1. USDA ARS, Grain Marketing and Production Research Center, Engineering Research Unit, 1515 College Avenue, Manhattan, KS 66502. Names are necessary to report factually on available data; however, the USDA neither guarantees nor warrants the standard of the product, and the use of the name by the USDA implies no approval of the product to the exclusion of others that may also be suitable.
2. Kansas State University, Department of Grain Science and Industry, Manhattan, KS 66506.
3. USDA ARS, Grain Marketing and Production Research Center, Grain Quality and Structure Research Unit, 1515 College Avenue, Manhattan, KS 66502.
4. USDA, Grain Inspection, Packers, and Stockyards Administration, Federal Grain Inspection Service, Kansas City, MO 64163.
5. Corresponding author. Phone: 785-776-2753. Fax: 785-537-5550. E-mail: floyd.dowell@gmprc.ksu.edu