摘要
采用温室盆栽法,进行嘧啶肟草醚类共36个化合物对稗草的室内活性初筛及对稗草的室内毒力测试,以明确嘧啶肟草醚类化合物对稗草的活性。结果表明,在50 mg·L^-1的浓度处理下,嘧啶肟草醚类共36个化合物对稗草的鲜质量抑制率在87.31%~93.18%之间;精密毒力测定结果表明,36个化合物对稗草的IC 50在(1.123 7~8.734 1)mg·L^-1之间。嘧啶肟草醚类化合物对稗草表现出良好的生物活性,具有广阔的应用前景,可进一步开发出除草剂品种。
Echinochloa crusgalli (L.) Beauv was pot cultured in greenhouse and treated with 36 novel pyribenzoxim compounds. The activities and herbicidal activities of these 36 compounds against E.crusgalli were determined. The result showed that the 36 compounds at a concentration of 50 mg·L^ -1 had fresh weight-based inhibition rates of 87.31%~93.18% against E.crusgalli (L.) Beauv. . The toxicity tests showed that the IC 50 values for the 36 compounds against E.crusgalli (L.) Beauv. were ranged from 1.123 7 mg·L^ -1 to 8.734 1 mg·L^ -1 . These compounds had good herbicidal activity against E.crusgalli (L.) Beauv., have broad application prospects and can be further developed.
作者
向兰香
张波
李俊凯
覃兆海
杜晓英
XIANG Lanxiang;ZHANG Bo;LI Junkai;QIN Zhaohai;DU Xiaoying(College of Agriculture,Yangtze University,Jingzhou,Hebei 434025,China;College of Science,China Agricultural University,Beijing 100193,China)
出处
《热带生物学报》
2019年第3期276-277,共2页
Journal of Tropical Biology
关键词
嘧啶肟草醚类化合物
稗草
室内活性
毒力测定
Pyribenzoxim compounds
Echinochloa crusgalli(L.)Beauv.
indoor activity
toxicity test
