1. Federal College and Research Institute for Viticulture and Pomology Klosterneuburg Klosterneuburg Austria
2. Austrian Institute of Technology Tulln Austria
3. Genlogs Biodiagnostics Ltd Budapest Hungary
4. NÖ Landes‐Landwirtschaftskammer, Referat Obstbau St. Pölten Austria
5. Gartenbauschule Langenlois Austria
6. Wein‐ und Obstbauschule Krems Krems Austria
7. Hungarian Horticultural Propagation Material Non‐Profit Ltd. Érd Hungary