| 摘要: |
| 运用美国LI-COR公司制造的LI-6400便携式光合作用测定系统,研究设施内金钱树(Zamioculcas zamiifolia)的光合特性。结果表明:金钱树叶片净光合速率的日变化呈双峰型,有明显的"光合午休"现象。金钱树苗期的光饱和点为427μmol·m-2·s-1,光补偿点为38μmol·m-2·s-1;CO2饱和点为1200μl·L-1,补偿点为60~70μl·L-1。对高温(>30℃)的反应敏感。金钱树适合于遮阴环境下生长。 |
| 关键词: 金钱树 苗期 光合特性 CO2浓度 |
| DOI： |
| 投稿时间：2003-06-20修订日期：2003-08-10 |
| 基金项目: |
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| The Research on Photosynthetic Characteristics in Leaves of Zamioculcas zamiifolia Seedings |
|
Wang Jingming1, Chen Dansheng2
|
| (1.Department of Sciences, Huizhou College, Huizhou, Guangdong, 516015, China;2.Department of Biology, Hanshan Teacher's College, Chaozhou, Guangdong, 521041, China) |
| Abstract: |
| The LI-6400 Portable Photosynthesis of LI-COR was used to study the photosynthetic characteristics in leaves of Zamioculcas zamiifolia seedings in greenhouses.The results showed that the daily variation of net photosynthetic rate in leaves has a bimodal curve,and there is an obvious "midday depression" phenomenon.The light saturation point was about 427 μmol·m-2 ·s-1,the light compensation point was about 38 μmol·m-2 ·s-1,the CO2 saturation point was about 1200 μl·L-1,and CO2 compensation point was about 60~70 μl·L-1.The photosynthesis was more sensitive to the higher temperature (>30℃).These indicated that the growth of Zamioculcas zamiifolia was better in shading. |
| Key words: Zamioculcas zamiifolia seedings photosynthetic characteristics CO2 concentration |
