不同玉米品种对弯孢霉叶斑病的抗病性研究  

Resistance of Different Corn Cultivars against Corn Curvalaria Leaf Spot

作　　者：张军华[1] 杜学林[1] 邢光耀[1] 

机构地区：[1]聊城大学农学院,山东聊城252000

出　　处：《河南农业科学》2006年第8期86-88,共3页Journal of Henan Agricultural Sciences

摘　　要：对20个玉米品种进行了抗弯孢霉叶斑病研究,结果表明,不同玉米品种对弯孢霉叶斑病存在着一定的抗病性差异。其中中感品种为先行3号,病情指数为15.52%;高抗品种为富友1号和振杰2号,其余的品种皆为中抗。除此之外,还分析了影响玉米弯孢霉叶斑病发生的因素,其发病程度除受品种抗病性等因素的影响外,主要取决于8月中、下旬的降雨日和降雨量。Experimerntal results of 20 corn cultivars suggested that the 20 cultivars showed certainly difference of resistance. Xianxing 3 was middle sensitive to the disease with 15.52% of infection index, Fuyoul and Zhenjie 2 were high resistant to the disease, the rest all showed middle resistance. In addition, the raining days and rainfall amount of the middle or last ten days in August were important factors effecting corn curvalaria leaf spot.

关 键 词：玉米弯孢霉叶斑病 病情指数 抗病性 

分 类 号：S435.131[农业科学—农业昆虫与害虫防治]