摘要
[目的]探讨小麦条锈病对粉锈宁杀菌剂的敏感性及抗药性。[方法]采用拌种离体叶段法测定了四川和云南两省的84个条锈菌株对粉锈宁杀菌剂的抗药性。[结果]供试菌株中属于敏感菌株占2.40%,耐药菌株占61.90%;供试菌株的平均EC50值为4.07 mg/L,平均抗性水平为21.43倍,平均抗性频率在10~50倍的菌株占52.35%,云南菌株的平均抗性水平高于四川菌株。[结论]为小麦条锈病的有效防治提供了理论依据。
[Objective]The sensitivity and resistance of wheat stripe rust to triadimefon were studied.[Method]The resistance of 84 stripe rust strains collected from Sichuan and Yunnan was detected by seed-dressing in vitro leave fragment method.[Result]The strains belonging to susceptible strains accounted for 2.40%,while resistant strains accounted for 61.90%.The average EC50 value of tested strains was 4.07 mg/L;the average resistance level was 21.43 times;the strains with average resistance rate of 10-50 times accounted for 52.35%.The average resistance level of strains from Yunnan was higher than that of strains from Sichuan.[Conclusion]The research provides theoretical basis for the effective control of wheat stripe rust.
出处
《安徽农业科学》
CAS
北大核心
2011年第30期18608-18609,共2页
Journal of Anhui Agricultural Sciences
关键词
小麦条锈菌
粉锈宁
抗药性
Wheat stripe rust
Triadimefon
Resistance