Chlormequat chloride is widely used in agriculture as a plant growth regulator. It is primarily applied to control the height and sturdiness of plants, particularly in cereal crops like wheat, barley, and oats. By inhibiting the elongation of plant stems, it helps prevent lodging, which is the bending or breaking of stems due to wind or heavy rain. This results in stronger, more resilient plants that are easier to harvest and less prone to yield loss. Additionally, it promotes more uniform growth and can improve the overall quality of the crop. Its application is typically done through foliar spraying or soil treatment, depending on the crop and desired outcome.