山东省玉米生产品种和部分自交系对纹枯病抗性鉴定  

Identification of the resistance of hybrid maize varieties cultivated in Shandong and some inbred lines to maize sheath blight

作　　者：纪震[1] 李宝笃[1] 毕玉平[2] 周善跃[1] 

机构地区：[1]青岛农业大学农学与植物保护学院,青岛266109 [2]山东省农业科学院高新技术研究中心,济南250100

出　　处：《植物保护》2010年第4期152-154,共3页Plant Protection

基　　金：公益性行业(农业)科研专项(nyhyzx3-16);山东省农业良种工程重大课题

摘　　要：连续两年对山东省72份玉米生产品种和30份自交系材料在田间进行纹枯病抗性鉴定,采用被病原菌侵染的高粱粒作为接种物,在玉米拔节中后期接种,按照国家玉米区域试验抗性鉴定标准进行病害分级评定和抗性评价。在102份材料中抗性级别为高抗、抗、中抗、感、高感的比例分别为1.96%、20.59%、24.51%、33.33%、19.61%,生产品种‘登海3号’和‘聊玉22号’对纹枯病表现高抗。Identification of the resistance of 72 hybrid maize varieties cultivated in Shandong and 30 inbred lines to maize sheath blight was conducted in consecutive two years. The inoculation was carried out using sorghum grains infected by sheath blight pathogen which were inserted into the 2nd leaf sheath at the mid-late jointing stage of maize plants. According to the grading criteria for the disease resistance of national maize regional trials, the percentage of highly resistant, resistant, moderately resistant, susceptible and highly susceptible materials of the 102 samples were 1.96%, 20.59%, 24.51%, 33.33%, 19.61%, respectively. Among the hybrid maize varieties, ＇Denghai 3＇ and ＇Liaoyu 22 ＇ were highly resistant ones.

关 键 词：玉米品种 自交系 纹枯病 抗性 

分 类 号：S432.21[农业科学—植物病理学]