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首页> 外文期刊>International Journal of Agronomy >Glufosinate effects on nitrogen nutrition, growth, yield, and seed composition in glufosinate-resistant and glufosinate-sensitive soybean.
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Glufosinate effects on nitrogen nutrition, growth, yield, and seed composition in glufosinate-resistant and glufosinate-sensitive soybean.

机译：草铵膦对耐草铵膦和对草铵膦敏感的大豆的氮素营养，生长，产量和种子组成的影响。

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摘要

Glufosinate applied to glufosinate-resistant crops may drift and injure glufosinate-sensitive crops. A 2-yr field study examined glufosinate effects on plant injury, chlorophyll content, nodulation, nitrogenase activity, leaf nitrogen, yield, and seed composition in soybean. Glufosinate drift was simulated by application at 45 g/ha to glyphosate-resistant and conventional (glufosinate-sensitive) soybean at 3 weeks after planting (WAP). Glufosinate effects were also evaluated in glufosinate-resistant soybean at 450 g/ha applied twice at 3 and 6 WAP. In glufosinate-resistant soybean, chlorophyll, nitrogenase activity, root respiration, plant biomass, and yield were not affected; seed nitrogen and protein were increased; seed oil content decreased. In glufosinate-sensitive soybean, glufosinate caused 28-32% injury and decreased 35-42% chlorophyll content within 3d after treatment (DAT) but soybean completely recovered by 14 DAT. Glufosinate had no effect on plant biomass, nitrogenase activity, and root respiration in 2009 and inconsistent effects in 2010. In glufosinate-sensitive soybean, glufosinate had no effect on yield; increased leaf nitrogen, seed protein, and oleic acid; decreased oil content, linoleic, and linolenic acid. Glufosinate-sensitive soybean exposed to glufosinate drift may exhibit transient injury but soybean could recover without a yield penalty. Glufosinate altered seed composition in all soybean types.
机译：耐草铵膦的农作物使用草铵膦可能会漂移并伤害对草铵膦敏感的作物。一项为期2年的田间研究检查了草铵膦对大豆中植物伤害，叶绿素含量，结瘤，固氮酶活性，叶氮，产量和种子组成的影响。种植后三周（WAP），以45 g / ha的浓度对草甘膦抗性和常规（对草甘膦敏感）的常规大豆施用草甘膦漂移进行了模拟。还以3和6次WAP两次在抗草铵膦的大豆中以450 g / ha的剂量评估了草铵膦的作用。在抗草铵膦的大豆中，叶绿素，固氮酶活性，根系呼吸，植物生物量和产量均不受影响。种子氮和蛋白质增加;种子油含量下降。在对草铵膦敏感的大豆中，草铵膦在处理（DAT）后3天之内造成28-32％的伤害并降低35-42％的叶绿素含量，但大豆在14 DAT时完全恢复。草铵膦在2009年对植物生物量，固氮酶活性和根系呼吸没有影响，而在2010年则没有影响。在草铵膦敏感的大豆中，草铵膦对产量没有影响。增加叶氮，种子蛋白和油酸;降低油含量，亚油酸和亚麻酸。暴露于草铵膦漂移的对草铵膦敏感的大豆可能表现出短暂的伤害，但大豆可以恢复而没有产量损失。草铵膦改变了所有大豆类型的种子组成。

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