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| 萌芽异常推迟对毛泡桐叶片光合特性的影响 | |
| 引用本文： | 张清,王振宇,徐永荣,孙磊,张权,冯宗炜.萌芽异常推迟对毛泡桐叶片光合特性的影响[J].湖北农业科学,2005(6):90-93. |
| 作者姓名： | 张清 王振宇 徐永荣 孙磊 张权 冯宗炜 |
| 作者单位： | 1. 天津泰达生态园林公司,天津,300457 2. 中国科学院生态环境研究中心,北京,100085;华中农业大学园艺园林学院,武汉,430070 3. 华中农业大学园艺园林学院,武汉,430070 4. 中国科学院生态环境研究中心,北京,100085 |
| 基金项目： | 天津市科技发展计划项目（023111811-2） |
| 摘 要： | 研究了毛泡桐的萌芽正常植株和萌芽推迟植株间在叶片光合特性上的差异。结果显示,毛泡桐正常植株光合特性日进程的总体值高于萌芽推迟的植株。曲线类型方面,晴天日进程曲线呈双峰型,说明毛泡桐存在光合午休现象;阴天日进程曲线呈单峰型。毛泡桐净光合速率、蒸腾速率及气孔导度的日均值方面,正常植株均高于萌芽推迟的植株,其中晴天二者差异达到极显著水平;阴天二者差异不显著。从光响应曲线上可看出,正常植株的光饱和点(1409μmol.m-2.s-1)也高于异常植株(1040μmol.m-2.s-1),但光补偿点则相反。 |
| 关 键 词： | 毛泡桐 萌芽推迟 叶片光合特性 |
| 文章编号： | 0439-8114(2005)06-0090-04 |
| 收稿时间： | 05 22 2005 12:00AM |
| 修稿时间： | 2005年5月22日 |
Influence of Putting Out Leaves Abnormal Late on the Leaf's Photosynthetic Characteristic of Paulownia tomentosa |
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| ZHANG Qing,WANG Zhen-yu,XU Yong-rong,ZHANG Quan,FENG Zong-wei.Influence of Putting Out Leaves Abnormal Late on the Leaf''''s Photosynthetic Characteristic of Paulownia tomentosa[J].Hubei Agricultural Sciences,2005(6):90-93. | |
| Authors: | ZHANG Qing WANG Zhen-yu XU Yong-rong ZHANG Quan FENG Zong-wei |
| Institution: | ZHANG Qing1,WANG Zhen-yu1,XU Yong-rong2,3,ZHANG Quan3,FENG Zong-wei2 |
| Abstract: | In this paper the photosynthetic characteristic of the normal and abnormal plants of Paulownia tomentosa in TEDA were studied.The results showed that the photosynthetic rate,transpiration rate and stomata conductivity of the normal plant were higher than those of the abnormal.There were two peaks in the curve of daily change of these parameters,which showed that Paulownia tomentosa had phenomenon of photosynthetic noon break and the single peak existed in the curve of daily change.The average of these parameters of the normal plant was higher than that of the abnormal,and there were great significant levels in fine day,but they were not significant in cloudy day.The photosynthetic respond curve showed that saturation point of the normal plant was higher than that of the abnormal. |
| Keywords: | Paulownia tomentosa putting out leaves late leaf's photosynthetic characteristic |
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