1987年全国小麦秆锈菌生理小种消长分析  

Racial Identification of wheat Stem Rust of China in 1987

作　　者：黄振涛[1] 姚平[1] 曹远银[1] 吴友三[1] 

机构地区：[1]沈阳农业大学植物免疫研究室

出　　处：《沈阳农业大学学报》1989年第4期436-438,共3页Journal of Shenyang Agricultural University

摘　　要：1986年从全国采集到小麦秆锈病标样175份,繁殖存活125份,成活率为71.4%。在185个菌株中鉴定出21C3、34C2、34、34C1和34C35个生理小种,出现频率各为75.7%、14.6%、4.3%、3.8%和1.6%。21C3仍为当前优势小种,34C2居第二位。小麦秆锈菌的离体叶培养通过3年对比试验,已进入实用阶段。Out of the 175 uredial samples of Puccinia graminis var.tritici col- lected from thirty-two sites in sixteen provinces and autonomous regions in 1986,125 survired and their survival rate was 71.4%.Five races were iden- tifed from the 185 isolates from the surviving samples.They were races 21C3,34C2,34,34C1 and 34C3,and their frequencies were 75.7%,14.6%, 4.3%,3.88% and 1.6%,respectively.Race 21C3 still remained dominant and race 34C2 occupied the second position. In addition,the detached host leaf culture method for identifying races of stem rust hast has been successfully put into use.

关 键 词：小麦 秆锈病 秆锈菌 生理小种 消长 

分 类 号：S435.121.4[农业科学—农业昆虫与害虫防治]