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Position: Home > Articles > Effects of Irrigation Model on Photosynthesis of Flue-cured Tobacco in Different Growing Stages Water Saving Irrigation 2012 (3) 36-39

灌溉模式对烤烟不同生育期光合特性的影响

作  者:
王宇
单  位:
绍兴市水利局
关键词:
烤烟;节水灌溉模式;光合特性;生育期
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。
译  名:
Effects of Irrigation Model on Photosynthesis of Flue-cured Tobacco in Different Growing Stages
作  者:
WANG Yu(Shaoxing Water Conservancy Bureau,Shaoxing 312000,Zhejiang Province,China)
关键词:
flue-cured tobacco;irrigation model;photosynthetic character;growth stage
摘  要:
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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