吉林省玉米茎腐病病原菌种类的分布

Distribution of Species of Pathogens of Corn Stalk Rot in Jilin Province

摘要:

我省玉米茎腐扁三种病原菌的分布受降水量的影响有地域性,年度问也有差异,东南部腐霉菌略多，中部禾备镰77菌梢多。西部则串珠镰刀菌偏多干其它两种。一般是两种以上病原菌复合侵染。吉林省玉米堇腐病的症状主要是黄桔类型．

Abstract:

Distribution of the tbree pathogens of corn stalk rot in Jilin Province shows zonation because of the effection of precipitation,and there are differences in different year.Pythium spp.is a little more in southeastern region.F.graminearm a slight more in central region.and F.moniliforme more than the two others in western region. Generally,Corn is infected by more than two pathogens.The symptom of corn stalk rot in Jilin Province is mainly yellow blight.