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| 不同光照强度下CO2浓度对韭菜净光合速率的影响 | |
| 引用本文： | 孙保亚,周永红,张伟春.不同光照强度下CO2浓度对韭菜净光合速率的影响[J].辽宁农业科学,2003(1):5-7. |
| 作者姓名： | 孙保亚 周永红 张伟春 |
| 作者单位： | 1. 沈阳市种子管理站,辽宁,沈阳,110034 2. 沈阳市农业科学院,辽宁,沈阳,110034 3. 辽宁省农业科学院园艺所,辽宁,沈阳,110161 |
| 摘 要： | 增加CO2浓度显著地提高韭菜的净光合速率，增加光照强度能够提高CO2的利用率及CO2的饱和点。韭菜对高浓度CO2比较敏感，易出现CO2“中毒”现象，提高光照强度能够扩展韭菜对高浓度CO2的适应范围。 |
| 关 键 词： | 韭菜 光照强度 C02浓度 净光合速率 |
| 文章编号： | 1002-1728(2003)01-0005-03 |
| 修稿时间： | 2002年9月20日 |
Effect of CO2 Concentration on Net Photosynthesis (Pn) of Chinese Chive under Different Intensity of Illumination |
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| SUN Bao ya ,ZHOU Yong hong ,ZHANG Wei chun.Effect of CO2 Concentration on Net Photosynthesis (Pn) of Chinese Chive under Different Intensity of Illumination[J].Liaoning Agricultural Sciences,2003(1):5-7. | |
| Authors: | SUN Bao ya ZHOU Yong hong ZHANG Wei chun |
| Institution: | SUN Bao ya 1,ZHOU Yong hong 2,ZHANG Wei chun 3 |
| Abstract: | In the experiment, the response of Chinese chive P n to CO 2 concentration was measured with different irradiance of 30.0 k lx and 65.0 k lx. P n increases with the increasing of CO 2 concentration from 50 mg/kg to the photosynthesis saturation point of CO 2 under both irradiance, but the photosynthesis saturation point of CO 2 varies with the different irradiance. The photosynthesis saturation point of CO 2 are 490 mg/kg and 670 mg/kg respectively under the irradiance of 30.0 k lx and 65.0 k lx. Strong irradiance increases the P n and the saturation point of CO 2 . It can increase the photosynthesis efficiency of CO 2. Over high CO 2 concentration such as 700 mg/kg restrains the P n of Chinese chive under irradiance of 35.0 k lx. The reason of this phenomenon should be further studied. The CO 2 compensation point of photosynthesis is 50 mg/kg. |
| Keywords: | Chinese chive intensity of illumination CO 2 concentration net photosynthes (P n) |
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