1. Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, 5403 1st Avenue South, Lethbridge, AB T1J 4B1, Canada
2. Department of Plant Science, University of Manitoba, 66 Dafoe Road, Winnipeg, MB R3T 2N2, Canada
3. Agriculture and Agri-Food Canada, Lacombe Research and Development Centre, 6000 C and E Trail, Lacombe, AB T4L 1W1, Canada
4. Alberta Agriculture and Forestry, Crop Diversification Centre S, 301 Horticultural Stn Rd E, Brooks, AB T1R 1E6, Canada
5. Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
6. Department of Plant Agriculture, University of Guelph, Ridgetown Campus, 120 Main St. E., Ridgetown, ON N0P 2C0, Canada