| 四倍体与二倍体白桦的光合特性比较 |
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| 引用本文： | 杜琳,李永存,穆怀志,张添咏,刘菲菲,黄海娇,刘桂丰.四倍体与二倍体白桦的光合特性比较[J].东北林业大学学报,2011,39(2):1-4. |
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| 作者姓名： | 杜琳 李永存 穆怀志 张添咏 刘菲菲 黄海娇 刘桂丰 |
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| 作者单位： | 林木遗传育种与生物技术教育部重点实验室(东北林业大学); |
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| 基金项目： | 东北林业大学本科生创新性实验项目(091022502); 植物新品种DUS测试指南及已知品种数据库——桦木属(200902)资助 |
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| 摘 要： | 以4年生四倍体白桦和二倍体白桦为试材,对其光合作用日变化、光响应曲线、CO2响应曲线和叶绿素荧光参数进行测定.结果表明:①四倍体和二倍体白桦均有光合作用"午休"现象,四倍体的全天最大净光合速率极显著高于二倍体(P＜0.01),较二倍体提高了24.81%.②光饱和点、光补偿点和羧化效率等指标在两者之间的差异也极显著(P＜...
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| 关 键 词： | 白桦 四倍体白桦 二倍体白桦 光合作用 |
Photosynthetic Characteristics of Tetraploid and Diploid Betula Platyphylla |
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| Du Lin,Li Yongcun,Mu Huaizhi,Zhang Tianyong,Liu Feifei,Huang Haijiao,Liu Guifeng.Photosynthetic Characteristics of Tetraploid and Diploid Betula Platyphylla[J].Journal of Northeast Forestry University,2011,39(2):1-4. |
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| Authors: | Du Lin Li Yongcun Mu Huaizhi Zhang Tianyong Liu Feifei Huang Haijiao Liu Guifeng |
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| Institution: | Du Lin,Li Yongcun,Mu Huaizhi,Zhang Tianyong,Liu Feifei,Huang Haijiao,Liu Guifeng(Key Laboratory of Forestry Tree Genetic Improvement and Biotechnology(Northeast Forestry University),Ministry of Education,Harbin 150040,P.R.China) |
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| Abstract: | Diurnal variation of photosynthesis,light response curve,CO2 response curve, and parameters of chlorophyll fluorescence were determined using leaves of 4-year-old tetraploid and diploid Betula platyphylla as experimental materials.Results showed that the phenomena of midday depression of photosynthesis were observed in the tetraploid and diploid B.platyphylla.The maximum net photosynthetic rate(Pmax) of the tetraploid B.platyphylla was significantly higher than that of the diploid(P<0.01) during the whole d... |
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| Keywords: | Betula platyphylla Tetraploid Diploid Photosynthesis |
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