水是影响小麦生产的主导因素之一,对小麦生理机能影响至关重要,由于水分生理与其他生理密不可分,就环境而言,水、光、温与渗透调节能力关系密切。因此,研究小麦水分盈亏对小麦光合生理指标及干物质积累的影响,可为小麦节水栽培提供理论依据。安徽省小麦常年种植面积约200万ｈｍ Water is one of the main factors affecting the wheat production. It is very important to the physiological functions of wheat. Because of its close relationship with water physiology and other physiology, water, light and temperature are closely related to osmotic adjustment. Therefore, to study the effects of wheat moisture gain and loss on photosynthetic physiological indices and dry matter accumulation of wheat could provide a theoretical basis for water-saving cultivation of wheat. Anhui Province, perennial planting area of ​​about 2000000 hm