摘要
采用西瓜细菌性果斑病不同越冬菌源和接菌方法对西农9号进行致病力试验,结果表明:病果浸出液、干存病叶、湿存病叶和带菌土壤越冬后的菌源,都有致病力,以带菌土壤和干存越冬病叶越冬的菌源致病力较强;浸种、淋蔸、针剌和喷雾4种接菌方法对不同越冬菌源的致病力有一定的影响,以针剌接菌方法的致病力最强。该试验结果为深耕翻土、清除田间带病残体、土壤消毒、减少田间操作造成伤口等防治措施的推广提供了科学的依据。
Using different over-wintering pathogen sources of watermelon bacterial fruit blotch and different inoculated-pathogen methods to test the pathogenicity of Xinong No.9.The results showed that the over-wintering pathogen sources of diseased fruit extract,dry diseased leaf,fresh diseased leaf and bacteria carrying soil all had pathogenicity,in which the over-wintering pathogen sources of bacteria carrying soil and dry diseased leaf had stronger pathogenicity;four different inoculated-pathogen methods（seed soaking,root drenching,needle inoculation and spraying） had a certain impact on pathogenicity of different over-wintering pathogen sources,in which the needle inoculation method had the strongest pathogenicity.Therefore,the results provide a scientific base for popularizing control measures,such as deep tillage,weed out diseased residues in filed,soil disinfection,reducing wounds caused by filed operation,etc..
出处
《湖南农业科学》
2010年第8期80-82,共3页
Hunan Agricultural Sciences
关键词
西瓜细菌性果斑病
越冬菌源
接菌
致病力
watermelon bacterial fruit blotch
over-wintering pathogen source
inoculated-pathogen
pathogenicity
