134 Nebraska Agricultural Exy. Station , Research Bui. 20 
Dent corn which might possibly be related to the susceptibility to 
or presence of disease are correlated in Table 56 with the disease 
readings obtained in the germinator test. Since the ear type 
and disease readings were made entirely independently of each 
other, and the ears w^ere arranged in order by random selection, 
we may assume that the likelihood of systematic errors was 
eliminated. 
Classified according to roughness, the rough, medium, and 
smooth ears had respectively 49, 55, and 63 per cent of their 
kernels disease free, while 23, 19, and 12 per cent of the kernels 
respectively were diseased and rotting. Of the rough, medium, 
and smooth ears, 8, 13, and 19 per cent respectively were disease 
free, while 14, 8, and 4 per cent respectively had all of their 
kernels diseased. Some correlation between degree of roughness 
and disease is apparent. 
Classified according to color of shank, ears with yellow, pink, 
brown, and normal colored shanks had respectively 75, 66, 49, 
and 61 per cent disease free kernels, while 14, 10, 24, and 15 per 
cent of the kernels were respectively diseased and rotting. 
Of the ears with yellow, pink, brown, and normal colored 
shanks, 28, 18, 8, and 18 per cent respectively had no diseased 
kernels, while 0, 3, 9, and 7 per cent respectively had all of their 
kernels diseased. Brown shank discoloration appears to be 
somewhat indicative of disease. The pinkish and -yellowish 
shank colorations noted in these tests were not indicative of 
disease. 
Classified according to soundness of shank, ears with sound, 
split, and shredded shanks had respectively 57, 60, and 60 per 
cent of their kernels disease free, while 17, 16, and 17 per cent 
of the kernels respectively were diseased and rotting. 
Of the ears with sound, split, and shredded shanks, 14, 17, 
and 4 per cent respectively had no diseased kernels, while 8, 8, 
and 2 per cent respectively had all kernels diseased. 
A lower per cent of ears with shredded shanks appear to be 
entirely disease free than in the case of split or sound shanks. 
Classified according to lustre of germ, ears having bright, 
medium, and dull germs had respectively 57, 59, and 49 per cent 
of their kernels disease free, while 17, 17, and 19 per cent of the 
kernels respectively were diseased and rotting. 
Of the ears with bright, medium, and dull germs, 16, 12, and 
12 per cent respectively had no diseased kernels, while 8, 5, and 
16 per cent respectively had only diseased kernels. 
Classified according to “starchiness,” ears with hornv. 
