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.
作者
李晓霞
沈奕德
黄乔乔
王秀
刘延
范志伟
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)
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)
关键词
香蕉园
杂草种类
牛筋草
抗性水平
banana plantation
weed species
Eleusine indica
resistance level
作者简介
李晓霞(1983—),女,云南大理人,硕士,助理研究员,主要从事热带农林杂草生物学、生态学与综合监控技术研究。Tel:(0898)23300557;E-mail:lixiaoxiayn@163.com;通信作者:范志伟,博士,研究员,主要从事入侵植物与杂草生物学、生态学与综合监控技术研究。Tel:(0898)6669246;E-mail:fanweed@163.com。
