1. Norwegian University of Life Sciences (NMBU), Faculty of Biosciences, Department of Plant Sciences, Ås, Norway
2. Norwegian Institute of Bioeconomy Research (NIBIO), Division of Biotechnology and Plant Health, Ås, Norway
3. Department of Crop Production Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
4. Norwegian University of Life Sciences (NMBU), Faculty of Environmental Sciences and Natural Resource Management (MINA), Ås, Norway
5. Aarhus University, Faculty of Technical Sciences, Department of Agroecology, Research Centre Flakkebjerg, Slagelse, Denmark