温度和pH值对杜鹃褐斑病菌丝生长的影响  

Effect of Temperature and pH on the Mycelial Growth of Rhododendron Leaf Spot

作　　者：刘春红[1] 徐小莲[1] 蔡平[1] 张国彪[2] 徐建方[2] 孙振军[2] 查国贤[2] 

机构地区：[1]苏州大学城市科学学院,江苏苏州215123 [2]苏州市植物保护检查站,江苏苏州215006

出　　处：《北方园艺》2009年第6期108-110,共3页Northern Horticulture

基　　金：苏州市科学技术局科技资助项目(ZN0310);江苏省农业三项工程资助项目[SX(2004)44]

摘　　要：杜鹃褐斑病为杜鹃花上发生较重的病害,常造成大量落叶,影响其观赏价值和生长存活。通过研究温度和pH值对该病原菌的影响,发现该菌适合在较高温度的环境下生长,最适生长温度为28℃;菌丝体对pH值反应不太敏感,在pH 3～12条件下皆可生长,但最适pH值为9。Rhododendron leaf spot is a heavy disease, often causes azalea to drop leaves largely, and influences its growth and ornamental value. Through the study of temperature and pH effect on the pathogen Cercospra rhododendri Ferraris, it is found to be fit for high temperature environment, the optimal growth temperature was 28 ℃ ; the pathogen was not sensitive to pH values, can grow under pH 3-12, and the optimal pH was 9.

关 键 词：杜鹃花 褐斑病 生物学特性 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治]