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| 蕾铃期涝渍相随对棉花叶片光合作用与产量的影响 | |
| 引用本文： | 刘凯文,朱建强,吴启侠.蕾铃期涝渍相随对棉花叶片光合作用与产量的影响[J].灌溉排水学报,2010,29(1). |
| 作者姓名： | 刘凯文 朱建强 吴启侠 |
| 作者单位： | 1. 湖北省涝渍灾害与湿地农业重点试验室,湖北,荆州,434025 2. 湖北省涝渍灾害与湿地农业重点试验室,湖北,荆州,434025;长江大学,农学院,湖北,荆州,434025 3. 长江大学,农学院,湖北,荆州,434025 |
| 基金项目： | 湖北省教育厅重大项目(Z200712002);;湖北省自然科学基金项目(ZRY1993) |
| 摘 要： | 在棉花蕾铃期进行了涝渍相随试验,对奢水胁迫过程及涝后棉花主茎功能叶的光合作用相关指标进行了观察。结果表明,随着涝后受渍程度的增加,叶片的叶绿素相对值、净光合速率、水分利用效率逐渐降低,叶片气孔导度则有增加的趋势,减产幅度达22%以上,严重者减产近一半。根据试验结果,为促进植株尽快恢复,建议在涝解除后3~6 d将地下水位降至80 cm以下,并在涝解除后第5 d或第6 d适当追肥。 |
| 关 键 词： | 涝渍相随 光合作用 棉花产量 蕾铃期 |
Effects of Subsurface Waterlogging Following after Surface Waterlogging in Period of Cotton Budding to Flowering and Bearing Bolls on Leaf Photosynthesis |
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| LIU Kai-wen,ZHU Jian-qiang,WU Qi-xia.Effects of Subsurface Waterlogging Following after Surface Waterlogging in Period of Cotton Budding to Flowering and Bearing Bolls on Leaf Photosynthesis[J].Journal of Irrigation and Drainage,2010,29(1). | |
| Authors: | LIU Kai-wen ZHU Jian-qiang WU Qi-xia |
| Institution: | 1.Hubei Provincial Key Laboratory on Waterlogging Disaster and Wetland Agriculture;Jingzhou 434025;China;2.College of Agronomy;Yangtze University;China |
| Abstract: | Experiments of subsurface waterlogging following surface waterlogging related to cotton were done,and photosynthetic indices of functional leaf of the crop were observed during watery stress and after that phase.The results showed that the relevant indices such as relative value of chlorophyll(Rc),neat photosynthetic velocity(Pn),water use efficiency of leaf(WUEL) are reduced gradually along with increase of the extent of subsurface waterlogging after surface waterlogging,while stomatal conductance of leaf(... |
| Keywords: | subsurface waterlogging following after surface waterlogging photosynthesis cotton yield period of cotton budding to flowering and boll sets |
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