H. D. WAGGONER 
The Effect of High Temperatures upon Radish Seeds of Known Initial Water Content 
Table I. Icicle Radish 
50° 
55° 
60° 
65° 
70° 
75° 
80° 
85° 
90° 
95° 
100° 
105° 
110° 
"5° 
120° 
123° 
125° 
Check 
Percent of germination: 
With 71% water present 
" 50% " 
80% 
45 
0 
87 
88 
83% 
50 
0 
" 45% " 
84% 
69 
0 
87 
" 38% " 
87% 
72 
14 
0 
89 
" 30% " 
74 
25 
0 
90 
" 23% " 
74 
38 
I 
0 
90 
" 18% " 
78 
66 
38 
0 
88 
" 14% " 
85 
74 
69 
63 
26 
18 
6 
0 
89 
" 9% " 
88 
82 
85 
74 
54 
36 
15 
10 
0 
90 
" 4% " 
86 
91 
90 
91 
82 
79 
76 
40 
0 
0 
89 
" 2.3% " 
89 
88 
87 
90 
87 
80 
72 
57 
5 
0 
88 
" 1.3% " 
90 
89 
88 
82 
73 
67 
32 
4 
0 
89 
" .8% " 
89 
88 
85 
76 
62 
32 
0 
0 
89 
" .4% " 
90 
86 
78 
64 
28 
14 
0 
90 
Table II. Black Spanish Winter Radish 
Temperatures Employed 
50° 
55° 
60° 
65° 
70" 
75° 
80° 
85° 
90° 
95° 
100° 
Check 
Percent of germination: 
With 71% water present 67% 
" 50% " " :69% 
43 
0 
88 
52 
0 
90 
45% " 
80% 
53 
0 
90 
" 38% " 
85% 
56 
7 
0 
87 
" 30% " 
62 
46 
0 
87 
" 23% " 
73 
67 
10 
0 
0 
90 
" 18% " 
" 14% " 
76 
78 
37 
21 
I 
0 
0 
88 
85 
86 
78 
49 
37 
33 
26 
0 
0 
90 
" 9% " 
87 
88 
86 
67 
55 
50 
38 
7 
0 
0 
88 
" 4% " 
90 
90 
87 
88 
82 
77 
66 
38 
0 
89 
Table III. Dreer's Crystal Forcing Radish 
Temperatures Employed 
50° 
55° 
60° 
65° 
70° 
75° 
80° 
85° 
90° 
95° 
Check 
Percent of germination: 
With 71% water present 
" 50% " 
87% 
60 
0 
93 
89% 66 
0 
92 
" 45% " 
92% 
66 
0 
90 
" 38% " 
93% 
71 
I 
0 
90 
" 30% 
75 
24 
0 
89 
" 23% " 
83 
74 
26 
0 
0 
90 
- 18% " 
85 
81 
66 
19 
10 
0 
0 
0 
89 
" 14% 
" 9% " 
91 
84 
80 
68 
47 
39 
13 
3 
0 
92 
91 
93 
91 
83 
74 
64 
56 
28 
0 
0 
89 
" 4% " 
91 
90 
91 
94 
88 
86 
74 
25 
0 
88 
