| 叶用莴苣温室栽培单株光合作用日变化规律 |
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| 引用本文： | 李萍萍,胡永光,赵玉国,毛罕平. 叶用莴苣温室栽培单株光合作用日变化规律[J]. 园艺学报, 2001, 28(3): 240-245 |
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| 作者姓名： | 李萍萍 胡永光 赵玉国 毛罕平 |
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| 作者单位： | (江苏理工大学农业装备工程研究院, 镇江212013) |
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| 基金项目： | 国家自然科学基金资助项目（39870153） |
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| 摘 要： | 对不同季节不同天气条件下温室内叶用莴苣光合作用日变化规律进行了系统研究。结果表明, 在夏秋季晴天光合作用呈现双峰曲线, 越是高温强光, 峰值出现越早; 在冬季低温下晴天光合作用呈单峰曲线; 不同季节的阴到多云天气光合速率都随着光强的升降而升降。光合作用的高峰在一天中持续3~ 4 h, 若上午低温或弱光, 光合速率较低, 下午条件满足后仍可以达到较高峰值。
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| 关 键 词： | 莴苣 叶用莴苣 光合作用 日变化 温室 |
| 文章编号： | 0513-353X(2001)03-0240-06 |
| 修稿时间： | 2000-12-04 |
A Study on Daily Variation of Photosynthesis in Greenhouse Butterhead Lettuce |
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| Li Pingping,Hu Yongguang,Zhao Yuguo,and Mao Hanping. A Study on Daily Variation of Photosynthesis in Greenhouse Butterhead Lettuce[J]. Acta Horticulturae Sinica, 2001, 28(3): 240-245 |
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| Authors: | Li Pingping Hu Yongguang Zhao Yuguo and Mao Hanping |
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| Affiliation: | (Institute of Agricultural Equipment Engineering, Jiangsu University of Science and Technology , Zhenjiang 212013) |
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| Abstract: | The tests of daily variation of photosynthetic rate of butterhead lettuce grown in greenhouse are conducted.The results show that the daily variation of photosynthetic rate is a two peak curve in sunny days in summer and autumn season.While in winter with lower temperature,it is a one peak curve pattern.In the cloudy and raining days,the change of photosynthesis just follow the change of radiation.The photosynthesis maintaining at its high value is not more than 3-4 hours within a day.If the radiation and temperature cannot meet the need of crop in the morning,it is still possible to produce a photosynthetic peak in the afternoon with suitable environment factors for the crop photosynthesis. |
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| Keywords: | Lettuce Butterhead lettuce Photosynthesis Daily variation Greenhouse |
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