Off-types or mixtures can be identified by offtypes or mixtures can be identified by comparing their characteristics to those of the dominant plant population in the field.
Plants may differ in height, color of leaf blades and leafsheaths, panicle exsertion, flagleaf angle, and size, shape and color of grains.
Plants that are taller or shorter than the rest of the plants are considered offtypes.
Plants with earlier or later panicle emergence than the dominant population are offtypes.
If most of the panicles have short grains, those with long grains are offtypes. If bold grains are dominant, then slender grains are off-types.
