| 新化合物ZJ10361的除草活性研究 |
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投稿时间：2017-03-20
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| 引用本文：徐小燕,许天明,彭伟立,等.新化合物ZJ10361的除草活性研究[J].农药学学报,2017,19(4):428-433. |
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| 基金项目:浙江省科技计划项目（2016F10036） |
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| 中文摘要:为明确对羟苯基丙酮酸双氧化酶（HPPD）抑制剂类新化合物ZJ10361[1，3-二甲基-4-（2-甲基-4-甲砜基-3-（2-对甲苯氧基）乙氧基）苯甲酰基-1H-吡唑-5-基碳酸乙酯]在玉米田的开发应用潜力，对该化合物的除草活性、安全性、选择性、杀草谱和田间药效进行了研究。室内生物测定结果表明，ZJ10361在有效剂量150 g/hm2下对玉米安全性好，而对其他5种供试作物均有不同程度药害；对不同玉米品种之间的安全性有一定差异，其中对糯玉米科糯986安全性最好，其次为杂交玉米掖单13，甜玉米华珍最为敏感。该化合物在目标作物玉米Zea mays与反枝苋Amaranthus retroflexus、鳢肠Eclipta prostrata之间的选择性系数为4.0~4.5，具有较好的选择性；对阔叶杂草的除草活性较高，杀草谱较广，但对禾本科和莎草科杂草除草活性一般。田间试验结果显示，ZJ10361在有效剂量225 g/hm2下对供试玉米安全性好，对玉米田杂草总草防效为86.9%，与对照药剂硝磺草酮有效剂量150 g/hm2处理相比无显著性差异。该化合物用于玉米田防除阔叶杂草具有一定的开发潜力。 |
| 中文关键词:HPPD抑制剂 ZJ10361 玉米田 除草活性 作物安全性 |
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| Study on herbicidal activity of innovative compound ZJ10361 |
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| Abstract:In order to investigate the potential application value of a novel compound ZJ10361 [1,3-dimethyl-4-(2-methyl-4-methylsulfonyl-3-(2-p-tolyloxy)ethoxy)benzoyl-1H-pyrazol-5-yl ethyl carbonate], the herbicidal activity, safety, selectivity, spectrum of weed control and field trial were studied. The result of greenhouse tests showed that ZJ10361 was safe to maize at the dosage of 150 g/hm2. However, there were some hazard to other crops. There was different safety in three maize varieties, the safety to waxy corn(Kenuo 986) was highest, that to hybrid corn(Yedan13) was the second highest, and that to sweet corn(Huazhen) is the lowest. The selectivity coefficient of ZJ10361 between maize(Zea mays) and Amaranthus retroflexus and Eclipta prostrata was 4.0-4.5, which showed that the compound had good selectivity. ZJ10361 had good herbicidal activity to broadleaf weed, and it’s weeding spectrum was wider. However, it was less effective to grassy weeds and sedges. The field test results showed that at the dosage of 300 g/hm2, the compound is safe, and the total weeds controlling efficacy was 86.9%. The weed controlling was roughly equivalent to mesotrione at dosage of 225 g/hm2. The compound had potentials to be used as maize herbicide for controlling broadleaf weed. |
| Key words:HPPD inhibitor ZJ10361 maize herbicidal activity crop safety |
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