Maize plants in the US Corn Belt can better withstand drought by having a limited-transpiration trait. This trait helps the plants use water more efficiently and save it for later in the season. While it may reduce water use, it can also improve yield in dry areas. A study showed that maize with this trait performed better in drought-prone regions, increasing yield by 135 grams per square meter. However, in areas where water is not a problem, there was a slight decrease in yield. This trait varies in its impact depending on the environment and plant density, showing potential for improving maize productivity in the future.