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首页> 外文期刊>土壤圈（英文版） >Effects of Amino Acids Replacing Nitrate on Growth, Nitrate Accumulation, and Macroelement Concentrations in Pak-choi (Brassica chinensis L.)
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Effects of Amino Acids Replacing Nitrate on Growth, Nitrate Accumulation, and Macroelement Concentrations in Pak-choi (Brassica chinensis L.)

机译：氨基酸替代硝酸盐对小白菜生长，硝酸盐积累和宏观元素含量的影响

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摘要

A hydroponic experiment was carried out to determine the influence of replacing 20% of nitrate-N in nutrient solutions with 20 individual amino acids on growth, nitrate accumulation, and concentrations of nitrogen (N), phosphorus (P), and potassium (K) in pak-choi (Brassica chinensis L.) shoots. When 20% of nitrate-N was replaced with arginine (Arg)compared to the full nitrate treatment, pak-choi shoot fresh and dry weights increased significantly (P ≤ 0.05), but when 20% of nitrate-N was replaced with alanine (Ala), valine (Val), leucine (Leu), isoleucine (Ile), proline (Pro), phenylalanine (Phe), methionine (Met), aspartic acid (Asp), glutamic acid (Glu), lysine (Lys), glycine (Gly), serine (Ser), threonine(Thr), cysteine (Cys), and tyrosine (Tyr), shoot fresh and dry weights decreased significantly (P ≤ 0.05). After replacing 20% of nitrate-N with asparagine (Asn) and glutamine (Gln), shoot fresh and dry weights were unaffected. Compared to the full nitrate treatment, amino acid replacement treatments, except for Cys, Gly, histidine (His), and Arg, significantly reduced (P ≤ 0.05) nitrate concentrations in plant shoots. Except for Cys, Leu, Pro, and Met, total N concentrations in plant tissues of the other amino acid treatments significantly increased (P ≤ 0.05). Amino acids also affected total P and K concentrations, but the effects differed depending on individual amino acids. To improve pak-choi shoot quality, Gln and Asn, due to their insignificant effects on pak-choi growth, their significant reduction in nitrate concentrations, and their increase in macroelement content in plants, may be used to partially replace nitrate-N.
机译：进行了水培试验，以确定用20种单独的氨基酸替代营养液中20％的硝酸盐-N对生长，硝酸盐积累以及氮（N），磷（P）和钾（K）浓度的影响在白菜（Brassica chinensis L.）的芽中。与完全硝酸盐处理相比，当用精氨酸（Arg）替代20％的硝酸盐N时，小菜的鲜嫩和干重显着增加（P≤0.05），但是当将20％的硝酸盐N替换为丙氨酸时（P≤0.05）。 Ala），缬氨酸（Val），亮氨酸（Leu），异亮氨酸（Ile），脯氨酸（Pro），苯丙氨酸（Phe），蛋氨酸（Met），天冬氨酸（Asp），谷氨酸（Glu），赖氨酸（Lys），甘氨酸（Gly），丝氨酸（Ser），苏氨酸（Thr），半胱氨酸（Cys）和酪氨酸（Tyr）的地上鲜重和干重均显着降低（P≤0.05）。用天冬酰胺（Asn）和谷氨酰胺（Gln）替代20％的硝态氮后，鲜嫩和干重均不受影响。与完全硝酸盐处理相比，除Cys，Gly，组氨酸（His）和Arg以外的氨基酸替代处理可显着降低（P≤0.05）植物芽中的硝酸盐浓度。除半胱氨酸，亮氨酸，脯氨酸和蛋氨酸外，其他氨基酸处理的植物组织中总氮浓度均显着增加（P≤0.05）。氨基酸也影响总磷和钾的浓度，但效果因单个氨基酸而异。为了提高小白菜的苗期质量，由于Gln和Asn对小白菜的生长影响不显着，硝酸盐浓度显着降低以及植物中大量元素含量的增加，Gln和Asn可用于部分替代硝酸盐N。

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  • 来源
    《土壤圈（英文版）》 |2007年第5期|595-600|共6页
  • 作者

  • 作者单位

    Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029,China;

    College of Geography and Resource Sciences, Sichuan Normal University, Chengdu 610066,China;

    Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029,China;

    Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029,China;

    Department of Crop and Soil Sciences, the Pennsylvania State University (USA);

    Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029,China;

    College of Resources and Environment, China Agricultural University, Beijing 100094,China;

  • 收录信息 中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 农业基础科学;
  • 关键词

    amino acids, growth, N, P, and K, nitrate accumulation, pak-choi;

    机译：氨基酸;生长;氮;磷和钾;硝酸盐累积;小菜;
  • 入库时间 2022-08-19 04:04:15
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