Affiliation: | (1) Department of Crop and Soil Sciences, Washington State University, Pullman, WA 99164, USA;(2) Present address: Canadian Food Inspection Agency, 93 Mount Edward Road, Charlottetown, PE, Canada, C1E 2J5;(3) Present address: Pioneer Hi-Bred International, Inc., PO Box 1000, Johnston, IA 50131-0184, USA;(4) USDA ARS, Root Disease and Biological Control Research Unit, Pullman, WA 99164, USA; |