Συνέδρια Word ISVG II International Symposium on Vegetable Grafting, 18-18 July, Charlotte, North Caroline, USA Word Cucurbits 6th International Symposium on Cucurbits, 30 June- 4 July, Ghent, Belgium Word Greensys2019 GreenSys 2019 – International symposium on advanced technologies and management for innovative greenhouses, 16-20 June, Angers, France