1. School of Food Science, Washington State University, Pullman, WA 99164-6420, U.S.A.
2. U.S. Department of Agriculture, Agricultural Research Service-CSWQRU, Wooster, OH 44691, U.S.A.
3. Columbia Basin Agricultural Research Center, Oregon State University, Pendleton, OR 97801, U.S.A.
4. U.S. Department of Agriculture, Agricultural Research Service-CPCRC, Adams, OR 97810, U.S.A.
5. Department of Crop and Soil Sciences Washington State University, Pullman, WA 99164-6420, U.S.A.