请优化以下论文的讨论部分优化得更具有逻辑性和学术性Optimizing irrigation is possible to ensure yield and achieve water savings while minimum irrigation leads to yield reduction mainly due to water stress from jointing to flowe

4.2 Effect of weather conditions on yield and water consumption Our study also investigated the effect of weather conditions on winter wheat yield and water consumption. We found that Con and Opt practices were mainly affected by the minimum temperature and dry hot wind during the filling stage, while Min practice was primarily influenced by the pre-flowering rainfall conditions that affected the ear number. These findings are consistent with previous studies that have highlighted the importance of weather conditions in determining crop yield and water use efficiency (Liu et al., 2017; Wang et al., 2018).

Low minimum temperatures during the filling stage negatively impact winter wheat yield by reducing the filling rate and the accumulation of dry matter in grains (Wang et al., 2018). Dry hot winds during the filling stage also lead to rapid senescence and death of winter wheat, resulting in lower filling rates (Wang et al., 2018). These findings suggest that irrigation management should be adjusted to account for weather conditions during the filling stage to ensure optimal yield.

Pre-flowering rainfall conditions also play a crucial role in determining winter wheat yield. Our results showed that ear number was significantly affected by pre-flowering water stress, which limits tiller development during nutritional growth (Foulkes et al., 2011; M.Z. Siddiqui and Choudhary, 2017). These findings highlight the need for proactive water management strategies that account for pre-flowering rainfall conditions to ensure optimal yield.

4.3 Implications for water management Our study has important implications for water management strategies aimed at optimizing winter wheat yield and water use efficiency. Our results demonstrate that minimum irrigation leads to yield reduction, mainly due to water stress from jointing to flowering. In contrast, irrigation at jointing and anthesis can improve grain yield by increasing ear numbers and kernel number per ear.

Moreover, our findings suggest that weather conditions should be taken into account when designing water management strategies. Low minimum temperatures and dry hot winds during the filling stage should be considered when determining irrigation schedules to ensure optimal yield. Similarly, pre-flowering rainfall conditions should be taken into account to avoid water stress that limits tiller development during nutritional growth.

In conclusion, our study provides valuable insights into the complex interactions between water management and weather conditions in determining winter wheat yield and water use efficiency. These findings can inform the development of practical water management strategies that optimize yield while minimizing water consumption.