26 
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 
Species, variety, and strain 
of oats 
Station and year 
Plants from seeds inoculated with- 
Ustilago avenae 
Total 
num- 
ber 
Infected 
Num- 
ber 
Per 
cent 
Ustilago levis 
Total 
num- 
ber 
Infected 
Num- 
ber 
Per 
cent 
Avena sterilis: 
S. N. 27... 
S.N. 28. 
S.N. 128. 
S. N.252, C.I. 1784 (Ar- 
lington selection). 
Black Algerian, S. N. 261, 
C. I. 1785. 
Burt, S. N. 67. 
Burt (Early Ripe), S. N. 
74. 
Burt. S. N. 75. 
Burt, S. N. 175. 
Burt, 8. N. 253, 0. I. 823 
/Columbia © 
\Aberdeen, 1920 
"Columbia © ®... 
Columbia, 1920.... 
Ames, 1919. 
Ames, 1920 
Aberdeen, 1919 
Aberdeen, 1920 
Manhattan, 1920.. 
Pullman, 1920 
v Brooklyn, 1921../. 
/Aberdeen, 1920 
\Brooklyn, 1921 
Aberdeen, 1920 
Aberdeen, 1920. .. 
Brooklyn, 1921... 
Brooklyn, 1922... 
Columbia ©®... 
Columbia, 1920... 
Ames, 1919 
Ames, 1920. 
Aberdeen, 1919... 
Aberdeen, 1920... 
Manhattan, 1920. 
Pullman, 1920.... 
Brooklyn, 1921. .. 
Brooklyn, 1922... 
Columbia® ©... 
Columbia, 1920— 
Ames, 1919 
Ames, 1920 
Aberdeen, 1919... 
Aberdeen, 1920... 
Manhattan, 1920. 
Pullman, 1920 
Brooklyn, 1921... 
Brooklyn, 1922... 
Columbia© ©.. 
Columbia, 1920. _ 
Ames, 1919 
Ames, 1920 
Aberdeen, 1919... 
Aberdeen, 1920... 
Manhattan, 1920. 
Pullman, 1920.... 
Brooklyn, 1921... 
Brooklyn, 1922... 
Columbia© 
Columbia, 1920. . 
Ames, 1920 
Aberdeen, 1919 
Aberdeen, 1920... 
Manhattan, 1920. 
Pullman, 1920 
Brooklyn, 1921... 
Brooklyn, 1922... 
Columbia® 
Columbia, 1920. _ 
Ames, 1919 
Ames, 1920 
Aberdeen, 1919... 
Aberdeen, 1920... 
Manhattan, 1920. 
Pullman, 1920 . 
Brooklyn, 1921 ... 
Brooklyn, 1922... 
125 
16 
201 
66 
245 
72 
85 
111 
43 
74 
20 
49 
35 
85 
58 
59 
881 
70 
196 
62 
240 
155 
116 
153 
60 
680 
62 
225 
116 
333 
206 
187 
67 
89 
752 
29 
153 
95 
238 
184 
109 
70 
31 
16G 
495 
63 
304 
697 
492 
405 
142 
146 
76 
622 
328 
425 
580 
"n 
3C8 
2 

151 
4 
24 
7 
118 
18 
22 
14.4 
56.2 
1.4 
6.0 
15.9 
5.5 
32.9 
8.1 
9.3 
10.8 
5.0 
2.0 
57.1 


1.6 
1.4 

1.0 
1.6 
5.0 

2.5 
1.3 

22.2 
6.4 
10.6 
6.0 
35.4 
8.7 
11.7 
13.4 

6.6 
3.4 
5.2 
7.3 
17.6 
3.8 
11.0 
1.0 

3.5 
.6 

.3 

.4 
1.8 
185 
64 
181 
47 
98 
120 
46 
58 
542 
70 
297 
69 
258 
111 
155 
69 
104 
73 
311 
106 
197 
107 
342 
125 
153 
119 
70 
104 
447 
65 
193 
80 
258 
95 
148 
84 
57 
68 
36 
190 
418 
28 
170 
650 
186 
407 
413 
202 
135 
101 
592 
298 
423 
533 
270 
54 
482 
13.7 

1.5 
3.8 
10.6 
36.7 
16.8 
3.0 


.5 
5.7 
.6 

2.3 





7.0 
12.2 
. 5 
1.8 
18.7 

3.9 


1.9 
3.8 
3.1 

10.0 
10.4 

2.7 
5.9 
1.7 
4.4 


.4 

2.9 


# 2 

1.9 


. 5 
.6 
2.6 
.7 


2.8 
