Abstract
1) Chafing of hulls was severe on the upper branches of a panicle and on the inferior grains on a branch. 2) The close correlations were found between the degree of chafing and discoloration of hulls, and between the degree of discoloration of hulls and the degree of injury in kernels contained. Yet, even if the degree of chafing was the same, the younger the grain, the severer were both discoloration of hull and injury in kernel.
