| 遮光处理对扶芳藤生长和光合特性的影响 |
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| 引用本文： | 郭宝林,杨俊霞,鲁韧强,吴琰,郭婧,李欣悦.遮光处理对扶芳藤生长和光合特性的影响[J].园艺学报,2007,34(4):1033-1036. |
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| 作者姓名： | 郭宝林 杨俊霞 鲁韧强 吴琰 郭婧 李欣悦 |
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| 作者单位： | (河北农业大学林学院, 河北保定071000; 北京市农林科学院林业果树研究所, 北京100093) |
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| 基金项目： | 北京市重点实验室果树逆境生理与分子生物学实验室资助项目;国家科技部农业科技转化资金项目 |
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| 摘 要： | 研究了不同遮光处理(0、30%、60%、80%)对红脉扶芳藤生长及光合特性的影响。结果表明:在全光下,扶芳藤光饱和点(606.4 μmol·m-2·s-1)和光补偿点(32.6 μmol·m-2·s-1)均较低,属耐荫植物,净光合速率日变化呈双峰曲线,有"午休"现象,一天内Pn总值低于遮光处理,枝叶生长较慢;遮光处理,Pn呈单峰曲线,且高于全光处理;遮光30%60%下,光合作用较强,蒸腾旺盛,枝叶生长加快,叶片组织结构正常,叶片变薄,比叶质量下降,叶绿素总量增加,叶色浓绿,观赏价值增强,表明一定程度的遮光有利于扶芳藤生长发育。
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| 关 键 词： | 扶芳藤 遮光处理 生长 光合特性 |
| 文章编号： | 0513-353X（2007）04-1033-04 |
| 收稿时间： | 2007-2-22 |
| 修稿时间： | 2007-02-22 |
Effects of Shade Treatment on the Growth and Photosynthesis Characteristics of Euonymus fortunei |
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| GUO Bao-lin,YANG Jun-xia,LU Ren-qiang,WU Yan,GUO Jing,LI Xin-yue.Effects of Shade Treatment on the Growth and Photosynthesis Characteristics of Euonymus fortunei[J].Acta Horticulturae Sinica,2007,34(4):1033-1036. |
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| Authors: | GUO Bao-lin YANG Jun-xia LU Ren-qiang WU Yan GUO Jing LI Xin-yue |
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| Institution: | ( Forestry College, Agricultural University of Hebei, Baoding, Hebei 071000, China; Institute of Pomology and Forestry, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093,China) |
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| Abstract: | The effects of different shading treatments(0, 30%, 60% and 80% of full sunlight) on the growth and photosynthetic physiological characteristics of Euonymus fortunei 'Hongmai’ were studied. The results indicated that Euonymus fortunei was a shade-loving plant with low light-saturation point(606.4 μmol·m-2· s-1) and low light-compensation point(32.6 μmol·m-2· s-1). The curve of diurnal variation of leaf photosynthesis showed two peaks in a day, under full light with 'Wuxiu’phenomenon, the total Pn value of full sunlight was lower than that of shading treatment, the branches and leaves grew slow. After shading treatment, there was only one Pn peak was a single curve and the peak was high after shading(30%-60% of full sunlight). Under weak light stress, the Pn and transpiration were higher, the branch and leaves grew quicking, the leaf mass reduecd and leaf thinner, but the leaf tissue were normal, the content of chlorophyll increased and leaf color was dark green, thus increasing the ornamental value in weak light stress than in full light. A moderate amount of shade will favarable to the growth and development. |
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| Keywords: | Euonymus fortunei(Turcz )Hand -Mazz Shading treatment Growth Photosynthetic characteristics |
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