1. USDA-ARS' Plant Genetics Res. Unit; Columbia MO 65211
2. Dep. Crop and Soil Sci.; Univ. of Georgia; Athens GA 30602
3. Dep. of Entomology; Univ. of Maryland; College Park MD 20742
4. Dep. of Agronomy, Horticultuk, and Entomology; Texas Tech Univ.; Lubbock TX 79409
5. Forage Genetics; N5292 Gills Coulee Rd. West Salem WI 54669
6. Dep. of Agronomy; Univ. of Missouri; Columbia MO 65211
7. Dep. of Plant Pathology; Ohio State Univ.; Columbus OH 43210
8. Dep. of Agronomy and Plant Genetics; Univ. of Minnesota; St. Paul. MN 55108
9. Agronomy Dep.; Purdue University; West Lafayette IN 47907