1. Forage Improvement Division, The Samuel Roberts Noble Foundation, Ardmore, OK
2. Department of Crop Sciences, University of Illinois, Urbana, IL
3. Department of Plant Breeding and Genetics, Cornell University, Ithaca, NY
4. The Land Institute, Salina, KS
5. US Forest Service, US Department of Agriculture, Washington, DC
6. Department of Soil and Crop Science, Texas A&M University, College Station, TX
7. Agricultural Research Service, US National Arboretum, US Department of Agriculture, Beltsville, MD
8. Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM
9. National Institute of Food and Agriculture, US Department of Agriculture, Washington, DC