| 不同苗龄南方红豆杉幼苗的光合特性比较 |
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| 引用本文： | 童晓青,秦玉川,许琳,王衍彬,刘本同,钱华.不同苗龄南方红豆杉幼苗的光合特性比较[J].江西林业科技,2011(3):3-5,26. |
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| 作者姓名： | 童晓青 秦玉川 许琳 王衍彬 刘本同 钱华 |
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| 作者单位： | 浙江省林业科学研究院,浙江杭州,310023 |
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| 基金项目： | 浙江省科技厅"南方红豆杉药用林超短周期高效栽培技术中试与示范" |
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| 摘 要： | 用 LI-COR 6400便携式光合作用测定仪系统研究南方红豆杉的光合特性,结果表明:①1-4年生南方红豆杉幼苗的光饱和点为1000～1999μmol /m2.s,光补偿点为87-44.81μmol /m2·S,最大净光合速率为1.32～3.00μmol/m2.sl,接近耐阴喜光性植物的光合特征.②不同苗龄南方红豆杉幼...
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| 关 键 词： | 南方红豆杉 光合特性 苗龄 |
Comparison of Photosynthetic Characteristics of Seedlings of Taxus chinensis var.mairei in Different Growth Period |
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| TONG Xiaoqing,QIN Yuchuan,XU Lin,WANG Yanbin,LIU Bentong,QIAN Hua.Comparison of Photosynthetic Characteristics of Seedlings of Taxus chinensis var.mairei in Different Growth Period[J].Jiangxi Forestry Science and Technology,2011(3):3-5,26. |
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| Authors: | TONG Xiaoqing QIN Yuchuan XU Lin WANG Yanbin LIU Bentong QIAN Hua |
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| Institution: | (Zhejiang Forestry of Academy,Hangzhou Zhejiang 310023,China) |
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| Abstract: | With Licor-6400,photosynthetic characteristics in leaves of Taxus chinensis var.mairei were studied,the result showed that： the light compensation point（PLC）,light saturation point（PLS）,and maximun net photosynthetic rate（AMAX） were 87～44.8,1 000～1 999 μ mol /m2·s and 1.32～3.00 μ mol/m2·s,respectively,which be close to the photosynthetic characteristics of shade-tolerant light loving plants.The value of chlorophyll a,b,（a＋b）,a/b and chlorophyll contents of seedlings of T.chinensis var.mairei in different growth period,have prominence differences.The value of chlorophyll a/b increased with the increase in age of seedlings,the value of chlorophyll b increased with the increase in age of seedlings.The change of chlorophyll b contents was analyzed and the photosynthetic characteristics of seedlings of T.chinensis var.mairei in shade resistance and photophobia were elucidated. |
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| Keywords: | Taxus chinensis var mairei Photosynthesis characteristics Different growth period |
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