Inadequate moisture is one of soybean's major yield determinants. The goal of this research project is to identify soybean varieties and experiment lines that can tolerate dry soil conditions. The researchers will create drought conditions in field plots using a black plastic barrier to alter soil moisture levels. They will the compare the agronomic response of ten commercial soybean varieties, ten experimental lines, and 80 plant introductions.

The project also involves comparing the response of fifteen commonly grown commercial soybean varieties to mid-May plantings. Since late planting increases the chance of drought, it is of interest to see if late planting could serve as...