| 米瓦罐的光合特性研究 |
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| 引用本文： | 张健,刘美艳,.米瓦罐的光合特性研究[J].广西植物,2005,25(6):576-578. |
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| 作者姓名： | 张健 刘美艳 |
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| 作者单位： | 徐州师范大学生命科学学院,江苏,徐州,221116 |
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| 基金项目： | 徐州师范大学科研基金资助项目（03XLB16）. |
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| 摘 要： | 采用美国LI-COR生产的LI-6400便携式光合系统研究了米瓦罐的光合特性。结果表明,米瓦罐光 合速率的日变化呈单峰曲线,上午10:00时光合速率达到最大值;在大气CO2浓度下,米瓦罐的光饱和点为 1 800μmol·m-2·s-1,光补偿点为30μmol·m-2·s-1;在光饱和点的光强下,米瓦罐的CO2饱和点为1 200 μmolCO2·mol-1,CO2补偿点为40μmolCO2·mol-1。
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| 关 键 词： | 米瓦罐 日变化曲线 光饱和点 光补偿点 CO2饱和点 CO2补偿点 |
| 文章编号： | 1000-3142(2005)06-0576-03 |
| 收稿时间： | 2004-10-02 |
| 修稿时间： | 2005-01-16 |
Study on the photosynthetic characters of Silene conoidea |
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| ZHANG Jian,LIU Mei-yan.Study on the photosynthetic characters of Silene conoidea[J].Guihaia,2005,25(6):576-578. |
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| Authors: | ZHANG Jian LIU Mei-yan |
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| Abstract: | The photosynthetic characters of leaves in Silene conoidea were studied with LI-6400 portable photosynthesis system. The results showed that the diurnal variation of photosynthetic rate presented a single peak curve, and the maximum value of photosynthetic rate appeared at 10am. Under atmospheric CO2 concentration, the light saturation point was about 1 800 μmol · m-2 · s-1 and the light compensation point was about 30 μmol · m-2 · s-1. When the light intensity was at the light saturation point, the CO2 saturation point of Silene conoidea was about 1 200 μmolCO2 · mol-1 and the CO2 compensation point was about 40 μmolCO2 · mol-1. |
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| Keywords: | Silene conoidea diurnal variation curve light saturation point light compensation point CO2 saturation point CO2 compensation point |
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