| 几种除草剂的生物测定及复配效应研究 |
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| 引用本文： | 吴长兴,孙枫,王强,赵学平,戴芬,叶建辉.几种除草剂的生物测定及复配效应研究[J].浙江农业学报,2000,12(6):374-377. |
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| 作者姓名： | 吴长兴 孙枫 王强 赵学平 戴芬 叶建辉 |
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| 作者单位： | 浙江省农业科学院植物保护研究所，浙江 杭州 310021 |
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| 基金项目： | 浙江省"九"重大科技项目(961102242) |
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| 摘 要： | 用培养皿法和盆栽喷雾法分别测定了几种除草剂对稗草（Ｅｃｈｉｎｏｃｈｌｏａ ｃｒｕｓｇａｌｌｉ）的生物活性，并测定了２个复配组合的增效效应。试验表明，６种除草剂对稗草芽长抑制活性由高到低依次为：乙草胺、苯噻酰草胺、异丙甲草胺、千金、农美利、苄嘧磺隆；３种除草剂对稗草２叶和４叶期幼苗致死活性大小依次为：农美利、千金、苄嘧磺隆；苯噻酰草胺与苄嘧磺隆复配对稗草芽长抑制的相互作用为独立相加，千金与苄嘧磺降复配对稗草芽长抑制也为相加作用或稍有增效作用，但对稗草２叶期幼苗致死却有明显的拮抗作用。
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| 关 键 词： | 除草剂 生物测定 培养皿法 盆栽喷雾法 复配效应 |
| 文章编号： | 1004-1524(2000)06-0374-04 |
| 修稿时间： | 2000年8月8日 |
A study on bioassay of several herbicides and interaction of mixtures |
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| WU Chang-xing,SHUN Feng,WANG Qiang,ZHAO Xue-ping,DAI Fen,YE Jian-hui.A study on bioassay of several herbicides and interaction of mixtures[J].Acta Agriculturae Zhejiangensis,2000,12(6):374-377. |
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| Authors: | WU Chang-xing SHUN Feng WANG Qiang ZHAO Xue-ping DAI Fen YE Jian-hui |
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| Abstract: | Activities of several herbicides to bamyardgrass ( Echinochloa crusgalli ) were determined by dishdipping and pot-spraying methods, and interaction of mixtures was assessed. The result showed the inhibition of 6 herbicides to barnyardgrass bud is in the following order: acetochlor > mefenacet > metolachlor > cyhalofop > bispyribac-sodium > bensulfuron-methy, and the order for lethal activity to barnyardgrass at 2 leaf stage and 4 leaf stage is: bispyribac-sodium > cyhalofop > bensulfuron-methy. It also showed there is an addition in inhibiting weed bud in the mixture of mefenacet + bensulfuron-methy, and also addition or slight synergism in the mixture of cyhalofop + bensulfuron-methyl, but the mixture of cyhalofop + bensulfuron-methyl seems to be antagonic in killing weed plant. |
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| Keywords: | herbicide bioassay dish dipping method pot spraying method interaction of herbicide mixture |
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