1. USDA-ARS; U.S. Dairy Forage Research Center; 1925 Linden Dr. Madison WI 53706-1108
2. USDA-ARS (retired), Grain, Forage, and Bioenergy Research Unit, 137 Keim Hall, Dep. Agronomy and Horticulture; Univ. of Nebraska-Lincoln; Lincoln NE 68583-0937
3. USDA-ARS; Plant Genetic Resources Conservation Unit; 1109 Experiment Street Griffin GA 30223