| 石楠与红叶石楠光合特性的比较 |
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| 引用本文： | 樊慧敏,赵志军,贾春波,王彦敏,王建书,张素军.石楠与红叶石楠光合特性的比较[J].浙江农业学报,2009,21(5). |
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| 作者姓名： | 樊慧敏 赵志军 贾春波 王彦敏 王建书 张素军 |
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| 作者单位： | 樊慧敏,赵志军,贾春波,王彦敏,王建书(河北工程大学,农学院,河北,邯郸,056021);张素军(邯郸市滏阳公园,河北,邯郸,056021) |
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| 基金项目： | 河北省科学技术研究与发展计划项目 |
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| 摘 要： | 在田间条件下采用英国PP Systems公司制造的CIRAS-2型便携式光合系统分析仪,对石楠、红叶石楠的光合特性进行测定.结果表明:在晴大条件下石楠、红叶石楠的光合速率日变化均为双峰曲线,并具有光合"午休"现象.石楠、红叶石楠的光饱和点分别约1 200～1 400 μmol·m-2·s-1,1 400～1 600 μmol·m-2·s-1;光补偿点分别为127.00 μmol·m-2·s-1,59.26 μmol·m-2·s-1;光合表观量子效率分别为0.02000,0.02216,说明石楠、红叶石楠属于喜光树种,且红叶石楠较耐荫,对光环境的适应性较强.
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| 关 键 词： | 石楠 红叶石楠 光合特性 |
Comparative study on photosynthetic characteristics of Photinia serrulata and Photinia frasery Dress |
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| Abstract: | The photosynthetic characteristics of Photinia serrulata and Photinia frasery Dress were measured in the field conditions using CIRAS-2 portable photosynthetic system made by the company of UK PP Systems. The result showed that both Photinia serrulata and Photinia frasery Dress had a double-peak curve of diurnal variation of photosynthesis and a phenoenon of photosynthetic "noon breaking" in sunny days. Light saturation points of Photinia serrulata and Photinia frasery Dress were 1 200-1 400 μmol·m~(-2)·s~(-1) and 1 400-1 600 μmol·m~(-2)·s~(-1) respectively, light compensation points of them were 127.00 μmol·m~(-2)·s~(-1) and 59.26 μmol·m~(-2)·s~(-1) respectively,and photosun-thetic apparent quantum yield of them were 0.02000 and 0.02216 respectively. The experimental results showed that Photinia serrulata and Photinia frasery Dress belongs to light species, and the shade tolerance and light adaptability of Photinia frasery Dress was better. |
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| Keywords: | Photinia serrulata Photiniafrasery Dress photosynthetic characteristics |
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