1. Graduate research assistant, Department of Cereal Science, North Dakota State University, Fargo, ND 58105. Present Address: Byrnes and Kiefer Co., Callery, PA 16066.
2. Research chemist, USDA-ARS Hard Red Spring/Durum Wheat Quality Laboratory, Fargo, ND 58105. Mention of vendor or proprietary product does not constitute a guarantee or warranty of the vendor or product by the USDA, and does not imply its approval to the exclusion of other vendors or products that may also be suitable.
3. Corresponding author. E-mail: lgrant@badlands.nodak.edu Fax: 701-239-1377.