According to the text, global climate change is causing a threat to wheat productivity and there is an urgent need to improve yield under drought conditions. Studies show that drought significantly decreases leaf succulence and negatively affects winter wheat yield, especially during flowering and filling stages. Drought can also result in a reduction in the number of grains in spikes, as well as a decrease in days to maturity and grain filling duration. Under drought stress, there are significant differences in yield and yield-related traits, including days to booting, heading, anthesis, and grain filling duration. Pre-heading drought treatments have the greatest effect, and experiments have shown that early heading and maturity can indicate increased tolerance to drought. Overall, drought stress has a detrimental impact on wheat growth, resulting in reduced yield and physio-morphological traits.