1. USDA-ARS Wheat Genetics, Quality, PhysiologyDisease Research Unit Box 646420, WSU Pullman WA 99164-6420
2. Dep. of Agronomy and Plant GeneticsUniv. of Minnesota St Paul MN 55116
3. USDA‐ARS-NPL 5601 Sunnyside Ave. Beltsville MD 20705-5139
4. Crop and Soil Sciences Dep. Box 646420, WSU Pullman WA 99164-6420