Freezing Injury or Seed Corn 
51 
Table 13 (Continued) — Summary showing effect of length of 
exposure and degree of cold on the vitality of corn varying 
in moisture content (1915) 
Moisture 
Minimum 
Min 'mum 
Minimum 
Minimum 
Minimum 
Duration 
tempera- 
tempera- 
tempera- 
tempera- 
tempera- 
in grain 
ture 26 °F. 
ture 18 °F. 
ture 10 °F. 
ture 2°F. 
ture — 5°F. 
Per cent 
Hours 
Germination Germination 
Germination 
Germination 
Germination 
Per cent 
Per cent 
Per cent 
Per cent 
Per cent 
2 
100 
92 
4 
100 
‘45 
6 
100 
50 
50 
30 to 40 
8 
10 
100 
47 
8 
12 
83 
13 
15 
[ 24 
‘72 
40 
’ '7 ' 
’ 0 
0 
r 2 
100 
100 
4 
100 
'92 
6 
100 
\ . . 
20 to 30 
8 
10 
12 
100 
42 
15 
• ... 
V 24 
90 
‘83 
‘64 
28 
0 
f 2 
4 
100 
6 
10 to 20 
8 
10 
100 
92 
12 
15 
. . . 
, 24 
100 
100 
1 
*99 
I 
77 
this corn before being exposed to the freezing temperatures, and 
the minimum temperatures were not exactly the same, yet it was 
thought that owing to the length of the freezing period both 
,the husked and the unhusked corn would be affected in prac- 
tically the same way. This is the reason for including the data 
for the 24-hour period in this table. 
