| 李 丹, 李香菊, 于惠林, 崔海兰*.我国部分地区水稻田鳢肠对吡嘧磺隆的抗性测定[J].植物保护,2017,43(2):196-201. |
| 我国部分地区水稻田鳢肠对吡嘧磺隆的抗性测定 |
| Detection of resistance of Eclipta prostrata L. to pyrazosulfuron-ethyl in some provinces of China |
| 投稿时间：2016-03-21 修订日期：2016-07-13 |
| DOI： |
| 中文关键词: 鳢肠 吡嘧磺隆 抗药性 |
| 英文关键词:Eclipta prostrata pyrazosulfuron-ethyl resistance |
| 基金项目:公益性行业（农业）科研专项（201303031） |
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| 中文摘要: |
| 鳢肠Eclipta prostrata L.是我国水稻产区的主要恶性阔叶杂草之一, 为了明确鳢肠对吡嘧磺隆的抗性发生情况, 采用生物测定法检测了2011-2013年从山东省、湖北省和江苏省水稻田采集的28个鳢肠种群对吡嘧磺隆的抗性。结果表明, 从山东省采集的7个种群、湖北省的17个种群和江苏省的3个种群均能被有效剂量30 g/hm2的吡嘧磺隆控制, 表现为敏感；江苏省苏州市吴中区鳢肠种群LC12-25在30 g/hm2剂量下仍存活, 进一步以江苏省敏感种群LC12-24为对照, 对江苏省鳢肠种群LC12-25进行抗性水平测定。敏感种群LC12-24的GR50为0.25 g/hm2, 抗性种群LC12-25的GR50为16.66 g/hm2, 其抗药性指数(RI)达66.64, 表明LC12-25种群对吡嘧磺隆产生了较高水平抗性。 |
| 英文摘要: |
| Eclipta prostrata L. is one of the main malignant broadleaf weeds in paddy fields in China. In order to detect the resistance of E. prostrata to pyrazosulfuron-ethyl and its distribution, the seeds of 28 E. prostrata populations were collected from the main occurrence areas in Shandong, Hubei and Jiangsu rice fields from 2011 to 2013, and the resistance of these 28 populations to pyrazosulfuron-ethyl were detected. The results showed that 7 populations from Shandong, 17 from Hubei and 3 from Jiangsu Province, were susceptible to pyrazosulfuron-ethyl. The population LC12-25 collected from Jiangsu Province could survive after application with 30 g/hm2 pyrazosulfuron-ethyl, showing resistance to it. Taking sensitive population LC12-24 as the control, whole-plant dose-response experiments demonstrated that the GR50 value of population LC12-25 from Jiangsu Province was 16.66 g/hm2, with the resistant index of 66.64, while the GR50 value of the sensitive population LC12-24 was 0.25 g/hm2, The above results indicated that the population LC12-25 had higher level of resistance to pyrazosulfuron-ethyl. |
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