黑龙江省西部地区先玉335与改良先玉335大斑病病情发展对比动态分析  

Dynamic Analysis on the Disease Progression of Maize Leaf Blight Between Xianyu335 and Improved Xianyu335 in Western Region of Heilongjiang Province

作　　者：浦子钢[1] 

机构地区：[1]黑龙江省农业科学院齐齐哈尔分院,黑龙江齐齐哈尔161005

出　　处：《玉米科学》2013年第4期119-123,共5页Journal of Maize Sciences

基　　金：国家现代农业产业技术体系建设专项资金(CARS-02-43);齐齐哈尔市政府科学技术研究基金项目(NYGG-0805)

摘　　要：对玉米品种先玉335和改良先玉335及亲本进行玉米大斑病田间最大病斑平均面积和病情指数的动态模拟分析,得到病斑面积和病情指数的曲线图和逻辑斯蒂模型。结果表明,改良先玉335及其亲本在对玉米大斑病的抗性上优于先玉335及其亲本。根据逻辑斯蒂模型分析,先玉335在本地区种植防治玉米大斑病的最佳时期是7月27日前。The research on dynamic simulation analysis of average field maximum lesion area and disease index of the breed Xianyu335, improved Xianyu335 and the parent was conducted, the curve diagram and logic of Chris- tian＇s model of lesion area and disease index were got. The results showed that the resistance to maize leaf blight of improved Xianyu335 and its parents were higher than the that of original Xianyu335 and its parents, according to the logical analysis of Christian model, the optimal period of controlling this disease in the local area of Xianyu335 was before July 27th.

关 键 词：玉米大斑病 动态分析 逻辑斯蒂模型 

分 类 号：S435.131[农业科学—农业昆虫与害虫防治]