1. Department of Plant and Environmental Sciences Clemson University Clemson South Carolina USA
2. Pee Dee Research and Education Center Clemson University Florence South Carolina USA
3. Crop and Soil Sciences Department North Carolina State University Raleigh North Carolina USA
4. USDA‐ARS, Plant Science Research Unit Raleigh North Carolina USA
5. School of Plant, Environmental and Soil Sciences Louisiana State University Baton Rouge Louisiana USA
6. Forage Genetics International West Salem Wisconsin USA
7. Agronomy Department University of Florida Gainesville Florida USA
8. College of Agricultural Sciences Colorado State University Fort Collins Colorado USA
9. Department of Crop and Soil Sciences University of Georgia Griffin Georgia USA
10. Department of Soil and Crop Sciences Texas A&M University Commerce Texas USA
11. School of Plant and Environmental Sciences, Virginia Tech Blacksburg Virginia USA