| 2008年我国主要麦区白粉菌群体对三唑酮和喹氧灵的敏感性监测 |
| |
| 引用本文： | 杨鹏,张荣,段霞瑜,周益林.2008年我国主要麦区白粉菌群体对三唑酮和喹氧灵的敏感性监测[J].植物病理学报,2010,40(4):404-410. |
| |
| 作者姓名： | 杨鹏 张荣 段霞瑜 周益林 |
| |
| 作者单位： | 1 西北农林科技大学植物保护学院, 杨凌 712100;2 中国农业科学院植物保护研究所, 植物病虫害生物学国家重点实验室, 北京 100193 |
| |
| 基金项目： | 公益性行业科研专项，国家科技支撑计划项目 |
| |
| 摘 要： | 采用拌种离体叶段法对我国6个省(市)分离的小麦白粉菌108个和104个单孢堆菌株分别对三唑酮和喹氧灵的敏感性进行了测定,并对两者之间的交互抗性进行分析。结果表明,供试菌株对三唑酮的平均EC50为94.34mg/L,平均抗性水平达45.14倍,有97.25%菌株产生了抗性,其中高抗菌株(抗性水平40)占35.19%,中抗菌株占55.56%。河北菌株的抗性水平明显高于其他五省。小麦白粉病菌群体对喹氧灵的敏感基线为0.0059mg/L,且与三唑酮无交互抗性。此研究信息可为小麦白粉病抗药性持续治理措施的制定以及杀菌剂生产和使用策略提供依据。
|
| 关 键 词： | 小麦白粉菌 三唑酮 喹氧灵 抗药性 敏感基线 |
Sensitivity of Blumeria graminis f.sp.tritici isolates to triadimefon and quinoxyfen in China in 2008 and its cross-resistance between triadimefon and quinoxyfen |
| |
| YANG Peng,ZHANG Rong,DUAN Xia-yu,ZHOU Yi-lin.Sensitivity of Blumeria graminis f.sp.tritici isolates to triadimefon and quinoxyfen in China in 2008 and its cross-resistance between triadimefon and quinoxyfen[J].Acta Phytopathologica Sinica,2010,40(4):404-410. |
| |
| Authors: | YANG Peng ZHANG Rong DUAN Xia-yu ZHOU Yi-lin |
| |
| Institution: | 1 College of Plant Protection, Northwest Agricuture and Fo-restry University, Yangling 712100, China;2 State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, The Chinese Academy of Agricultural Science, Beijing 100193, China |
| |
| Abstract: | The isolates of Blumeria graminis f. sp. tritici were isolated from 6 provinces or cities, and the sensitivity of 108 isolates to triadimefon and 104 isolates to quinoxyfen was tested with seed treatment and detached leaf segment methods. The results showed that the mean EC50 of isolates to triadimefon was 94.34 mg/L, and the mean resistance factor (Rf)was 45.14. The frequency of resistant isolates to triadimefon reached 97.25%. The resistance of B. graminis f. sp. tritici from Hebei to triadimefon was higher than that from other five regions. The average EC50 of the base-line B. graminis f. sp. tritici to quinoxyfen was 0.005 9 mg/L. Results of the correlation analysis demonstrated that there was no cross-resistance between tria-dimefon and quinoxyfen in B. graminis f. sp. tritici. These study provided valuable information for management of fungicide resistant B. graminis f. sp. tritici. |
| |
| Keywords: | Blumeria graminis f sp tritici triadimefon quinoxyfen fungicide resistance sensitive base-line |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《植物病理学报》浏览原始摘要信息 |
| 点击此处可从《植物病理学报》下载免费的PDF全文 |
|
