摘要
为了选择可有效防治番茄早疫病菌的杀菌剂,本文采用组织分离法从罹病叶片分离出病原菌,并通过FAO推荐的菌落直径法测定其对6种杀菌剂的敏感性。结果表明:番茄早疫病对腐霉利最敏感,其平均EC50为1.24μg.mL-1,对杀毒矾、代森锰锌中度敏感,其平均EC50分别为32.64μg.mL-1、56.38μg.mL-1。对百菌清、甲霜灵、异菌脲低度敏感,其平均EC50分别为263.68μg.mL-1、443.33μg.mL-1、605.44μg.mL-1。由此可见,腐霉利对番茄早疫病的防治在试验药剂中效果最好。
Eight isolates were obtained from tomato diseased leaves and their sensitivities to six fungicides were surveyed. The result showed that they were most sensitive to procymidone （EC50 1.24 μg·mL^-1 ）, moderately sensitive to oxadixyl and mancozeb with an EC50 value of 32. 64 μg·mL^-1 , 56. 38 μg·mL^-1 separately. They were relatively less sensitive to chlorthalonil, metalaxyl, iprodione with an ECs0 value of 263.68 μg·mL^-1 , 443. 33 μg·mL^-1 , 605.44 μg·mL^-1 . The result showed that procymidone was very effective preventing Alternaria solani Sorauer in these fungicides.
出处
《山西农业大学学报（自然科学版）》
CAS
2006年第1期36-37,40,共3页
Journal of Shanxi Agricultural University(Natural Science Edition)
基金
山西省科技攻关项目(31011-4
051045)
山西省留学基金资助项目(200441)
山西省自然科学基金资助项目(20021088)
关键词
番茄早疫病菌
杀菌剂
敏感性
有效中浓度(EC50)
Alternaria solani Sorauer
Fungicide
Sensitivity
Median effective concentration （EC50）
