草莓褐色轮斑病病原生物学研究及防治药剂的筛选  

Study on Biological Characteristics and Screening Fungicides of Phomopsis Leaf Blight of Strawberry

作　　者：贾晓辉[1] 傅俊范[1] 周如军[1] 严雪瑞[1] 

机构地区：[1]沈阳农业大学植物保护学院,辽宁沈阳110161

出　　处：《安徽农业科学》2005年第10期1849-1850,共2页Journal of Anhui Agricultural Sciences

摘　　要：草莓褐色轮斑病是辽宁省草莓生产上新发生的一种叶部病害。经鉴定,其病原菌为草莓褐色轮斑病菌(PhomopsisobscuranceElletEV.)。笔者系统研究了该病菌的生物学特性,并对防治药剂进行了初步筛选。结果表明:该菌菌丝生长的适宜温度范围为20～30℃,最适温度为25℃。分生孢子萌发最适温度为28℃,致死温度为50℃。全暗和全光照处理下的菌落生长情况好于12h光暗交替。病菌对碳源葡萄糖的利用率最高;对氮源甘氨酸的利用率最高。供试的6种药剂中,以20%叶病速康可湿性粉剂1000倍液对病菌的抑制作用最好。The leaf blight （Phomopsis obscurance） was a new disease of strawberry in Liaoning province and the incidence of the disease had been increasing, The study on biological characteristics and screening for fungicides of Phomopsis obscurance showed that the mycelia grew well at 20～30℃ and the best at 28℃,The optional temperature for conidial germination was 28 ℃, and conidial therinal death was 50℃.The colony diameters at 24 h light, 24 h dark or 12 h light and 12 h dark were significantly different after 5 days incubation, According to screening results, Yeblngsukang had the best inhibition on the myeelium growth of the pathogen among six tested fungicides.

关 键 词：草莓 褐色轮王证病 生物学 药剂筛选 

分 类 号：S668.4[农业科学—果树学]