Cooperators
 
 
 South Dakota State University
 
 J. Rudd, Department of Plant Science, Brookings, SD 56107 Yue Jin
 Department of Plant Pathology, Brookings, SD 56107
 
 North Dakota State University
 
 R. Frohberg, Department of Plant Science, Fargo, ND 58105 R. Stack,
 Department of Plant Pathology, Fargo, ND 58105 B. Hanson, Langdon Exp.
 Sta., Langdon, ND 58249
 
 Agriculture and Agri-Food Canada
 
 F. Townley-Smith, J. Gilbert, Cereal Research Centre, AAFC, 195 Defoe
 Rd., Winnipeg Manitoba, Canada, R3T, 2M9
 
 University of Minnesota
 
 R. Busch (Coordinator), USDA-ARS, Plant Science Unit, and G. Linkert,
 411 Borlaug Hall, 1991 Buford Circle, St. Paul, MN 55108
 
 H. Ma, R. Dill-Macky, and J. Groth, Department of Plant Pathology, 495
 Borlaug Hall, 1991 Buford Circle, St. Paul, MN 55108
 
 Bob Henson, West Central Experiment Station, Morris