1. Department of Plant Breeding and Biotechnology-Balsgård, Swedish University of Agricultural Sciences, Fjälkestadsvägen 459, SE-291 94 Kristianstad, Sweden
2. Department of Plant Breeding and Biotechnology, Swedish University of Agricultural Sciences, Box 101, SE-230 53 Alnarp, Sweden
3. Department of AgroSystems, Swedish University of Agricultural Sciences, Box 104, SE-230 53 Alnarp, Sweden