48 Nebraska Agricultural Exp. Station Research Bul. 16 
Table 1*2 — Effect of exposure to ranges of freezing temperature 
for different periods of time on the germination of corn 
differing in moisture content. All ears icere protected 
naturally by the husks (1915) 
Moisture 
range 
Duration 
of 
exposure 
Minimum 
tempera- 
ture 
Mois- 
ture in 
grain 
Germ- 
ination 
Ice observed 
in grain 
Embryos dark 
or light 
Per cent 
Hours 
Degrees F. 
Per 
Per 
cent 
cent 
75 to 80 
4 
24 
77 A 
92 
* 
Light and dark 
6 
32 
76.4 
100 
* 
Light 
70 to 75 
6 
32 
71.6 
100 
* 
Light and dark 
65 to 70 
12 
28 
67.6 
83 
* 
Dark 
( 2 
32 
62.5 
100 
* 
Light 
60 to 65 
4 
30 
61.5 
100 
* 
Light and dark 
< 
4 
28 
60.7 
100 
* 
Light 
I 12 
28 
64.4 
93 
* 
Light and dark 
4 
30 
59.7 
100 
* 
Light and dark 
4 
28 
55.9 
100 
* 
Light 
4 
14 
57.8 
75 
Ice 
Light 
55 to 60 
8 
23 
55.5 
100 
Ice in some kernels 
Light 
8 
18 
58.8 
50 
Ice 
Light and dark 
8 
3 
56.7 
8 
Ice 
Dark 
10 
14 
58.4 
19 
Ice 
Dark 
15 
25 
56.1 
92 
Ice in some kernels 
Light and dark 
2 
32 
54.5 
100 
* 
Light 
4 
24 
50.5 
100 
* 
Light and dark 
6 
16 
51.2 
25 
Ice 
Light and dark 
50 to 55 
8 
23 
52.5 
100 
* 
Dark 
10 
23 
51.4 
91 
Ice in some kernels 
Light 
10 
14 
53.2 
67 
Ice 
Light 
10 
3 
52. ! 
0 
Ice 
Dark 
o 
23 
49.5 
100 
* 
Light 
2 
10 
45.9 
85 
* 
Light and dark 
4 
14 
45.6 
75 
Ice 
Light and dark 
45 to 50 
6 
23 
48.7 
100 
* 
Light 
8 
23 
47.8 
too 
Ice in some kernels 
Light and dark 
15 
25 
48.5 
100 
Ice in some kernels 
Light 
32 
25 
47.9 
75 
Ice in some kernels 
Light and dark 
