1. Department
of Environmental Sciences, University of California, Riverside, California 92521, United States
2. U.S.
Salinity Laboratory, Agricultural Research Service, U.S. Department of Agriculture, 450 West Big Springs Road, Riverside, California 92507, United States
3. Dow AgroSciences, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
4. TriCal Inc., P.O. Box 1327, Hollister, California 95024, United States