| 金森女贞光合生理特性的研究 |
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| 引用本文： | 李罡,傅玉兰. 金森女贞光合生理特性的研究[J]. 林业科技开发, 2009, 23(1) |
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| 作者姓名： | 李罡 傅玉兰 |
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| 作者单位： | 安徽农业大学林学与园林学院,合肥,230036 |
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| 摘 要： | 研究了金森女贞光合生理日变化及其光补偿点和饱和点.结果表明:金森女贞的单日净光合速率(Pn)呈双峰曲线,出现"午休"现象,造成Pn下降的主要原因是非气孔因素.蒸腾速率(Tr)和气孔导度(Gs)的变化趋势与Pn相似,胞间CO2浓度(Ci)与之相反.Pn与Ci和PAR的相关性达到极显著水平,Tr与PAR、RH和VPD均达到极显著水平.金森女贞的光补偿点(LCP)为16.67 μmol/(m2·s),饱和点(ISP)约为1 000 μmol/(m2·s),属于阳性植物.
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| 关 键 词： | 金森女贞 光合作用 光合参数 |
Photosynthetic Characteristics of Ligustrum japonicum'Howardii' |
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| LI Gang,Fu Yu-lan. Photosynthetic Characteristics of Ligustrum japonicum'Howardii'[J]. China Forestry Science and Technology, 2009, 23(1) |
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| Authors: | LI Gang Fu Yu-lan |
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| Affiliation: | LI Gang,FU Yu-lan Anhui Agricultural University School of Forestry , L,scape Architecture,230036 Hefei,China |
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| Abstract: | The photosynthetic parameters of Ligustrum japonicum 'Howardii' leaves including net photosynthetic rate(Pn),Transpiration rate(Tr),stomatal conductance(Gs),intercellular CO2 concentration(Ci),photosynthetic active radiation(PAR),relative humidity(RH),vapor pressure deficit at the leaf surface(VPD),light compensation point(LCP) and light saturation point(LSP) were measured in this study.The results showed that Pn had a diurnal change with two peaks,and the depression of Pn was mainly induced by non-stomatal... |
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| Keywords: | Ligustrum japonicum 'Howardii' Photosynthesis Photosynthetic parameters |
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