| 氨基酸态氮对水稻幼苗的效应研究 |
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| 引用本文： | 岳李心,莫良玉,范稚莲,刘朝晖. 氨基酸态氮对水稻幼苗的效应研究[J]. 广西农业科学, 2010, 41(3): 240-243 |
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| 作者姓名： | 岳李心 莫良玉 范稚莲 刘朝晖 |
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| 作者单位： | 广西大学农学院,南宁,530005 |
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| 基金项目： | 广西大学科研启动基金项目(CC160023) |
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| 摘 要： | 在无菌培养条件下，研究甘氨酸、谷氨酸、丝氨酸、组氨酸4种有机氮和无机氮（硫酸铵）对水稻幼苗的影响。结果表明，谷氨酸、甘氨酸和组氨酸3种有机氮和无机氮均被水稻吸收利用，其中对谷氨酸态氮表现出偏好性，但不吸收丝氨酸；浓度低于6mmol N／L的谷氨酸能促进水稻幼苗的根、叶片和株高的生长，提高植株生物量和含氮量，但浓度超过6mmol N/L后，促进作用有所减弱。说明水稻能够吸收利用有机氮，但对不同有机氮的吸收能力不同，只有在适宜的浓度范围内，有机氮对水稻幼苗生长的促进作用才有可能明显。
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| 关 键 词： | 无菌培养 水稻幼苗 无机氮 有机氮 氮素吸收 |
Effects of amino acid-N sources on rice seedling growth under sterilized culture conditions |
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| YUE Li-xin,MO Liang-yu,FAN Zhi-lian,LIU Chao-hui. Effects of amino acid-N sources on rice seedling growth under sterilized culture conditions[J]. Guangxi Agricultural Sciences, 2010, 41(3): 240-243 |
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| Authors: | YUE Li-xin MO Liang-yu FAN Zhi-lian LIU Chao-hui |
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| Affiliation: | Agricultural College;Guangxi University;Nanning 530005;China |
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| Abstract: | The present experiment was conducted to study the effects of different N sources(ammonium sulfate,glutamic acid,glycine,serine and histidine) with the same N concentration(6 mmol/L) on seedling growth of rice variety Liushayouzhan 202 under sterilized culture.After 15 days culture in media with different N sources,it was found that nitrogen from ammonium sulfate,glutamic acid,glycine and histidine could be absorbed by rice with glutamic-N being the most absorbed,while serine-N could not be absorbed.Applying... |
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| Keywords: | sterile culture rice（Oryza sativa L.） inorganic nitrogen organic nitrogen |
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