| 遮光、密闭环境对番茄植株蒸腾的影响 |
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| 引用本文： | 李霞,王国栋,薛绪掌,解迎革,李邵,陈菲. 遮光、密闭环境对番茄植株蒸腾的影响[J]. 灌溉排水学报, 2009, 28(1) |
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| 作者姓名： | 李霞 王国栋 薛绪掌 解迎革 李邵 陈菲 |
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| 作者单位： | 李霞,LI Xia(西北农林科技大学,理学院,陕西,杨凌,712100;国家农业信息化工程技术研究中心,北京,100097);王国栋,解迎革,WANG Guo-dong,XIE Ying-ge(西北农林科技大学,理学院,陕西,杨凌,712100);薛绪掌,李邵,陈菲,XUE Xu-zhang,LI Shao,CHEN Fei(国家农业信息化工程技术研究中心,北京,100097) |
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| 基金项目： | 国家高技术研究发展计划(863计划),国家科技支撑计划 |
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| 摘 要： | 在茎热平衡技术测定植株茎流的原理基础上,结合温室内气象数据采集仪器,通过对小温室做遮光、密闭处理,探讨番茄茎流的变化规律。结果表明,密闭温室处理后晴天番茄茎流变化趋势不变,但白天茎流明显减小,此时影响茎流的环境参数除光照外,温室内的大气温度、空气相对湿度以及CO2浓度等都不能忽略。人为改变光照,使茎流随之发生改变,变化规律与光照强度的变化规律相似,所不同的是茎流变化曲线稍稍滞后于光照的变化曲线;茎流随光照的降低而逐渐减小,在时间上有一个延迟。当白天遮光变温室为"黑暗"状态时,茎流缓慢减小,但此时茎流却远远大于夜晚茎流,而且白天温室内"黑暗"状态处理的不同时间段茎流减小的快慢是不一样的。
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| 关 键 词： | 番茄 茎流 蒸腾速率 环境因子 气孔导度 |
Effects of Shading and Obturating on Tomato Transpiration in Greenhouse |
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| LI Xia,,WANG Guo-dong,XUE Xu-zhang,XIE Ying-ge,LI Shao,CHEN Fei. Effects of Shading and Obturating on Tomato Transpiration in Greenhouse[J]. Journal of Irrigation and Drainage, 2009, 28(1) |
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| Authors: | LI Xia WANG Guo-dong XUE Xu-zhang XIE Ying-ge LI Shao CHEN Fei |
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| Affiliation: | 1.College of Science;Northwest A & F University;Yangling 712100;China;2.National Engineering Research Center for Information Technology in Agriculture;Beijing 100097;China |
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| Abstract: | On the basis of the stem heat balance principle to measure the plant transpiration,with the instruments to collect meteorological data in greenhouse,we studied the variation rules of tomato sap flow under different environmental treatments through shading and obturating environment.The results showed the trend of tomato sunny sap flow was invariable in the obturated greenhouse,but sap flow was obviously diminished.Besides illuminance,temperature,humidity and CO2 concentration were necessary environmental pa... |
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| Keywords: | tomato sap flow transpiration rate environmental factors stomatal conductance |
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