　　处：《宁夏农学院学报》2001年第3期18-20,26,共4页Journal of Ningxia Agricultural College

摘　　要：试验结果表明 ,小麦黑胚病在宁夏主要麦区均有发生 ,当前推广品种中黑胚率在2 .0 %～ 4 0 .5%。引起宁夏川区小麦黑胚病的病原主要为细交链格孢菌 (AlternariatenuisNees) ,发生率为 60 %。其次为细极链格孢菌 (Alternariawil.)和小麦根腐平脐蠕孢菌 (BipolarissorokinianaSacc .exSorok) ,其发生率分别为 2 5%和 15%。The Result of investigation showed that the black embryo disease of wheat occurred very commonly in Ningxia. The infectious rste of the disease in most commercial varieties tested was around 2.0--40.5%. The chief diseaseproducing germ of the black embryo disease of wheat is Alternaria Tenuis Ness. The frequency of infection by the fungi is 60%. A.tenuissa Wil. take the second position and Bipolaros sorokiniana is the third, which showed a lower frequency. Their infectious rate are 25% and 15%, respectively.

关 键 词：宁夏 小麦 黑胚病 病原菌 

分 类 号：S435.121[农业科学—农业昆虫与害虫防治]