Increased foliar activity of clodinafop‐propargyl and/or tribenuron‐methyl by surfactants and their synergistic action on wild oat (Avena ludoviciana) and wild mustard (Sinapis arvensis)
Increased foliar activity of clodinafop‐propargyl and/or tribenuron‐methyl by surfactants and their synergistic action on wild oat (Avena ludoviciana) and wild mustard (Sinapis arvensis)
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DOI：
10.1111/j.1445-6664.2009.00353.x
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发表时间：
2009-12
影响因子：
1.4
通讯作者：
A. Aliverdi;M. H. Mohassel;E. Zand;M. Mahallati
中科院分区：
文献类型：
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作者：
A. Aliverdi;M. H. Mohassel;E. Zand;M. Mahallati
表面活性剂可以提高出苗后除草剂的药效，减少杂草控制所需的除草剂用量。表面活性剂对除草剂药效的影响是复杂的，取决于植物、表面活性剂和除草剂三者之间的相互作用。在温室条件下，研究了不同表面活性剂对氯地那福-丙炔和/或三苯腈-甲基对野燕麦和野芥菜药效的影响。测定了表面活性剂和表面活性剂+除草剂水溶液的表面张力。单独使用Citogate （Citogate + Frigate）水溶液和本研究中使用的除草剂时，表面张力值明显降低。柠檬酸盐表面活性剂对氯硝福-丙炔和/或三苯腈-甲基的药效增强效果最大，且效果具有种类依赖性。在表面活性剂存在的情况下，氯硝福-丙炔和/或甲基三苯腈对野生燕麦的防治效果高于对野生芥菜的防治效果。所试除草剂的叶面活性随表面活性剂浓度的增加而升高。氯硝福-丙炔-甲基三苯腈混合液对野燕麦和野芥菜有协同防治效果。对野生芥菜的防治协同效应大于对野生燕麦的防治协同效应。
Surfactants can improve postemergence herbicide efficacy and reduce the amount of herbicide required to obtain weed control. The effect of surfactants on the efficacy of herbicides is complicated and depends on the interaction among the plant, surfactant, and herbicide. The effects of surfactants on the efficacy of clodinafop-propargyl and/or tribenuron-methyl on wild oat (Avena ludoviciana) and wild mustard (Sinapis arvensis) under greenhouse conditions were investigated. In addition, the surface tension of aqueous solutions of the surfactants and surfactants + herbicides was determined. Significantly lower surface tension values were obtained with the aqueous solutions of citofrigate (Citogate plus Frigate) alone and with the herbicides used in this study. The citofrigate surfactant lead to the greatest enhancement of clodinafop-propargyl and/or tribenuron-methyl efficacy and the effect was species-dependent. The efficacy of clodinafop-propargyl and/or tribenuron-methyl in the presence of surfactants in controlling wild oat was higher than for wild mustard. The foliar activity of the tested herbicides rose with increasing surfactant concentrations. The tank mixture of clodinafop-propargyl and tribenuron-methyl showed a synergistic effect in controlling wild oat and wild mustard. The synergistic effect in controlling wild mustard was greater than for wild oat.