Freezing Injury or Seed Corn 
35 
Table 5 (Continued) — Effect of freezing temperature on ger- 
mination of corn differing in moisture content (1913 and 191 If) 
Temperature range 32 ° to 28° F. 
Germination 
Ice 
Moisture 
Embryos dark 
Moisture 
Ratio 
of normal \ 
observed 
range 
in grain 
Normal 
Frozen ' 
in grain 
or light 
grain 
gram 
to frozen 
Per cent 
Per cent 
Per cent 
Per cent 
45.8 
100 
100 
100:100 ; 
❖ 
44.1 
100 
100 
100:100 
* 
* 
40 to 45 . . 
44.1 
100 
40 
100:40 
* 
Dark 
44.0 
100 
40 
100:40 
* 
Dark 
42.4 
75 
50 
100:67 
None 
Light 
Average. . 
44.1 
95 
66.0 
100:69 
39.5 
100 
55 
100:55 
* 
Light 
38.9 
100 
20 
100:20 
* 
Dark 
38.7 
60 
60 
100:100 
* 
Light 
38.6 
100 
50 
100:50 
* 
* 
37.1 
100 
58 
100:58 
* 
Light 
35 to 40. . 
36.3 
100 
80 
100:80 
* 
Light 
36.1 
100 
85 
100:85 
None 
Light 
35.9 
100 
87 
100:87 
None 
Light 
35.8 
100 
100 
100:100 
* 
Light 
35.6 
100 
100 
100:100 
* 
* 
35.1 
100 
100 
100:100 
* 
Light 
Average . . 
37.1 
96.4 
65 
100:71 
f 33.7 
100 
100 
100:100 
* 
* 
30 to 35 . . 
< 
1 33.1 
90 
35 
100:39 
None 
Light 
! 30.6 
100 
100 
100:100 
* 
! Light 
( 30.3 
100 
60 
100:60 
* 
Dark and light 
Average. . 
31.9 
97.5 
73.8 
100:75 
. 
f 28.3 
100 
100 
100:100 
* 
* 
28.2 
100 
80 
j 100:80 
* 
Light 
28.1 
60 
60 
1 100:100 
* 
Dark 
25 to 30. . 
< 
27.8 
1 27.3 
100 
100 
100 
87 
100:100 
! 100:87 
* 
None 
Light 
Light 
Light 
27.3 
80 
80 
100:100 
* 
26.4 
100 
20 
100:20 
* 
Dark and light 
25.7 
100 
100 
| 100:100 
* 
Light 
Average . . 
27.4 
92.5 
78.4 
100:85 
*No observations made. 
