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首页> 外文期刊>Canadian Journal of Plant Science >Response of adzuki bean to pre-emergence herbicides
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Response of adzuki bean to pre-emergence herbicides

机译：小豆对出苗前除草剂的反应

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Limited herbicide options are available to adzuki bean growers in southwestern Ontario. Six field trials were conducted in Ontario during 2003 and 2004 to evaluate the tolerance of adzuki bean to dimethenamid (1250 and 2500 g a.i. ha-1), S-metolachlor(1600 and 3200 g a.i. ha-1), clomazone (1000 and 2000 g a.i. ha-1), and imazethapyr (75 and 150 g a.i. ha-1) applied pre-emergence. Dimethenamid caused up to 37% visual injury and reduced plant height, shoot dry weight and yield 27, 59 and 52%, respectively. Seed maturity was also delayed by dimethenamid at 2500 g ha-1. S-metolachlor caused up to 34% visual inj ury and reduced plant height, shoot dry weight and yield 27, 48 and 48%, respectively. Clomazone caused 53% visual injury and reduced plant height, shoot dry weight and yield 47, 84 and 78%, respectively. Imazethapyr caused up to 6% visual injury; however, this injury was transient with no adverse effect on plant height, shoot dry weight, seed moisture content and yield of adzuki bean. Based onthese results, dimethenamid, S-metolachlor and clomazone applied pre-emergence (PRE) do not have an adequate margin of crop safety for use in adzuki bean at the doses evaluated. However, imazethapyr applied PRE has an adequate margin of crop safety forweed management in adzuki bean production in Ontario at the doses evaluated.
机译：安大略西南部的小豆种植者可以选择的除草剂种类有限。在2003年和2004年期间，在安大略省进行了六次田间试验，以评估小豆对敌百虫胺（1250和2500 g ai ha-1），异丙甲草胺（1600和3200 g ai ha-1），广灭灵（1000和2000）的耐受性g ai ha-1）和咪唑乙烟（75和150 g ai ha-1）在出苗前使用。二甲亚胺导致多达37％的视觉伤害并降低了株高，茎干重量，分别占27％，59％和52％。二甲亚胺在2500 g ha-1下也延迟了种子成熟。异丙甲草胺造成高达34％的视觉伤害，并降低了株高，枝干重量，收率分别为27％，48％和48％。 Clomazone造成53％的视觉伤害，并降低了株高，枝干重量和产量，分别为47、84和78％。依马西吡造成多达6％的视力伤害;然而，这种伤害是短暂的，对株高，苗干重，种子含水量和红豆产量没有不利影响。根据这些结果，在评估的剂量下，丁二烯酰胺，S-异丙甲草胺和广灭灵施用出芽前（PRE）的作物安全性不足以用于小豆。但是，咪唑乙草胺在评估的剂量下在安大略省的小红豆生产中使用的PRE农药具有足够的作物安全性，可用于杂草管理。

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