1. Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, 850 Lincoln Road, Fredericton, New Brunswick, E3B 4Z7, Canada
2. Department of Environmental Sciences, Dalhousie University, Agricultural Campus, PO Box 550, Truro, Nova Scotia, B2N 5E3, Canada
3. Québec Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Boulevard, Québec, Québec, G1V 2J3, Canada