为了确定超高产麦田（9750kg/hm2）适宜的灌水时期和数量,深入挖掘超高产麦田的产量潜力。通过设置不同的灌水处理,研究灌水量和灌水期对超高产小麦花后旗叶衰老生理及产量的影响。结果表明：灌水对旗叶各衰老指标均有显著的调节作用,灌水通过改善旗叶的结构完整性和功能持续性,能够明显延缓超高产小麦花后旗叶衰老。与CK处理相比,灌水提高了超高产小麦灌浆期旗叶SPAD值、叶面积指数（LAI）、过氧化物酶（POD）、超氧化物歧化酶（SOD）、过氧化氢酶（CAT）活性,减少了膜脂过氧化产物丙二醛（MDA）的生成,在保证水分利用率的同时显著增加了籽粒产量。在实验条件下,灌冬水、拔节水和灌浆水各60mm的T5处理花后旗叶衰老明显延缓,产量达到超高产水平（9923.58kg/hm2）,与其他处理差异显著。继续增加灌水量,处理T7和T8旗叶SPAD值和LAI降低,POD、SOD和CAT活性增幅不大,在灌浆后期甚至出现下降,穗粒数、千粒重和水分利用率下降显著,籽粒产量降低。%To determine feasible irrigation stage and amount of super-high-yield land （9750 kg/hm2） and excavate the yield potential of super-high-yield wheat. We created conditions in super-high-yield land of Jinhai seed limited company to evaluate the effects of irrigation stage and amount on the flag leaf senescence and yield of super-high-yield wheat after anthesis. The results indicated that, irrigation had significantly effect on senescence indexes of the flag leaf, and irrigation could greatly delay the senescence of the flag leaf by improving the structural integrity and function continuity of the flag leaf. Compared to the control irrigation increased the chlorophyll content （SPAD value）, LAI, POD, SOD, CAT activity, decreased the final product of lipid peroxidation （MDA）, and significantly increased the grain yield of super-high-yield wheat while the water use efficiency was high. In the conditions of this experiment, the treatment T5 was irrigated 60 mm at wintering, jointing and filling stage respectively, of which the flag leaf senescence was obviously delayed, and its yield which was different from others significantly reached super-high-yield level （9923.58 kg/hm2）, so T5 was the feasible irrigation scheme to super-high-yield land. Continuing to increase irrigation amount （T7 and T8） the chlorophyll content（SPAD value） and LAI dropped, POD, SOD, CAT activity had little rate of increased amplitude, and grains per spike, 1000-grain weight and water use efficiency were decreased significantly.
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