为探究拔节期不同亏水-复水模式对冬小麦生长、生理及产量的影响，设置了拔节期不同程度土壤含水率和亏水时长，土壤含水率分别为Y1(55%~65%）θ_f 、Y2（65%~75%）θ_f 、Y3（75%~85%）θ_f （θ_f 为田间持水量），亏水时长均为7 d，然后复水，另设全生育期充分灌水对照处理CK（85%~100%）θ_f，每个处理重复3次。复水7天后测定各处理冬小麦株高、叶绿素、净光合速率、荧光参数、产量及水分利用效率。结果表明： Y1、Y2、Y3各处理亏水7 d然后复水7 d后，与对照组CK相比，冬小麦株高分别提高了2.38%、9.52%、12.70%，叶绿素（SPAD）分别增长了0.67%、2.51%、3.85%，净光合速率分别降低了19.32%、14.02%、11.74%，Fv/Fm分别降低了9.64%、8.43%、6.02%，Fv/F ₀分别降低了9.00%、5.91%、4.63%，发现亏水-复水处理后的冬小麦表现出明显的生长补偿效应；纵向和自身相比，较亏水7 d刚结束时株高、叶绿素（SPAD）、净光合速率、Fv/Fm和Fv/F ₀分别提高了22.86%、25.96%、26.87%，17.46%、19.23%、21.73%，7.04%、6.61%、6.44% ，16.30%、16.87%、16.84%，12.20%、11.67%、11.88%。最终产量结果为：Y1、Y2、Y3各处理比CK分别低18.84%、5.58%、0.79%，Y3处理的产量相较于Y1与Y2处理分别高22.24%与5.08%。Y3处理的水分利用效率值最大，分别较Y1、Y2、CK处理提高了8.29%、0.55%、2.77%。Y3为节水稳产适宜亏水模式。

In order to explore the effects of different deficit-rewatering modes at jointing stage on the growth， physiology and yield of winter wheat， different degrees of soil moisture content and duration of water deficit were set at jointing stage in the experiments. The soil moisture content was set as Y1 treatment of (55%~65%) θ_f， Y2 treatment of (65%~75%) θ_{f and Y3 treatment of (75%~85%) θf (θf is field capacity)， the duration of water deficit was 7 days， and then the soil was rewatered. In addition， CK of (85%~100%) θf with full irrigation during the whole growth period was set as the control treatment. Each treatment was repeated 3 times. Plant height， chlorophyll， net photosynthetic rate， fluorescence parameters， yield and water use efficiency of winter wheat were measured after rewatering for 7 days. The results showed that： the plant height of winter wheat in Y1，Y2 and Y3 treatments was increased by 2.38%，9.52% and 12.70%， and the chlorophyll (SPAD) was increased by 0.67%， 2.51% and 3.85%， respectively， compared with CK after 7 days of water deficit and rewatering. The net photosynthetic rate was increased by 7.04%， 6.61% and 6.44%， Fv/Fm was increased by 16.30%， 16.87% and 16.84%， and Fv/F 0 was increased by 12.20%，11.67% and 11.88%，respectively. It was found that the growth compensation effect was obvious in the winter wheat after deficit-rewatering treatment. Compared with itself at the end of 7 days of water deficit， plant height were increased by 22.86%， 25.96% and 26.87%， chlorophyll (SPAD) were increased by 17.46%， 19.23% and 21.73%， The net photosynthetic rate was increased by 7.04%， 6.61% and 6.44%，Fv/Fm was increased by 16.30%、16.87%、16.84%，and Fv/F 0 was increased by 12.20%，11.67% and 11.88%， respectively. The final yield of Y1，Y2 and Y3 treatment was 18.84%，5.78% and 0.79% lower than that of CK， respectively. The yield of Y3 treatment was 22.24% and 5.08% higher than that of Y1 and Y2 treatment，respectively. The water use efficiency of Y3 treatment was the highest，which was 8.29%，0.55% and 2.77% higher than that of Y1，Y2 and CK，respectively. So Y3 treatment is a suitable water deficit model for water saving and stable yield.}