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作者	单位
孙会娜，王科，徐心志，孙倩，王志强，林同保	（河南农业大学农学院/河南省粮食作物生理生态与遗传改良重点实验室，河南郑州 450002）

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中文摘要:

为给低压喷灌的应用提供理论依据，以传统灌溉方式（地面畦灌）为对照，研究了不同水量低压喷灌对冬小麦叶绿素含量、叶绿素荧光、光合特性及产量的影响。结果表明，低压喷灌显著提高了冬小麦叶绿素含量，尤其表现在中后期旗叶上，衰老明显延缓；提高了PSⅡ反应中心的光能转化效率和开放比例，增强了光合电子的传递能力；显著增加净光合速率，降低细胞间CO₂浓度、蒸腾速率和气孔导度；低压喷灌的小麦干物质积累、最终产量均高于地面畦灌，以减量15%的低压喷灌产量最高。

英文摘要:

To provide the theoretical foundation for the application of low pressure sprinkler irrigation, the effects of low pressure sprinkler irrigation on chlorophyll content, chlorophyll fluorescence, photosynthetic characteristic and yield were investigated using traditional irrigation methods (ground border irrigation) as control under field condition. The results showed that low pressure sprinkler irrigation obviously improved chlorophyll content, especially in the late growing period, delayed leaf senescence. Low pressure sprinkler irrigation improved the light energy conversion and the open scale of PSⅡ, enhanced the photosynthetic electron transport, significantly improved photosynthetic rate, and reduced the intercellular CO₂ concentration, decreased transpiration rate and stomatal conductance. The biomass and yield of sprinkler irrigation-treated wheat was significantly higher than that of ground irrigation, and the sprinkler irrigation with reducing 15% water was the best model in current experiment.

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