| 盘叶忍冬与台尔曼忍冬夏季主要光合特性的比较 |
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| 引用本文： | 田亦平,姜闯道,张金政,刘燕,石雷.盘叶忍冬与台尔曼忍冬夏季主要光合特性的比较[J].园艺学报,2006,33(5):1125-1128. |
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| 作者姓名： | 田亦平 姜闯道 张金政 刘燕 石雷 |
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| 作者单位： | ( 中国科学院植物研究所, 北京100093; 北京林业大学园林学院, 北京100083) |
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| 基金项目： | 中国科学院农业项目办公室项目(NK-十五-C-16，NB-115-04) |
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| 摘 要： | 研究了盘叶忍冬及台尔曼忍冬夏季的主要光合特性。结果表明: 台尔曼忍冬单叶叶面积较大,但比叶重小, 单位面积的色素含量较低。盘叶忍冬的光饱和光合速率和气孔导度均显著低于台尔曼忍冬,两者的光饱和点分别为400μmol·m- 2 ·s- 1和1 200μmol·m - 2 ·s- 1左右。此外, 二者的净光合速率日变化均为单峰曲线, 峰值分别出现在8: 00和10: 00。在本研究中两种忍冬的最大光化学效率差异较小, 但中等和强光条件下盘叶忍冬的实际光化学效率显著低于台尔曼忍冬, 而非光化学猝灭显著高于台尔曼忍冬。根据以上试验结果, 在我国北方露地栽培过程中台尔曼忍冬较盘叶忍冬对光照强度的适应幅度宽, 所以前者可应用于开阔地、林缘及疏林下的绿化, 而后者适于栽种在林下等较荫蔽的环境中。
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| 关 键 词： | 藤本忍冬 栽培 光合作用 叶绿素荧光 |
| 文章编号： | 0513-353X（2006）05-1125-04 |
| 收稿时间： | 2006-01-04 |
| 修稿时间： | 2006-01-042006-05-31 |
Characteristics of Photosynthesis in Lonicera tragophylla Hemsl. and L. tellmanniana Hort. Sp(a)th Seedlings in Summer |
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| Tian Yiping,Jiang Chuangdao,Zhang Jinzheng,Liu Yan,Shi Lei.Characteristics of Photosynthesis in Lonicera tragophylla Hemsl. and L. tellmanniana Hort. Sp(a)th Seedlings in Summer[J].Acta Horticulturae Sinica,2006,33(5):1125-1128. |
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| Authors: | Tian Yiping Jiang Chuangdao Zhang Jinzheng Liu Yan Shi Lei |
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| Institution: | (Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; College of Landscape Architecture, Beijing Forestry University, Beijing 100083, China) |
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| Abstract: | Photosynthesis characteristics of Lonicera tragophylla Hemsl. and its hybrid L. ×tellmanniana Hort. Spoth seedlings were investigated in summer under field condition. Compared with Lonicera tragophylla Hemsl. , L. ×tellmanniana Hort. Spoth seedlings had relatively larger single leaf area, but lower specific leaf weight ( SLW) and pigments content on leaf area basis. The light saturated photosynthetic rate ( Pn) and stomatal conductance (Gs) in L. ×tellmanniana Hort. Spoth leaveswere significantly higher than that in Lonicera tragophylla Hemsl. leaves. The light saturated intensities were 400 μmol·m- 2 · s- 1 for Lonicera tragophylla Hemsl. and 1 200μmol·m- 2 ·s- 1 for L. ×tellmanniana Hort. Spoth. During daily courses, the daily maximum photosynthetic rate in Lonicera tragophylla Hemsl. and L. ×tellmanniana Hort. Spoth leaves reached at 8: 00 am and 10: 00 am, respectively. In this study, the maximum quantum yield of photosystem Ⅱ exhibited little difference between Lonicera tragophylla Hemsl. and L. ×tellmanniana Hort. Spoth leaves. However, higher actual photosystem Ⅱ efficiency (ΦPSⅡ) and lower non2photochemical quenching (NPQ) in L. ×tellmanniana Hort. Spoth leaves were clearly observed when exposured to moderate and high irradiance. According to these results, it is easily deduced that Lonicera tragophylla Hemsl. seedlings are more sensitive to high irradiance than L. ×tellm anniana Hort. Spoth seedlings. Therefore, we suggest that Lonicera tragophylla Hemsl. seedlings should be planted in shade, and L. ×tellmanniana Hort. Spoth seedlings can be grown under full sunlight. |
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| Keywords: | Climbing honeysuckle Cultivation Photosynthesis Chlorphyll fluorescence |
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