不同玉米品种对褐斑病抗性的初步鉴定  

Identification of Resistance of Different Corn Varieties to Corn Brown Spot

作　　者：孙炳剑[1] 袁虹霞[1] 邢小萍[1] 李洪连[1] 

机构地区：[1]河南农业大学植物保护学院,郑州450002

出　　处：《玉米科学》2008年第6期132-135,共4页Journal of Maize Sciences

基　　金：国家粮食丰产科技工程河南课题(2004BA520A06-11)

摘　　要：2006～2007连续两年采用田间病圃法鉴定了不同玉米品种对褐斑病的抗病性。2006年的试验结果表明,供试的28个品种对褐斑病的抗性存在着十分明显的差异,其中达到抗病水平的有21个,占鉴定总品种的75%;中感品种6个,占鉴定总品种的21.43%;高感品种只有中科4号1个,占鉴定总品种的3.57%。2007年的试验结果表明,10个品种中达到抗病水平的有7个,占鉴定总品种的70%;中感品种3个,占鉴定总品种的30%。The resistance of corn varieties to corn brown spot was tested in disease field in 2006 and 2007. The results showed that the different of resistance among these varieties were very observable in 2006. There were 21 resistant corn varieties with the frequency of 75%, 6 moderate susceptible corn varieties with the frequency of 21.43%, 1 high susceptible corn variety with the frequency of 3.57%. In 2007, the results showed that 7 resistant corn varieties with the frequency of 70%, 3moderate susceptible corn varieties with the frequency of 30%. Although there were many resistant varieties in corn production, the principal corn varieties at present, such as Zhengdan958, Xundan20 and Ludan981 were susceptible comparatively to corn brown spot.

关 键 词：玉米 褐斑病 抗病性 

分 类 号：S435.131.48[农业科学—农业昆虫与害虫防治]