1. Agriculture and Agri-Food Canada, Cereal Research Centre, Winnipeg, MB, Canada R3T 2M9.
2. Corresponding author. E-mail: names@em.agr.ca. Phone: 204-983-1461 Fax: 204-983-4604.
3. Agriculture and Agri-Food Canada, Semi-Arid Prairie Agricultural Research Centre, Swift Current, SK, Canada S9H 3X2.
4. Canadian Grain Commission, Grain Research Laboratory, Winnipeg, MB, Canada R3C 3G8.