Herbicide Cross-Resistance in Slender Foxtail (Alopecurus myosuroides)
Herbicide Cross-Resistance in Slender Foxtail (Alopecurus myosuroides)
复制标题
细狐尾草 (Alopecurus myosuroides) 的除草剂交叉抗性
DOI：
10.1017/s0043174500051365
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发表时间：
1990
期刊：
影响因子：
2.5
通讯作者：
S. Moss
中科院分区：
文献类型：
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作者：
S. Moss
用全植物喷雾方法研究了4个英国细尾蝇种群对绿麦隆、二甲戊灵和三氯杀螨甲酯的抗性。两个种群对所有三种除草剂都表现出交叉抗性，第三个种群只对绿麦隆表现出抗性。抗药性虽然不是绝对的，但在推荐的田间剂量下，足以导致除草剂性能的大幅下降。在培养皿中测定了6种二硝基苯胺类除草剂对新梢发育的影响，并对抗性种群(Peldon)和敏感种群(Rothamsted)进行了抗性鉴定。不同除草剂对Peldon种群的抗性程度差异较大，对二甲戊灵的抗性最强，而对乙氟乐灵、异丙灵和氟乐灵的敏感性与Rothamsted标准相似。对布曲林和谷氨灵的差异反应小于对二甲双灵。盆栽实验证实，不同种群对二甲戊灵和氟乐灵的反应存在很大差异。
The resistance of four populations of slender foxtail from England to chlorotoluron, pendimethalin, and the methyl ester of diclofop was studied in whole-plant spray assays. Two populations showed cross-resistance to all three herbicides while a third showed resistance to chlorotoluron only. Resistance, although not absolute, was sufficient to cause substantial reductions in herbicide performance at recommended field doses. Resistant (Peldon) and susceptible (Rothamsted) populations also were assessed for resistance to six dinitroaniline herbicides in a petri dish test in which the effects on shoot development were measured. The degree of resistance of the Peldon population varied considerably among herbicides, with greatest resistance to pendimethalin, whereas sensitivity to ethalfluralin, isopropalin, and trifluralin was similar to that of the Rothamsted standard. Differential response to butralin and oryzalin was smaller than to pendimethalin. The large difference between populations in their response to pendimethalin and trifluralin was confirmed in a pot experiment.