2016年黑龙江省玉米大斑病调查与分析  

Investigation and Analysis on Occurrence of Northern Leaf Blight of Corn in Heilongjiang Province in 2016

作　　者：孙丽萍[1] 张思奇[1] 赵同雪 徐澜坤 李永刚[1] 

机构地区：[1]东北农业大学农学院,哈尔滨150030

出　　处：《东北农业科学》2017年第4期36-38,共3页Journal of Northeast Agricultural Sciences

基　　金：科技部"粮食丰产增效科技创新"重点专项(2016YFD0300704);黑龙江省教育厅科学技术研究项目(12541013)

摘　　要：为充分了解黑龙江省玉米大斑病的发生动态及危害情况,2016年选择在黑龙江8个地级市50个地点对玉米大斑病进行调查分析。结果表明,50个不同地理区域玉米大斑病均有发生,但存在显著差异,其中大庆市让胡路区发病最轻,病情指数为1.48,哈尔滨市双城区周家镇发病最重,病情指数为60.37,但8个地级市之间玉米大斑病发生程度不存在显著差异。总体上说,黑龙江省玉米大斑病不同地理区域病害发生不均衡,田间病原物的数量丰富,预测2017年黑龙江省玉米大斑病中等程度发生,局部地区玉米大斑病有严重发生的趋势。In order to fully understand the damage situation and occurrence dynamic of northern leaf blight of corn in 50 different sites of Heilongjiang Province, diseases investigation were conducted in 2016. The results showed that northern leaf blight of corn had already been occurring commonly in all survey sites. Statistical analysis showed that there was significant difference in disease indexes in different geographical regions. And the lowest disease indexes was 1.48 in Ranghulu District, Daqing City and the highest was 60.37 in Zhoujia Town, Shuangcheng Distrct, Harbin City. But there were no significant difference among different prefecture-level city. In a word, the occurrence of northern leaf blight of corn was unevenly in different geographical regions of Heilongjiang Province. The number of pathogenic fungi were still abundant in field. It was predicted that the disease would be a moderate expression in Heilongjiang Province in 2017, but there would be a high possibility of disease occurrence in some areas.

关 键 词：黑龙江省 玉米 大斑病 调查 预测 

分 类 号：S435.131.4[农业科学—农业昆虫与害虫防治]