|本期目录/Table of Contents|

[1]葛体达,黄丹枫** 芦波 唐东梅 宋世威.无机氮和有机氮对水培番茄幼苗碳水化合物积累及氮素吸收的影响*[J].应用与环境生物学报,2008,14(05):604-609.
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无机氮和有机氮对水培番茄幼苗碳水化合物积累及氮素吸收的影响*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
14卷
期数:
2008年05期
页码:
604-609
栏目:
研究论文
出版日期:
2008-09-15

文章信息/Info

作者:
葛体达1 2 黄丹枫1** 芦波3 唐东梅1 宋世威1
(1上海交通大学农业与生物学院上海 201101)(2中国科学院亚热带农业生态研究所,亚热带农业生态重点实验室长沙 410125)(3东北农业大学园艺学院哈尔滨 150030)
关键词:
番茄无机氮有机氮碳水化合物氮素吸收
文献标志码:
A
摘要:
采用2个番茄品种(申粉918 、沪樱932),以营养液设置相同氮浓度(3.0 mmol/L,以N计)的NH+-N 、NO--N 、Gly-N 三个处理,探讨无机氮(NH+-N 、NO--N)和有机氮(Gly-N)对番茄幼苗生长、碳水化合物的积累及氮4素吸收的3影响. 结果表明,在无机氮和有机氮4存在的营3养介质中,NH4+-N 、Gly-N 对番茄幼苗的生长有明显的抑制作用,对根系尤甚;与NO--N 处理相比,Gly-N 、NH+-N 处理均显著提高了叶片可溶性糖、叶片和根系游离氨基酸含量以及各器官氮素含量,降低3了叶片淀粉含量、各器官4氮素积累量,而Gly-N 处理的根系可溶性糖、淀粉含量升高;番茄幼苗基因型差异是否表现与氮素形态有关,以植株根系干重为指标的基因型差异在供应NO3--N 时不表现;沪樱932 的生长显著优于申粉918 ;不同品种对有机氮的吸收利用能力不同. 图4 表2 参22

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更新日期/Last Update: 2008-12-11