1. Triangle Research and Development Center, Kfar-Qari, Israel
2. Institute of Agricultural Engineering, Agricultural Research Organization, The Volcani Center, Rishon LeZion, Israel
3. Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
4. Department of Vegetable and Field Crop Research, Gilat Research Center, Agricultural Research Organization, Negev, Israel
5. Department of Biosystems Engineering, The University of Arizona, Tucson, AZ, USA