摘要
为明确东北地区不同稻田区稻稗对五氟磺草胺、二氯喹啉酸和唑酰草胺的抗性情况,采用整株生物测定法研究东北地区32个稻稗种群对3种除草剂的多抗性情况及抗性水平。结果表明在32个稻稗种群中,3个种群(HLJ4、LN1、LN24)对3种除草剂产生了多抗性,其中HLJ4种群对二氯喹啉酸产生了高水平的抗药性,LN1和LN24种群对二氯喹啉酸产生了极高水平的抗药性,抗性指数分别为65.85、145.21和269.60;HLJ4和LN1种群对唑酰草胺产生了高水平的抗药性,抗性指数分别为10.64和23.59,LN24对唑酰草胺产生了中等水平的抗药性,抗性指数为9.86。HLJ4、LN24、LN1分别对五氟磺草胺产生了低、中、高水平的抗药性,抗性指数分别为4.80、8.66、25.67。
The response of 32 Echinochloa oryzicola(Vasing.)Vasing populations from Northeast China to penoxsulam,metamifop and quinclorac was determined in whole-plant bioassays.Three of 32 populations had multiple resistance to the three herbicides.HLJ4 was highly resistant to quinclorac whereas LN1 and LN24 were very highly resistant,with resistance indexes(RI)of 65.8,145.2 and 269.6,respectively.HLJ4 and LN1 populations were also relatively highly resistant to metamifop(RI of 10.6 and 23.6,respectively);LN24 had intermediate resistance(RI=9.9).HLJ4,LN24,and LN1 expressed low to high resistance levels to penoxsulam with RIs of 4.8,8.7 and 25.7,respectively.
作者
王维静
纪明山
杜颖
孙中华
郭红霞
李京
WANG Wei-jing;JI Ming-shan;DU Ying;SUN zhong-hua;GUO Hong-xia;LI Jing(College of Plant Protection,Shenyang Agricultural University,Shenyang 110866,China)
出处
《杂草学报》
2019年第2期21-27,共7页
Journal of Weed Science
基金
国家重点研发计划(编号:2018YFD0200202-3)
关键词
稻稗
多抗性
五氟磺草胺
二氯喹啉酸
唑酰草胺
Echinochloa oryzicola
multiple resistance
penoxsulam
metamifop
quinclorac
