2种常见番茄致病真菌对几种杀菌剂的敏感性测定.pdfVIP

中国农学通报 2013,29(16):96-99 Chinese Agricultural Science Bulletin 2 种常见番茄致病真菌对几种杀菌剂的敏感性测定 1,2 2 2 2 1 2 奉代力 ，王 强 ，陈丽萍 ，郑纪慈 ，仇厚援 ，吴莉宇 1 2 （海南大学食品学院，海口570228；浙江省农业科学院农产品质量标准研究所，杭州310021） 摘 要：旨在筛选能同时有效抑制番茄早疫病菌和番茄晚疫病菌生长的杀菌剂。采用生长速率法测定了 几种杀菌剂对供试病原菌的EC50 值，并通过EC50 值比较病原菌对供试杀菌剂的敏感性。结果表明：番茄 早疫病菌对25%啶菌噁唑EC、25%咪鲜胺EC表现敏感，对50%腐霉利WP、0.3%丁子香酚SL 和10% 多 抗霉素B WP 表现中抗；番茄晚疫病菌仅对25%啶菌噁唑EC 表现敏感，对25%咪鲜胺EC、0.3%丁子香 酚SL 和10% 多抗霉素B WP表现中抗，对50%腐霉利WP 则表现高抗。2 种病原菌对2×108 cfu/g 绿色木 霉菌WP 和8×109 8 cfu/mL 枯草芽孢杆菌AS 较为敏感，EC50 值均小于1×10 cfu/L。化学杀菌剂中啶菌噁 唑，生物源杀菌剂中丁子香酚、绿色木霉菌和枯草芽孢杆菌对2 种番茄致病真菌的抑菌效果较好的药 剂，用量少且毒性低，可以在生产中推广使用。 关键词：番茄早疫病菌；番茄晚疫病菌；杀菌剂；敏感性 中图分类号：S482.2，S436.41 文献标志码：A 论文编号：2012-3612 Sensitivity Detection of Two Common Tomatoes Pathogenic Fungi to Several Fungicides Feng Daili1,2 2 2 2 1 2 , Wang Qiang , Chen Liping , Zheng Jici , Qiu Houyuan , Wu Liyu 1 ( CollegeofFoodScience,HainanUniversity, Haikou 570228; 2InstituteofQualityStandardsforAgriculturalProducts,ZhejiangAcademyofAgriculturalSciences, Hangzhou 310021) Abstract: The aim was to screen effective fungicides to simultaneously control Alternaria solani and Phytophthora infestans . EC50 values of several fungicides were determined by method of mycelial growth speed, then through the EC50 values,sensitivities of tested fungi to several fungicides were contrasted. The result