146 
Journal of Agricultural Research 
Vol. XI, No. 4 
ERECT- AND DECLINING-EAR STRAINS 
(9) Taken as a whole, there are no significant differences in these 
two strains with respect to the characters considered. In view of the 
suggestion that ears are declining because of their greater weight, it is a 
fact of special interest that the declining ears are not on the whole 
heavier than erect ears. 
HIGH- AND EOW-EAR STRAINS 
(10) The ears of the low-ear strain are on the whole significantly 
larger in mean length, circumference, and weight than those of the 
high-ear strain, but there are a few exceptions. In each of the eight 
years considered the mean number of rows of kernels on ears is larger 
for the low-ear strain than for the high-ear strain. 
(11) The standard deviation of number of rows of kernels in each 
year is distinctly greater for the low ears than for the high ears, and the 
standard deviation of circumstance of ears is in general larger for the 
low-ear strain than for the high-ear strain. 
