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期 刊 ：植物保护学报 2012年

关键词：稻；

Keywords:wild oat, fenoxaprop-P-ethyl, clodinafop-propargyl, bioassay, sensitivity,

摘 要 ：氟虱磺胺(SIOC-I-002)为氧杂氟烷基磺酰胺类新型稻飞虱杀虫剂,是由中国科学院上海有机化学研究所研究发现的具有自主知识产权(公开号为ZL200610027494.8)的杀虫活性先导,本课题组对此先导结构进行优化研究,已成功开发了卫生杀虫活性化合物SIOC-I-013。为了开发和合理使用SIOC-I-002,本研究系统测定了其对水稻褐飞虱的室内生物活性及田间防治效果。

Abstract:To investigate the differences in sensitivity of wild oat populations to fenoxaprop-P-ethyl and clodinafop-propargyl, 11 wild oat populations were collected from Henan, Hubei, Jiangsu provinces, and whole plant and seed bioassay were employed. The result of whole plant bioassay revealed that the sensitivities of the 11 populations to fenoxaprop-P-ethyl and clodinafop-propargyl were significantly different. Jinshuizha (JSZ) population was most sensitive to both herbicides, with GR₅₀ values (ai) of 2.46 and 3.65 g/hm², whereas Huixian (HX) population demonstrated lowest sensitivity to the herbicides, the GR₅₀ valued (ai) of 15.00 and 23.12 g/hm², the sensitivity of the other populations just laid in between JSZ and HX. Seed bioassay showed same tendency, while with more sensitivity.

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