Andre Luiz da Silva, Department of Horticulture, University of Georgia-Tifton, Tifton, GA, Lincoln Zotarelli, Horticultural Sciences Department, University of Florida, Gainesville, FL, Michael Dukes, Agricultural & Biological Engineering Department, University of Florida, Gainesville, FL, Senthold Asseng, 221 Frazier Rogers Hall, PO Box 110570, University of Florida, Gainesville, FL, Shinsuke Agehara, Horticultural Science Department, University of Florida, Gainesville, FL and Edzard van Santen, Agronomy Department, University of Florida, Gainesville, FL