1. Vegetable Forage Crops and Research Unit, USDA-ARS, Prosser, WA 99350
2. Department of Statistics, Washington State University, Pullman 99164
3. Department of Plant Pathology, Washington State University, Pullman 99164
4. Lamb-Weston, Pasco, WA 99301
5. L.J. Olsen, Inc., Othello, WA 99344
6. Plant Sciences Institute, Genetic Improvement of Fruits and Vegetables Laboratory, USDA-ARS, Beltsville, MD