海南省香蕉园牛筋草对百草枯抗药性水平的初步研究  

Primary Research on Resistance Level of the Weed Eleusine indica to Paraquat in Banana Plantations of Hainan Province

作　　者：李晓霞[1] 沈奕德[1] 黄乔乔[1] 王秀[2] 刘延[1] 范志伟[1] LI Xiao-xia;SHEN Yi-de;HUANG Qiao-qiao;WANG Xiu;LIU Yan;FAN Zhi-wei(Environment and Plant Protection Institute,Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Integrated Pest Management on Tropical Crops,Ministry of Agriculture of the People s Republic of China/Danzhou Scientific Observing and Experimental Station of Agro-Environment,Ministry of Agriculture of the People s Republic of China/Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests,Haikou 571101,China;Beijing Research Center for Information Technology in Agriculture,Beijing 100097,China)

机构地区：[1]中国热带农业科学院环境与植物保护研究所/农业部热带作物有害生物综合治理重点实验室/农业部儋州农业环境科学观测实验站/海南省热带农业有害生物监测与控制重点实验室,海南海口571101 [2]北京农业信息技术研究中心,北京100097

出　　处：《杂草学报》2018年第2期16-18,共3页Journal of Weed Science

基　　金：公益性行业(农业)科研专项经费(编号:201303031);中央级公益性科研院所基本科研业务费(编号:2016hzs1J019)

摘　　要：为明确海南省香蕉园杂草牛筋草的抗药性水平,利用温室生物测定法研究海南省儋州、白沙、昌江、东方、陵水、三亚、琼中等地区牛筋草种群对百草枯的抗药性水平。结果表明,采集的7个牛筋草种群对百草枯表现出不同程度的抗药性,其中采自陵水地区的牛筋草种群抗药性水平最高,ED_(50)为4 495. 702 2 g a. i./hm^2,相对抗药性倍数达50. 81倍,而昌江、琼中2个地区的牛筋草种群则表现出较低的抗药性,相对抗药性倍数在2～4倍之间。Greenhouse bioassays were conducted to determine the resistance level to paraquat of the major weed,Eleusine indica in banana plantations of Hainan Province,particularly in the areas of Danzhou,Baisha,Changjiang,Dongfang,Lingshui,Sanya,and Qiongzhong.Seven populations of E.indica had different degrees of resistance to paraquat,among which those collected in Lingshui were the most resistant;the ED 50 value was 4 495.70 g a.i./hm 2,the relative herbicide resistance ratio was 50.81,while the Eleusine indica populations collected from Changjiang and Qiongzhong showed a low herbicide resistance,and the relative herbicide resistance ratio was between 2~4.

关 键 词：香蕉园 杂草种类 牛筋草 抗性水平 

分 类 号：S451[农业科学—植物保护]