Freezing Injury of Seed Corn 55 
Table 16 — Germinative ability of corn 'which varied in degree 
of maturity and which was exposed in the field to the 
freezing temperatures of autumn. The degree of maturity is 
indicated by the moisture content of the grain. Corn har- 
vested October 30 , 1913? 
Moisture range 
Moisture 
in grain 
Germination 
Embryos dark 
or light 
Per cent 
Per cent 
Per cent 
f 39.7 
0 
Dark 
• 
39.7 
0 
Dark 
35 to 40 
' 
39.4 
37.0 
0 
0 
Dark 
Dark 
36.9 
20 
Dark 
35.7 
0 
Dark 
Average 
38.1 
3 
f 34.3 
40 
Light 
34.1 
0 
Dark 
30 to 35 
< 
33.5 
20 
Dark 
32.9 
60 
Light 
32.3 
0 
Dark 
Average 
33.4 
24 
30.0 
20 
Medium dark 
29.8 
0 
Dark 
27.7 
40 
Light 
25 to 30 
27.6 
100 
Light 
27.1 
60 
Dark and light 
26.7 
80 
Light 
, 26.4 
0 
Dark 
Average 
27.9 
43 
. 
r 24.4 
100 
Light 
23.9 
80 
Light 
20 to 25 
23.2 
80 
Light 
22.7 
100 
Light 
22.3 
100 
Light 
21.2 
100 
Light 
Average 
23.0 
93 
1 
20.0 
100 
Light 
15 to 20 
19.4 
100 
Light 
1 
15.3 
100 
Light 
1 
15.3 
100 
Light 
Average 
17.5 
100 
10 to 15 
j 
14.2 
100 
Light 
t 
14.1 
100 
Light 
Average 
14.2 
100 
1 See Tables 17 and 18 for freezing temperatures prior to October 30. 
