VARIETAL SUSCEPTIBILITY OF OATS TO SMUTS 
19 
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. 
Var. praegravis, S.N. 13 «. 
77 
132 
44 
89 
139 
391 
37 
36 
36 
3 
26 
31 
80 
16 
46.7 
27.2 
6.8 
29.2 
22.3 
20.4 
43.2 
71 
137 
85 
115 
114 
165 
55 
106 
67 
244 
96 
148 
110 
85 
65 
207 
96 
111 
68 
36 
39 
12 
6 
38 
60 
10 
61 
33 
43 
11 
81 
6 
26 
16 
12 
2 
6 
3 
50 7 
28 4 
Columbia, 1920 
Ames, 1920 
14.1 
5.1 
Var. praegravis, S. N. 61, 
C.I. 1774. 
Aberdeen, 1919 
Aberdeen, 1920... 
Manhattan, 1920 
Pullman, 1920 
33.3 
36.3 
18.1 
57.5 
Var. praegravis, S. N. 62„ 
.Brooklyn, 1921 
Columbia © ©.. 
{Ames, 1919 . 
103 
143 
71 
148 
45 
78 
110 
224 
91 
49 
37 
39 
69 
1 
11 
28 
11 
21 
47.5 
25.8 
54.9 
46.6 
2.2 
14.1 
25.4 
4.9 
23.0 
49.2 
17.6 
11.4 
Aberdeen, 1920 
Columbia, 1920 
Ames, 1920 
54.7 
5.4 
30 5 
Var. praegravis, S. N. 63, 
C.I. 1775. 
Aberdeen, 1919 
Aberdeen, 1920 
Manhattan, 1920 
Pullman, 1920 
24.6 
5.7 
2.0 
5.4 
Brooklyn, 1921 
Aberdeen, 1920. 
Brooklyn, 1921 
Brooklyn, 1922. 
/Aberdeen, 1920 
I Brooklyn, 1921 
Columbia, 1920 
Ames, 1919 .- 
100 
98 
208 
101 
78 
89 
43 
180 
118 
106 
373 
282 
18 
2 
7 

40 
69 
1 
5 
2 
10 
13 
21 
18.0 
2.0 
3.3 

51.2 
77.5 
2.3 
2.7 
1.6 
9.4 
3.4 
7.4 
4.4 
Pringle Progress, S. N. 
218, C.I. 1717. 
Probsteier, S. N. 219, C. I. 
1655. 
141 
124 
3 
3 
2.1 
2.4 
63 
90 
182 
188 
142 
313 
244 
121 
198 
70 
84 
123 
133 
71 
74 
135 
85 
7 
46 
39 

8 
10 
21 
25 
10 
14 
1 
1 
4 
1 
1 
1 



10 
61.9 

3.8 
Ames, 1920 
4.2 
Richland, S.N. 281, C.I. 
787. 
Aberdeen, 1919 
Aberdeen, 1920 
Manhattan, 1920 
Pullman, 1920 
7.0 
6.7 
10.2 
8.3 
.Brooklyn, 1921... 
Columbia, 1920 
Ames, 1920 
272 
50 
102 
117 
238 
84 
35 
2 
15 
34 
63 
27 
12.8 
4.0 
14.7 
29.0 
26.4 
32.1 
7.0 
1.4 
1.1 
Rossman, S.N. 322, C.I. 
1688 (closely resembles 
Irish Victor) . 
Ruakura Rustproof, S.N. 
266, C.I. 701. 
Aberdeen, 1919 
Aberdeen, 1920.- 
Manhattan, 1920 
Pullman, 1920... 
3.2 
.7 
1.4 
1 4 
Brooklyn, 1921.. 
Brooklyn, 1922 
Columbia, 1920.. 
Ames, 1920.. 
203 
59 
13 
47 
47 
114 
124 
70 
78 
109 
66 
178 
86 
90 
1 

6 
14 
45 
19 
1 
4 
2 
8 
9 
24 
44.3 
1.6 

12.7 
29.7 
39.4 
15.3 
1.4 
5.1 
1.8 
12.1 
5.0 
27.9 



21.7 
Aberdeen, 1920. 
Brooklyn, 1921 
71 
106 
70 
96 
82 
36 
112 
46 
111 
153 
75 
324 
47 
62 
68 
89 
109 
88 
117 
113 
61 
74 
83 
12 
6 

1 
3 



1 


32 



16 
21 
12 
26 
52 
16 
36 
18 
16.9 
5.6 
Columbia, 1920 
Ames, 1919.. 

1.0 
Ames, 1920 
3.6 
Scottish Chief, S. N. 124, 
C.I. 1901. 
Aberdeen, 1919 
Aberdeen, 1920 
Manhattan, 1920 
Pullman, 1920 



.9 
Var. setosa, S. N. 14 
Brooklyn, 1921 
Brooklyn, 1922 
Columbia © © 
Aberdeen, 1920 
Brooklvn, 1921 
Brooklyn, 1922 
Columbia, 1920 
Ames, 1919 
204 
78 
242 
17 
92 
72 
60 
126 
94 
108 
195 
55 
17 

32 

1 

2 
15 
13 
14 
71 
20 
8.3 

13.2 

1.0 

3.3 
11.9 
13.8 
12.9 
36.4 
36.3 


9.8 



17.9 
19.2 
Siberian, S. N. 282, C. I. 
741 (closely resembles 
Lincoln) . 
Ames, 1920 
. Aberdeen, 1919. 
Aberdeen, 1920 
Manhattan, 1920 
Pullman, 1920.. 
13.6 
22.2 
46.0 
26.2 
48.6 
Brooklyn, 1921 
119 
34 
28.5 
2L6 
« Nos. 13, 61, 62, and 63, received from Doctor Bub6k, represent types from different localities. 
