1. Research Centre for Olive, Citrus and Tree Fruit (OFA) C.R.E.A. Council for Agricultural Research and Economics Caserta Italy
2. Research Centre for Vegetable and Ornamental Crops (OF) C.R.E.A. Council for Agricultural Research and Economics Sanremo Italy
3. Department of Agriculture, Food and Environment (DAFE) Università di Pisa Pisa Italy