18 
BULLETIN 1275, U. S. DEPARTMENT OF AGRICULTURE 
Table 2. — Results of inoculating seed of varieties and strains of different species 
of Avena with spores of Ustilago avenae and U. levis at the stations and in the 
years indicated — Continued 
Station and year 
Plants from seeds inoculated with— 
Species, variety, and strain 
of oats 
Ustilago avenae 
Ustilago levis 
Total 
num- 
ber 
Infected 
Total 
num- 
ber 
Infected 
Num- 
ber 
Per 
cent 
Num- 
ber 
Per 
cent 
Avena sativa— Continued. 
228 
71 
141 
40 
109 
46 
161 
29 
220 
7 
88 
33 
109 
12 
171 
23 
157 
29 
56 
94 
43 
404 
84 
210 
66 
96 
75 
206 
53 
62 
8 
16 
11 
46 
9 
41 
6 
63 
5 
24 
13 
37 
5 
20 
8 
25 
9 
2 
17 
5 
70 
19 
74 
3 
2 
5 
14 
8 
27.1 
11.2 
11.3 
27.5 
42.2 
19.5 
25.4 
20.7 
28.6 
71.4 
27.2 
39.3 
33.0 
41.6 
11.6 
34.7 
15.9 
31.0 
3.5 
18.0 
11.6 
17.3 
22.6 
35.2 
4.5 
2.0 
6.6 
6.7 
15.0 
196 
73 
106 
29 
114 
48 
117 
35 
78 
26 
5 
9 
1 
26 
12 
51 
9 
28 
13 2 
J Ames, 1919. . 
6 8 
Var. mutica, S. N. 52 
lAberdeen, 1920 
[Manhattan, 1920 
8.4 
3.4 
22 8 
Var. mutica, S. N. 53 
Var. mutica, S. N. 54 
JAmes, 1919 
25 
lAberdeen, 1920. 
IManhattan, 1920 
/Columbia®® 
\Aberdeen, 1920 
/Columbia © 
43.5 
25.7 
35.8 
Var. mutica, S. N. 55 
84 
19 
22.6 
lAberdeen, 1920 
/Columbia®® 
lAberdeen, 1920 
Var. mutica, S. N. 56 
103 
33 
32.0 
Var. mutica, S. N. 57 
126 
12 
9 5 
lAberdeen, 1920 
/Columbia®. .. . . . 
Var. mutica, S. N. 58 
146 
49 
33 5 
\Aberdeen, 1920 
Columbia, 1920 
Ames, 1920 
Aberdeen, 1919 
Aberdeen, 1920 
Manhattan, 1920 
Brooklyn, 1921 
Columbia, 1920 
Ames, 1920 
Var. mutica, S. N. 286, 
C.I. 1675. 
66 
92 
56 
204 
107 
151 
75 
91 
94 
305 
96 
129 
174 
100 
178 
112 
93 
180 
137 
79 
189 
91 
235 
73 
3 
9 
10 
25 
17 
44 

1 
5 
8 
5 
6 
8 

3 
1 
2 

4 



3 
4.5 
9.7 
17.8 
12.2 
15.8 
29.1 

1 
Var. mutica, S. N. 331, 
C. I. 1716. 
Aberdeen, 1919 
Aberdeen, 1920 
Manhattan, 1920 
Pullman, 1920 
5.3 
2.6 
5.2 
4 7 
.Brooklyn, 1921 
Columbia, 1920 
Ames, 1919 
198 
50 
225 
112 
171 
248 
105 
56 

7 
10 
19 
24 
8 
28.2 

3.1 
8.9 
11.1 
9.6 
7.6 
4.5 

1 6 
Ames, 1920. . 
.8 
Nebraska No. 21, S. N. 
280, C. I. 841. 
Aberdeen, 1919 
Aberdeen, 1920 
Manhattan, 1920 
Pullman, 1920 
2.1 

2.9 

Brooklyn, 1921 
Brooklyn, 1922 
Columbia® 
Ames, 1919 
236 
88 
159 
59 
33 
171 
66 
175 
15 
68 
30 
97 
204 
55 
121 
98 
85 
307 
46 
26 

32 
6 

1 

14 
5 
6 
4 
45 
48 

26 
4 
16 
57 
12 
11.0 

20.1 
10.1 

.5 

8.0 
33.3 
8.8 
13.3 
46.3 
23.5 

21.4 
4.0 
18.8 
18.5 
26.0 


2.9 
4. 1 
Var. nigra, S.N. 12. 
Aberdeen, 1920 
Brooklyn, 1921 
Brooklyn, 1922 
(Columbia®© 
lAberdeen, 1920 
Columbia ® 
Var. nigra, S. N. 59 
167 
84 
141 






Var. nigra, S. N. 60 
Aberdeen, 1920 
Brooklyn, 1921 
76 
152 
99 
121 
86 
123 
166 
45 
98 
93 
33 
47 
13 
23 
17 
31 
13 
5 
22 
15 
43.4 
30.9 
Columbia, 1920 
Ames, 1919 
13.1 
19.0 
North Finnish, S. N. 123, 
C. I. 1882. 
Ames, 1920 .. 
19.7 
Aberdeen, 1919 
Aberdeen, 1920 
Manhattan, 1920 
Pullman, 1920 
25.2 
7.8 
11.1 
22 4 
North Finnish, S. N. 184, 
Brooklyn, 1921 .. 
(Aberdeen, 1920 
I Brooklyn, 1921 
(Aberdeen, 1920 
(Brooklyn, 1921. 
102 
81 
108 
96 
99 
56 
71 
130 
43 
105 
14 
14 
35 
43 
62 
5 
13 
49 
12 
58 
13.7 
17.2 
32.4 
44.7 
62.6 
8.9 
18.3 
37.6 
27. 9 
55.2 
16.1 
O.I. 1768. 
North Finnish, S.N. 216, 
60 
16 
26.6 
('. I. 1764. 
74 
09 
60 
17 
81.0 
24.0 
Old Island Black, S. N. 
Aberdeen, 1920 
[Brooklyn, 1921 
(Aberdeen, 1920 
I Brooklyn, 1921 
163. 
Old Island Black, S. X. 
95 
24 
25.2 
217, ('. 1. [766. 
93 
35 1 
37.6 
