农药学学报2024，Vol.26Issue(3)：526-532,7.DOI:10.16801/j.issn.1008-7303.2024.0021
大豆种子携带病原菌对8种杀菌剂的敏感性
Sensitivity of soybean seed borne pathogens to eight fungicides
摘要
Abstract
In order to screen fungicides with good inhibitory effect on pathogens carried by soybean seeds in Inner Mongolia,the sensitivity of four genera isolated from the interior of soybean seeds and eight genera isolated from the surface of soybean seeds to fungicides with different modes of action was measured by mycelium growth rate method.The results showed that the three 14α-demethylase inhibitors prochloraz,tebuconazole,and mefentrifluconazole had a good inhibitory effect on all tested strains,among which mefentrifluconazole had the strongest inhibitory efficacy with the EC50 values against all tested pathogens less than 3.73 μg/mL.The succinic dehydrogenase inhibitor fluopyram had a good inhibitory effect on some pathogens.The mitochondrial complex III inhibitor azoxystrobin showed a good inhibitory effect on most pathogens except Alternaria and Boeremia,with the EC50 values ranging from 0.01 to 5.53 μg/mL.The EC50 values of uncoupling inhibitor fluazinam against other pathogens were all less than 3.39 μg/mL,except for Plectosphaella isolated from the seed interior.Carbendazim and fludioxonil had good inhibitory effects on most pathogens but had poor inhibitory effects on Alternaria and Plectosphaella.In summary,it is recommended to use the compound of 14α-demethylation inhibitors such as prochloraz,tebuconazole,mefentrifluconazole,and other agents for seed treatment to control the diseases caused by soybean seed-borne pathogens.关键词
大豆/种子带菌/化学防治/杀菌剂/敏感性/种传病害Key words
soybean/seed borne fungi/chemical control/fungicide/sensitivity/seed-borne disease分类
农业科技引用本文复制引用
张灿,刘詹云,常郑洁,徐辰僖,王雪洋,黄中乔,刘西莉..大豆种子携带病原菌对8种杀菌剂的敏感性[J].农药学学报,2024,26(3):526-532,7.基金项目
国家重点研发计划(2023YFD1401000). Supported by National Key R&D Program of China(No.2023YFD1401000). （2023YFD1401000）
