| 水分亏缺对番茄生理特性及水分生产效率的影响 |
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| 引用本文： | 郭艳波,冯浩,吴普特.水分亏缺对番茄生理特性及水分生产效率的影响[J].灌溉排水学报,2008,27(3). |
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| 作者姓名： | 郭艳波 冯浩 吴普特 |
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| 作者单位： | 1. 中国科学院水利部水土保持研究所,陕西,杨凌,712100;西北农林科技大学,陕西,杨凌,712100
2. 中国科学院水利部水土保持研究所,陕西,杨凌,712100;西北农林科技大学,陕西,杨凌,712100;国家节水灌溉杨凌工程技术研究中心,陕西,杨凌,712100 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 根据番茄的生长发育特点,分别以50%、60%、75%田间持水量作为苗期、开花坐果期、结果期的土壤水分下限,每个生育期的土壤水分上限设置3个水分水平,研究不同生育期水分亏缺和亏缺程度对番茄生长发育及生理特性的影响。结果表明,不同生育期的水分亏缺对番茄株高、茎粗、叶绿素相对含量、日光合及蒸腾速率变化等均有不同程度的影响,呈现明显的生长与生理补偿效应,水分胁迫处理的日光合速率峰值提前出现,蒸腾速率随水分亏缺程度的增加而减少,这有助于调控番茄无用的蒸腾耗水。通过对番茄不同生育期的灌水量和产量关系的研究得出,当全生育期灌水量为4025.80 m3/hm2时,番茄可以获得最高产量12.84×104kg/hm2。
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| 关 键 词： | 番茄 水分亏缺 生理特性 水分生产效率 |
Effects of Water Stress on Physiological Characteristic and Water Production Efficiency of Tomato |
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| GUO Yan-bo,FENG Hao,WU Pu-te.Effects of Water Stress on Physiological Characteristic and Water Production Efficiency of Tomato[J].Journal of Irrigation and Drainage,2008,27(3). |
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| Authors: | GUO Yan-bo FENG Hao WU Pu-te |
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| Institution: | GUO Yan-bo1,3,FENG Hao1,2,WU Pu-te1,3(1.Institute of Soil , Water Conservation,Chinese Academy of Sciences,Yangling 712100,China,2.Northwestern Sci-Tech University of Agriculture , Forestry,3.National Engineering Research Center for Water Saving Irrigation at Yangling,China) |
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| Abstract: | Based on the growth and development rule of tomato,the lower limits of soil moister in its seedling stage,flowering and fruit setting stage,fruiting bearing stage were respectively set as 50%,60%,75% of field maintaining water quantity,soil irrigation maximum in each growing periods was set as three water supply levels water supply levels,effects of water stress on growth development and physiological characteristic of tomato were studied.The results show that water stress affected plant height,stem diamete... |
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| Keywords: | tomato water stress physiological characteristic water production efficiency |
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