1USDA/Agricultural Research Service, Prosser, USA
2Department of Crop Science, Oregon State University, Corvallis, USA
3Oregon State University, KBREC, Klamath Falls, USA
4Oregon State University, COES, Madras, USA
5Oregon State Unviersity, HAREC, Hermiston, USA
6Oregon State University, MES, Ontario, USA
7Department of Horticulture and Landscape Architecture, Washington State University, Pullman, USA
8USDA/Agricultural Research Service, Aberdeen, USA
9AREC, University of Idaho, Aberdeen, USA
10Department of Horticulture, Texas A&M University, College Station, USA
11Department of Horticulture and Landscape Architecture, Colorado State University, SLVRC, Center, Fort Collins, USA