1. Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB, Canada, R3T 5V6.
2. Corresponding author. E-mail: digvir_jayas@umanitoba.ca. Phone: 204-474-6860. Fax: 204-474-7568.
3. Agriculture and Agri-Food Canada, Cereal Research Centre, Winnipeg, MB, Canada, R3T 2M9.