1. Department of Natural Resource Sciences, Macdonald Campus, McGill University, 21,111 Lakeshore Road, Sainte‐Anne‐de‐Bellevue, Quebec, H9X 3V9, Canada.
2. Environmental and Resource Studies Program, Trent University, 1600 West Bank Drive, Peterborough, Ontario, K9J 7B8, Canada.
3. Agriculture and Agri‐Food Canada, Soils and Crops Research and Development Centre, 2560 Hochelaga Boulevard, Québec, Québec, G1V 2J3, Canada.
4. Agriculture and Agri‐Food Canada, Potato Research Centre, 850 Lincoln Road, P.O. Box 20280, Fredericton, New Brunswick, E3B 4Z7, Canada.