| 灌溉模式对烤烟不同生育期光合特性的影响 |
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| 引用本文： | 王宇.灌溉模式对烤烟不同生育期光合特性的影响[J].节水灌溉,2012(3):36-39. |
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| 作者姓名： | 王宇 |
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| 作者单位： | 绍兴市水利局,浙江绍兴,312000 |
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| 基金项目： | 国家“863”计划项目，贵州省烟草公司科技计划项目，国家烟草专卖局科技计划项目 |
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| 摘 要： | 为探寻烤烟节水灌溉优化模式,采用避雨控水试验研究9种灌溉模式对烤烟不同生育期光合特性的影响。结果表明,伸根期灌溉控制下限为60%田持能显著提高该期烤烟净光合速率,并能显著促进烤烟旺长期净光合速率提高;成熟期灌溉控制下限为60%田持较70%田持更有利于提高该期烤烟净光合速率和叶片水分利用效率;推断"伸根期-旺长期-成熟期"灌溉下限为"60%-70%-60%"田持的灌溉模式在9种模式中为提高烤烟全生育期净光合速率的最优模式。
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| 关 键 词： | 烤烟 节水灌溉模式 光合特性 生育期 |
Effects of Irrigation Model on Photosynthesis of Flue-cured Tobacco in Different Growing Stages |
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| WANG Yu.Effects of Irrigation Model on Photosynthesis of Flue-cured Tobacco in Different Growing Stages[J].Water Saving Irrigation,2012(3):36-39. |
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| Authors: | WANG Yu |
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| Institution: | WANG Yu(Shaoxing Water Conservancy Bureau,Shaoxing 312000,Zhejiang Province,China) |
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| Abstract: | To optimize the mode of water-saving irrigation for flue-cured tobacco,a rain-proof experiment was conducted to investigate the effects of 9 irrigation modes on photosynthetic of flue-cured tobacco in different growing stages.The results showed that the net photosynthetic rates of flue-cured tobacco in root extending stage and fast growing stage were significantly increased when 60% of field capacity was controlled as the bottom line of irrigation in root extending stage.Compared with that of 70% FC,the net photosynthetic rate and leaf water use efficiency in maturity stage could be increased by the treatment of 60% FC.It can be concluded that the mode of "60% FC-70% FC-60% FC" was the best among 9 studied modes considered net photosynthetic rate of flue-cured tobacco for whole growth period. |
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| Keywords: | flue-cured tobacco irrigation model photosynthetic character growth stage |
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