草业学报2016，Vol.25Issue(3)：52-59,8.DOI:10.11686/cyxb2015260
东北与华北地区紫花苜蓿病害调查与主要病害流行规律研究
The major types and epidemic trends of alfalfa diseases in Northeast and North China
摘要
Abstract
Alfalfa diseases in Northeast China (Heilongjiang and Jilin Provinces)and North China (Hebei Prov-ince and the Inner Mongolia Autonomous Region)were investigated in 2013 and 2014.Fourteen alfalfa diseases were found in Northeast China,12 in Heilongjiang Province and 10 in Jilin Province,and 17 diseases were found in North China,10 in Hebei Province and 13 in Inner Mongolia.Common leaf spot,spring black stem and leaf spot,stemphylium leaf spot,downy mildew and Fusarium root rot were the five most prevalent disea-ses that would cause serious plant damage in Northeast China.The occurrence of these diseases peaked in July and August.Major differences existed in the disease varieties found at each investigation site in North China. There were five major diseases (downy mildew,rust,stemphylium leaf spot,spring black stem and leaf spot and Fusarium oxysporum root rot)which would cause serious damage in Inner Mongolia,especially when their occurrence peaked from June to September.Six diseases (common leaf spot,rust,stemphylium leaf spot,spring black stem and leaf spot,Fusarium equisetum root rot and anthracnose)were found in Langfang City and four (downy mildew,common leaf spot,rust and spring black stem and leaf spot)in Zhangjiakou City of Hebei Province.These diseases would cause serious damage,especially when their occurrence peaked from July to October for Langfang City and from June to October for Zhangjiakou City.关键词
东北地区/华北地区/紫花苜蓿/病害调查/流行规律Key words
Northeast China/North China/alfalfa (Medicago sativa )/disease investigation/epidemic laws引用本文复制引用
王瑜,袁庆华,苗丽宏,张丽,潘龙其..东北与华北地区紫花苜蓿病害调查与主要病害流行规律研究[J].草业学报,2016,25(3):52-59,8.基金项目
“十二五”国家科技支撑计划课题（2011BAD17B01）和公益性行业（农业）科研专项经费项目（201303057）资助。 （）
