| 拔节期模拟酸雨对春小麦叶片光合特性的影响 |
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| 引用本文： | 姚桃峰,王润元,王鹤龄,赵鸿.拔节期模拟酸雨对春小麦叶片光合特性的影响[J].安徽农业科学,2010,38(15):8069-8073. |
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| 作者姓名： | 姚桃峰 王润元 王鹤龄 赵鸿 |
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| 作者单位： | 1. 中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,中国气象局干旱气候变化与减灾重点开放实验室,甘肃兰州,730020;兰州交通大学环境与市政工程学院,甘肃兰州,730070
2. 中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,中国气象局干旱气候变化与减灾重点开放实验室,甘肃兰州,730020 |
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| 基金项目： | 国家科技部公益(气象)行业专项，中国气象局兰州干旱气象研究所干旱基金项目 |
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| 摘 要： | 为探明酸雨对春小麦光合特性的影响,分别用pH值为1.5、2.5、3.5、4.5和5.6的模拟酸雨在春小麦拔节期对其进行喷淋,然后测定不同pH值模拟酸雨处理后春小麦叶片的光合参数。结果表明,酸雨pH值与净光合速率、气孔导度、蒸腾速率、水分利用效率以及叶绿素相对含量均呈极显著正相关,与胞间CO2浓度呈极显著负相关。酸雨使小麦叶片净光合速率下降了4.08%～67.04%,气孔导度下降了17.44%～58.44%,蒸腾速率下降了12.08%～48.08%,胞间CO2浓度上升了9.01%～14.29%,叶绿素相对含量下降了12.16%～37.23%。模拟酸雨处理后,春小麦叶片净光合速率与气孔导度、蒸腾速率、水分利用效率和叶绿素相对含量呈极显著正相关,与胞间CO2浓度呈极显著负相关。蒸腾速率与气孔导度、水分利用效率和叶绿素相对含量均呈极显著正相关,与胞间CO2浓度呈极显著的负相关。酸雨对春小麦叶片光合特性的影响随酸雨的氢离子浓度增大而愈显著。
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| 关 键 词： | 模拟酸雨 春小麦 水分利用效率 光合特性 |
Stress Effects of Simulated Acid Rain on Photosynthetic Characteristics of Field-grown Spring Wheat at the Jointing Stage |
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| YAO Tao-feng et al.Stress Effects of Simulated Acid Rain on Photosynthetic Characteristics of Field-grown Spring Wheat at the Jointing Stage[J].Journal of Anhui Agricultural Sciences,2010,38(15):8069-8073. |
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| Authors: | YAO Tao-feng |
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| Institution: | YAO Tao-feng et al(Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province,Key Open Laboratory of Arid Climate Change and Disaster Reduction of CMA,Institute of Arid Meteorology,CMA,Lanzhou,Gansu 730020) |
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| Abstract: | In order to investigate the effect of acid rain on photosynthetic characteristics of spring wheat,spring wheat at the jointing stage was sprayed with simulated acid rain at different pH levels of 1.5,2.5,3.5,4.5 and 5.6,and then,the yield and the photosynthetic parameters of spring wheat leaves were monitored.The results indicated the pH value of simulated acid rain was significantly positively correlated with net photosynthetic rate,stomatal conductance,transpiration rate,water use efficiency and the relat... |
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| Keywords: | Simulated acid rain Spring wheat Water use efficiency Photosynthetic characteristics |
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