| 5种绿化灌木的光合特性 |
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| 引用本文： | 余倩花,邝琦,辜碧松,周厚高.5种绿化灌木的光合特性[J].仲恺农业技术学院学报,2010,23(1). |
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| 作者姓名： | 余倩花 邝琦 辜碧松 周厚高 |
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| 作者单位： | 仲恺农业工程学院,园艺与园林学院,广东,广州,510225 |
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| 摘 要： | 采用LI-6400XT便携式光合测定系统测定了5种绿化灌木大红花(Hibiscus rosa-sinensis L.)、海桐(Pittosporum tobira (Thumb.)Ait.)、灰莉(Fagraea cellnica Thumb.)、山茶(Camellia japonica L.)、鹅掌柴(Schefflera octophylla L.)的光合特性.结果表明,5种绿化灌木净光合速率的日变化与气孔导度、蒸腾速率的日变化相一致,但与胞间CO2浓度存在负相关关系.大红花的光饱和点最高,是较喜光的植物,山茶的光补偿点最低,具有较强的耐阴性.
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| 关 键 词： | 绿化灌木 光合特性 光饱和点 光补偿点 |
Study on photosynthetic characteristics of five ornamental shrubs |
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| YU Qian-hua,KUANG Qi,GU Bi-song,ZHOU Hou-gao.Study on photosynthetic characteristics of five ornamental shrubs[J].Journal of Zhongkai Agrotechnical College,2010,23(1). |
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| Authors: | YU Qian-hua KUANG Qi GU Bi-song ZHOU Hou-gao |
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| Institution: | YU Qian-hua,KUANG Qi,GU Bi-song,ZHOU Hou-gao(College of Horticulture , L,scape Architecture,Zhongkai University of Agriculture , Engineering,Guangzhou 510225,China) |
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| Abstract: | The photosynthetic characteristics of five ornamental shrubs were studied in this paper.The results showed that their net photosynthetic rate(Pn),stomatal conductance(Gs),transpiration rate(Tr),intercellular CO2 concentration(Ci) were detected by LI-6400XT Photosynthetic Analysis System,and then light compensation points(LCP) and light saturation points(LSP) were calculated.Pn correlated positively with Gs and Tr,while correlated negatively with Ci.Hibiscus rosa-sinensis was light-needed plant for highest L... |
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| Keywords: | ornamental shrubs photosynthetic characteristics light saturation points(LSP) light compensation points(LCP) |
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