野慈姑对ALS抑制剂的交互抗药性  

Detecting the Cross Resistance of Sagittaria trifolia Populations to ALS-Inhibiting Herbicides

作　　者：李平生[1] 魏松红[1] 纪明山[1] 东琴 王海宁[1] 

机构地区：[1]沈阳农业大学植物保护学院,沈阳110866

出　　处：《农药》2015年第5期366-368,共3页Agrochemicals

基　　金：国家公益性行业(农业)科研专项(201303031);辽宁水稻产业体系专项资金[辽农科(2013)271号]

摘　　要：[目的]测定野慈姑对磺酰脲类除草剂及其他ALS抑制剂(三唑嘧啶类和嘧啶硫代苯甲酸酯类)的交互抗药性。[方法]通过剂量反应试验测定营口(R1)和鞍山(R2)2个种群对5种ALS抑制剂抗性水平。[结果]种群R2对磺酰脲类除草剂吡嘧磺隆和乙氧磺隆,嘧啶硫代苯甲酸酯类除草剂双草醚产生了交互抗药性;而对三唑嘧啶类除草剂五氟磺草胺和嘧啶硫代苯甲酸酯类除草剂嘧啶肟草醚比较敏感;相比之下种群R1仅对磺酰脲类除草剂吡嘧磺隆和乙氧磺隆产生交互抗药性。[结论]明确了2个野慈姑种群对5种ALS抑制剂的交互抗药性,为抗ALS类杂草的治理提供理论依据。[Aims] The study aims to determine the cross resistance of Sagittaria trifolia to SU herbicides as well as other families of ALS-inhibiting herbicides（TP and PTB）. [Methods] The resistance of two S. trifolia populations from Yingkou（R1） and Anshan（R2） to 5 ALS-inhibiting herbicides were detected by dose-response experiments.[Results] R2 exhibited cross resistance to pyrazosulfuron-ethyl and ethoxysulfuron（SU）, bispyribac-sodium（PTB）, but displayed more sensitivity to penoxsulam（TP） and pyribenzoxim（PTB）. By contrast, R1 only showed cross resistance to pyrazosulfuron-ethyl and ethoxysulfuron（SU）. [Conclusions] Detecting the cross resistance of two S. trifolia populations to 5 ALS-inhibiting herbicides can provide a basis for the management the ALS-inhibiting herbicides resistant weeds.

关 键 词：野慈姑 乙酰乳酸合成酶抑制剂 交互抗药性 

分 类 号：S481.4[农业科学—农药学]