ABSTRACT
Cereals differ in the physical properties of the grain. There are large differences among different genera and smaller differences among types within species. The environment and management during storage also affects physical characteristics. The main criteria used to select grains for specific uses are related to their physical properties because they affect chemical composition, functionality, and optimum end use. Wheat is the cereal with the most elaborate grading system because of the large differences in functionality among the three major classes.
