1. Dep. of Crop and Soil SciencesWashington State Univ.PullmanWA99164‐6420
2. USDA‐ARS Wheat HealthGenetics, and Quality Research UnitPullmanWA99164‐6420
3. Dep. of Plant, Soil and Entomological Sciences, Idaho Falls Research and Extension CenterUniv. of IdahoIdaho FallsID83402‐1575