| NaCl胁迫下氮素营养与大麦幼苗生长和离子平衡的关系 |
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| 引用本文： | 沈振国,沈其荣.NaCl胁迫下氮素营养与大麦幼苗生长和离子平衡的关系[J].南京农业大学学报,1994,17(1):22-26. |
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| 作者姓名： | 沈振国 沈其荣 |
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| 作者单位： | 南京农业大学农学系 |
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| 摘 要： | 采用温室盆栽试验的方法，研究了ＮａＣｌ胁迫下施氮对大麦幼苗Ｎａ＋、Ｋ＋含量，净光合速率和植株生长的影响．Ｎａｃｌ处理降低幼苗Ｎ、Ｋ＋累积量．施Ｎ（１００，２００ｍｇ／ｋｇ）可以减少幼苗地上部的Ｎａ＋含量，增加含Ｋ＋量和Ｋ＋向上运输的选择性，降低第３叶的电解质渗出率；叶片的净光合速率和生长速率及幼苗干物重均因施氮而提高
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| 关 键 词： | 大麦 氮 NaCl胁迫 离子平衡 生长 |
RELATIONSHIP BETWEEN NITROGEN NUTRITION AND GROWTH OF BARLEY SEEDLINGS AS WELL AS ION BALANCE UNDER NaCl STRESSED |
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| Shen Zhenguo, Shen Qirong, Guan Hongying, Wang Zhenyu, Shen Kang.RELATIONSHIP BETWEEN NITROGEN NUTRITION AND GROWTH OF BARLEY SEEDLINGS AS WELL AS ION BALANCE UNDER NaCl STRESSED[J].Journal of Nanjing Agricultural University,1994,17(1):22-26. |
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| Authors: | Shen Zhenguo Shen Qirong Guan Hongying Wang Zhenyu Shen Kang |
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| Abstract: | Pot experiments were conducted in greenhouse to study the effect of nitrogen on the contents of sodium and potassium, net photosynthetic rate and growth of barley seedlings under salinity The results indicated that the application of nitrogen(100 and 200 mg/kg) increased the K content in shoots and K:Na selectivity ratio(SRK. Na) of transportation to shoot, but decreased the Na content in shoots and electrolyte leakage percentage of the third leaf. The net photosynthetic rates and growth rates of leaves increased with added nitrogen. |
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| Keywords: | barley nitrogen salinity ion balance growth |
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