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| 4种药用植物光合特性研究 | |
| 引用本文： | 刘奇峰,梁宗锁,蔡靖,姜在民,张硕新.4种药用植物光合特性研究[J].西北林学院学报,2007,22(6):10-13. |
| 作者姓名： | 刘奇峰 梁宗锁 蔡靖 姜在民 张硕新 |
| 作者单位： | 1. 西北农林科技大学,资源环境学院,陕西,杨陵,712100 2. 西北农林科技大学,生命科学学院,陕西,杨陵,712100 3. 西北农林科技大学,林学院,陕西,杨陵,712100 |
| 基金项目： | 教育部跨世纪优秀人才培养计划 |
| 摘 要： | 为了加深对药用植物光合生理特性的认识,对其进一步科学种植提供理论依据,采用Li6400便携式光合测定系统,对玫瑰、枇杷、杜仲、厚朴的光合速率日变化、季节变化、光响应曲线和CO2响应曲线进行了测定.结果表明:4种药用植物的光合速率日变化均呈“双峰“曲线,表现出明显的光合“午休“现象.年平均光合速率为枇杷＞杜仲＞玫瑰＞厚朴,光合能力为枇杷＞厚朴＞杜仲＞玫瑰.通过增加CO2浓度有可能提高4种药用植物的光合速率. |
| 关 键 词： | 光合特性 药用植物 光合速率 |
| 文章编号： | 1001-7461(2007)06-0010-04 |
| 修稿时间： | 2007年4月5日 |
Photosynthetic Characteristics of Four Medical Plants |
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| LIU Qi-feng,LIANG Zong-suo,CAI Jing,JIANG Zai-min,ZHANG Shuo-xin.Photosynthetic Characteristics of Four Medical Plants[J].Journal of Northwest Forestry University,2007,22(6):10-13. | |
| Authors: | LIU Qi-feng LIANG Zong-suo CAI Jing JIANG Zai-min ZHANG Shuo-xin |
| Abstract: | To further study the photosynthetic characteristics of medicinal plants,and provide theory basis for their scientific planting,the photosynthetic rates, light response curves of photosynthesis and CO2 response curves of four medicinal plants,namely Rosa rugosa,Eriobotrya japonica,Eucommia ulmoides and Magnolia officinalis,were measured by Li-6400 portable photosynthesis system.The results were as follows: The diurnal courses of photosynthesis were double peaked and they showed the midday depression of photosynthesis obviously,which was caused by the stomata-limited under high temperature and light intensity.The descending order of annual photosynthetic rates was: Eriobotrya japonica,Eucommia ulmoides,R.rugosa and M.officinalis,and their photosynthetic capabilities decreased order is: Eriobotrya.japonica,M.officinalis,Eucommia.ulmoides and R.rugosa.From these two curves,we can conclude that it is possible to improve the photosynthetic rates of these four medical plants by CO2 enrichment. |
| Keywords: | photosynthetic characteristic medical plants photosynthetic rate |
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