1. Saint-Jean-sur-Richelieu Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, J3B 3E6, Canada
2. Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 3B9, Canada
3. Department of Biological Science, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada
4. Prince Edward Island Potato Board, 90 Hillstrom Ave, Charlottetown, PE, C1E 2C6, Canada
5. Compagnie de recherche Phytodata, Sherrington, QC, J0L 2N0, Canada
6. Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, Fredericton, NB, E3B 4Z7, Canada
7. Department of Soil Science, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada