| 遮荫对刺五加生长和光合特性日变化影响的研究 |
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| 引用本文： | 刘顺,郭爽,段进朝,任跃英,张建.遮荫对刺五加生长和光合特性日变化影响的研究[J].人参研究,2011,23(1):13-15. |
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| 作者姓名： | 刘顺 郭爽 段进朝 任跃英 张建 |
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| 作者单位： | 1. 吉林农业大学中药材学院·吉林长春·130118
2. 沈阳农业大学·辽宁沈阳·110161 |
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| 摘 要： | 在透光率为100%、60%、20%三种光照条件下,对两年生刺五加的生长和光合特性进行研究。结果表明刺五加移栽苗当年的茎粗、冠幅和叶面积的生长均表现为透光率60%>100%>20%,株高生长随透光率的增加而增加。刺五加的净光合速率在100%光照条件下为双峰曲线,上午10:00达到最高峰,之后即急剧下降,16:00出现次峰,表明自然光照条件下刺五加有明显"午休"现象,遮荫处理的净光合速率日变化规律均为单峰曲线,在12:00出现高峰,比全光照条件下延迟两小时,在全光照条件下刺五加有灼伤现象,因此在人工栽培刺五加的过程中可以进行林下栽植,以得到适当的遮荫,利于其生长。
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| 关 键 词： | 遮荫 刺五加 生长 光合特性 |
Effects of Shading on Growth and Photosynthetic Characteristics of Eleutherococcus Senticosus |
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| Authors: | Liu shun Guo Shuang Duan jin chao Ren yueying Zhang jiao |
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| Institution: | Liu shun Guo Shuang Duan jin chao Ren yueying(College of Traditional Chinese Medicin,Ji Lin Agricultural University,Chang chun 130118,Ji Lin) Zhang jiao(Shen yang Agricultural University,Shen yang 110161,Liao ning) |
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| Abstract: | An experiment was conducted to study the growth and photosynthetic characteristics of biennial Eleutherococcus senticosus under three shading levels(100%,60% and 20% of full light).The results indicated that the diameter increments of stem,crown and leaves of 1-year-old transplants reduced with light intensity changing from 60%,100% to 20%.However,height increment of the transplants rises with light intensity increasing.The daily variation of net photosynthetic rate presents a bimodal curve under 100% of fu... |
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| Keywords: | shading Eleutherococcus senticosus growth photosynthetic characteristics |
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