1. Department of Horticultural Science, Faculty of Agriculture, Urmia University, Urmia, Iran
2. Department of Horticultural Science, School of Agriculture, Shiraz University, Shiraz, Iran
3. Department of Soil Science, Faculty of Agriculture, Urmia University, Urmia, Iran
4. Horticultural Sciences Department, University of Florida, Gainesville, Florida, USA
5. School of Plant Sciences, College of Agriculture and Life Sciences, The University of Arizona, Tucson, Arizona, USA