1. NBR, Nordic Beet Research Foundation, Bjärred, Sweden
2. SLU, Swedish University of Agricultural Sciences, Alnarp, Sweden
3. IRBAB-KBIVB, Institut Royal Belge pour l’Amélioration de la Betterave, Tienen, Belgium
4. IRS, Institute of Sugar Beet Research, Dinteloord, The Netherlands
5. IfZ, Institut für Zuckerrübenforschung, Göttingen, Germany