Mahesh Lal Maskey, University of California Davis, Department of Land, Air and Water Resources, Davis, CA, United States, Tapan B Pathak, University of California Division of Agriculture and Natural Resources, Merced, CA, United States, Octavio Lagos, Universidad de Concepción, Departamento de Recursos Hídricos, Avda. Vicente Mendez #595, Chile, Camilo Ignacio Souto, Universidad de Concepción Avda, Departamento de Recursos Hídricos, Vicente Mendez #595, Chile and Surendra K. Dara, Division of Agriculture and Natural Resources University of California Cooperative Extension, San Luis Obispo, CA, United States