Jeffrey W. White1, Heidi Webber2, Bruce A. Kimball3, Frank Ewert4, Senthold Asseng5, Ehsan E Rezaei6, Paul J Pinter7, Jerry L. Hatfield8, Matthew Reynolds9, Behnam Ababaei10, Marco Bindi11, Jordi Doltra12, Roberto Ferrise11, Henning Kage13, Belay T. Kassie14, Kurt C. Kersebaum15, Adam Luig16, Jorgen Eivind Olesen17, Mikhail Semenov18, Pierre Stratonovitch18, Arne M Ratjen16 and Pierre Martre19, (1)University of Florida, Chandler, AZ, US, (2)Institute of Crop Science and Resource Conservation (INRES), University of Bonn, Bonn, Germany, (3)USDA-ARS, Phoenix, AZ, US, (4)University of Bonn, Bonn, Germany, (5)221 Frazier Rogers Hall, PO Box 110570, University of Florida, Gainesville, FL, (6)INRES Pflanzenbau, University of Bonn, Bonn, Germany, (7)ALARC, USDA-ARS (retired), Maricopa, AZ, (8)National Laboratory for Agriculture and the Environment, Agriculture Research Service, USDA-ARS, Ames, IA, (9)Wheat Physiology, CIMMYT, Texcoco, EM, Mexico, (10)Montpellier SupAgro, UMR LEPSE, INRA, Montpellier, France, (11)University of Florence, Florence, Italy, (12)Cantabrian Agricultural Research and Training Centre, Muriedas, Spain, (13)Institute for Crop Science and Plant Breeding, Kiel University, Kiel, Germany, (14)Agricultural and Biological Engineering, University of Florida, Gainesville, FL, (15)Research Platform Models and Simulation, ZALF - Leibniz Centre for Agricultural Landscape Research, Muencheberg, GERMANY, (16)Institute of Crop Science and Plant Breeding - Agronomy and Crop Science, Christian-Albrechts-University, Kiel, Germany, (17)Aarhus University, Tjele, DENMARK, (18)Rothamsted Research, Harpenden, England, (19)INRA, Montpellier, France