24 
BULLETIN" 1299, U. S. DEPARTMENT OF AGRICULTURE 
Table 7. — Percentages of infected heads in miscellaneous selections and hybrids 
of American wheat varieties and a few foreign varieties at Davis, Calif., Moro, 
Or eg., and Pullman, Wash., in the years specified 
[S. P. I. = Office of Foreign Seed and Plant Introduction] 
C.I. 
No. 
Percentages of bunted heads 
Variety and synonyms 
Davis 
Calif. 
Moro, Oreg. 
Pullman, Wash. 
Average 
in all 
1920 
1921 
1919 
1920 
1919 
1920 
station 
years 
when 
grown 
Alaska X Jones Fife .. . . . ._ 
6682 
6136 
1698 
6135 
6181 
6180 
2506-1 
2507-1 
2507-2 
2508-2 
2511-2 
2511-3 
2511-5 
6193 
6194 
6195 
2203-2 
6179 
5272 
5157 
5159 
2683 
6158 
"6178" 
4346 
4349 
5877 
4963 
4104 
4114 
4.1 
55.5 
93.9 
82.0 
84.2 
87.1 
78.5 
63.5 
64.2 
83.2 
88.8 
76.7 
89.1 
82.9 
71.3 
86.1 
36.7 
91.9 
85.1 
85.8 
8S.0 
81.0 
72.2 
3.9 
14.8 
8.8 


.1 
80.6 

14.6 
68.1 
74.3 
65.7 
63.6 
58.9 
32.3 
24.5 
37.1 
51.9 
41.3 
40.6 
38.0 
43.5 
20.0 
18.7 
70.4 
3.2 
40.4 
43.2 
38.0 
49.2 






8.5 
2 1 
Allies 
35 1 
Allora 
81 
Aurore . _. 
2.5 
52.9 
Bluestem X Chul 
75 
Chul X Bluestem ... 
75.4 
Abyssinian wheat ....... . 
68. 7 
Do 
47.9 
Do 
44.4 
Do 
60.2 
Do 
70.4 
Do 
59.0 
Do 
64.9 
Persian wheat: 
S. P. I. No. 46592 
60. 5 
S. P. I. No. 46593 
57.4 
S. P. I. No. 46594 
53. 1 
Koola . . 
27.7 
Kustem _. . 
81.2 
Lebanon 
71.0 
99.0 
100.0 
72.3 
97.5 
80.0 
57.9 
Levan .. 
80. 7 
Do 
97.0 
73.5 
80.3 
Noe . . _ . 
59. 5 
Quantity.. ... .... ..... 
60.7 
Turkev X Hybrid 12S (Wash. No. 238) 
2.0 
Turkey X Hybrid 128 (Wash. No. 242) 
7.4 
Turkey X Hybrid 128 (Wash. No. 247) 
4.4 
Turkey Red X Florence (Wash. No. 330) 

Turkey Red X Florence (Wash. No. 332) . 

Turkey Red X Florence (Wash. No. 324). 
. 1 
Turkey X Jones Fife . 
44.6 
''Velvet Node" 
61.0 
95.0 
83.0 
76.0 
91.0 
56.1 
64.7 
64. 5 
Do 
95.1 
92.6 
36.4 
70.9 
90.9 
52.5 
42.5 
7.1 
34.2 
28.4 
83.4 
Do 
72. 7 
26.0 
54.5 
31.0 
(No name) .. . 
52.6 
Do 
59.7 
.. . ... 
Annual average 
63.6 
31.7 
84.8 
83.4 
45.4 
64.2 
49.4 
Two-year station average .. 
47 
.7 
811 
54.8 
RESISTANT WHEAT VARIETIES 
The extensive experiments on bunt resistance in commercial 
varieties of American wheats presented in Tables 1 to 4, inclusive, 
have shown a few varieties and selections to be either immune from 
or very resistant to the attacks of Tilletia tritici. As these have the 
promise of much economic importance, either for commercial pro- 
duction or for use as parents in breeding experiments, a brief account 
is given of each. 
These wheats belong to three of the five different commercial 
classes, namely, (1) Hard Red Winter, (2) Soft Red Winter, and (3) 
White. Hussar, an immune variety (Table 1) ; Sherman and several 
other selections from Turkey (Table 8) ; and Ridit, resulting from a 
hybrid between Turkey and Florence (Table 8), are hard red winter 
wheats. Banner Berkeley (Table 8) is a soft red winter wheat. 
Florence, a commercial Australian variety (Table 8) ; Martin, another 
immune selection (Tables 1 and 8) ; and the strains of the so-called 
