| 桂花叶片水分含量及光合生理特性的研究 |
| |
| 引用本文： | 陈洪国,姜军权,孙全. 桂花叶片水分含量及光合生理特性的研究[J]. 安徽农业科学, 2006, 34(3): 417-418 |
| |
| 作者姓名： | 陈洪国 姜军权 孙全 |
| |
| 作者单位： | 咸宁学院化学与生命科学系,湖北,咸宁,437000;咸宁学院化学与生命科学系,湖北,咸宁,437000;咸宁学院化学与生命科学系,湖北,咸宁,437000 |
| |
| 摘 要： | 以柳叶桂、山桂和四季桂3个桂花品种为试材,研究了其水分、光合色素的含量以及净光合速率(Pn)、蒸腾速率和叶绿素荧光(Fv/Fm)的日变化。结果表明:山桂和柳叶桂的各种水分和光合色素的含量差异不显著,但与四季桂差异显著,其Pn日变化和蒸腾速率日变化都呈现先上升后下降的单峰曲线;Pn峰值出现在10:00左右,而蒸腾速率的峰值出现在12:00左右,最大光化学效率日变化呈单峰曲线,但呈现先下降后上升趋势。
|
| 关 键 词： | 桂花 水分 光合色素 光合作用 蒸腾作用 叶绿素荧光 |
| 文章编号： | 0317-6611（2006）03-0417-02 |
| 收稿时间： | 2005-10-23 |
| 修稿时间： | 2005-10-23 |
Daily Change of Photosynthesis and Chlorophyll Fluorescnce of Three Osmanthus fragrans Lour. Cultivars Leaf |
| |
| CHEN Hong-guo et al. Daily Change of Photosynthesis and Chlorophyll Fluorescnce of Three Osmanthus fragrans Lour. Cultivars Leaf[J]. Journal of Anhui Agricultural Sciences, 2006, 34(3): 417-418 |
| |
| Authors: | CHEN Hong-guo et al |
| |
| Affiliation: | Department of Chemistry and Life Science, Xianning College, Xianning, Hubei 437000 |
| |
| Abstract: | Three cultivars of sweet Osmanthus,Liuyegui,Shangui and Sijigui were used as materials to investigate the content of water,photosynthetic pigment and the diurnal changes of photosynthesis(Pn),transpiration rate,chlorophyll fluorescence(Fv/Fm).The results showed that: the content of the water and photosynthetic pigment in Liuyegui and Shangui had no significant difference but more obvious difference than Sijigui.The changes of Pn and transpiration rate appeared singular peak that increased at first and then decreased.The peak of Pn appeared at about 10 o'clock am,while the peak of the transpiration rate appeared at about 12 o'clock.The daily changes of maximal photochemistry efficiency appeared a tendency of falling firstly and then rising. |
| |
| Keywords: | Osmanthus fragrans Lour. Relative content of water Photosynthetic pigment Photosynthesis Transpiration Chlorophyll fluorescence |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
