| NaCl胁迫与等渗PEG处理对荞麦光合速率和呼吸速率的影响 |
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| 引用本文： | 杨洪兵.NaCl胁迫与等渗PEG处理对荞麦光合速率和呼吸速率的影响[J].作物杂志,2011,27(4):38-39. |
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| 作者姓名： | 杨洪兵 |
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| 作者单位： | 青岛农业大学生命科学学院,266109,山东青岛 |
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| 基金项目： | 山东省自然科学基金项目，青岛农业大学高层次人才启动基金项目 |
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| 摘 要： | 以耐盐荞麦品种川荞1号和盐敏感荞麦品种TQ-0808为试验材料,采用50mmol/L和100mmol/L的NaC l胁迫和等渗PEG处理,结果表明:低盐度胁迫明显促进耐盐品种的光合速率,而高盐度胁迫时盐敏感品种的光合速率显著下降;相同盐度胁迫下,盐敏感品种呼吸速率增加幅度明显大于耐盐品种,2个荞麦品种在高盐度胁迫下呼吸速率增加幅度大于等渗PEG处理,盐敏感品种表现得更为明显,这可能是Na+毒害效应的结果。
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| 关 键 词： | 荞麦 NaCl胁迫 等渗PEG 光合速率 呼吸速率 |
Effects of NaCl Stress and Iso-osmotic PEG Treatment on Photosynthetic Rate and Respiratory Rate of Buckwheat |
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| Yang Hongbing.Effects of NaCl Stress and Iso-osmotic PEG Treatment on Photosynthetic Rate and Respiratory Rate of Buckwheat[J].Crops,2011,27(4):38-39. |
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| Authors: | Yang Hongbing |
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| Institution: | Yang Hongbing(College of Life Science,Qingdao Agricultural University,Qingdao 266109,Shandong,China) |
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| Abstract: | Salt-tolerant buckwheat variety Chuanqiao No.1 and salt-sensitive variety TQ-0808 were choosed as experimental materials,which were treated with NaCl(50 and 100mmol/L) stress and iso-osmotic PEG treatment.Salt stress of low concentration obviously promoted the photosynthetic rate of the salt-tolerant variety,while that of high concentration played a negative role on the salt-sensitive one.The respiratory rate of the salt-sensitive variety increased obviously more than that of the salt-tolerant one under sal... |
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| Keywords: | Buckwheat NaCl stress Iso-osmotic PEG Photosynthetic rate Respiratory rate |
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