18 
BULLETIN 1299, U. S. DEPARTMENT OF AGRICULTURE 
DURUM WHEATS 
The durum wheats as a group are more bunt resistant than the 
common and club wheats, except the hard red winter varieties, but 
showed an average infection of 33.1 percent (Table 3). There is a 
wide range of susceptibility, however, between varieties within the 
group. Kubanka (C. I. No. 2909) and Velvet Don (C. I. No. 2222) 
in limited tests showed high resistance, but none was bunt free. 
Table 3. — Durum wheats grown at Davis, Calif., and Pullman, Wash., showing 
the percentages of heads infected with bunt in the years specified 
C.I. 
No. 
Percentages of bunted heads 
Variety 
Davis 
Calif. 
Pullman., Wash. 
Average 
in all 
station 
years 
when 
grown 
1920 
1921 
1919 
1920 
Acme: 
5284 
1594 
1494 
4064 
6174 
5295 
67.8 
9.5 
55.9 
43.0 
44.4 
30.6 
50.6 
2.8 
65.4 
18.6 
22.6 
40.7 
45.4 
49.4 
1.9 
30.8 
21.9 
92.7 
89.9 
48.0 
37.5 
64.2 
15.5 
73.4 
79.5 
42.1 
47.0 
49.1 
.8 
11.3 
7.4 
8.7 
7.3 
37.1 

14.4 
9.7 
4.6 
23.3 
14.6 
32.8 

13.8 
2.7 
70.9 
74.9 

14.4 
50.0 
14.0 
33.8 
53.9 
17.5 
16.5 
38.7 
2.0 
11.3 
9.7 
38.1 
30.8 
64.9 
56.8 
48.4 
Adjini 
10.8 
Arnautka: 
35.9 
Do 
29.2 
Do 
26.6 
Buford: 
Buford _ 
13.8 
59.9 
27.9 
43.9 
Philippino 
2888 
1595-1 
5529 
6031 
6046 
1440 
2246 
2909 
4063 
1593 
2235 
2235-1 
1597 
5296 
3320 
1584 
3222 
2198 
2089 
2228 
2222 
2247 
2096 
2575 
1.4 
Kahla: 
Kahla 
39.9 
Do 
6.9 
28.6 
16.0 
13.6 
Sloat . 
32.0 
Kubanka: 
Kubanka - 
17.1 
28.0 
26.3 
Do 
41.1 
Do 
1.0 
Kubanka No. 8 
9.3 
3.3 
28.8 
58.5 
20.7 
Marouani: 
Marouani. 
21.6 
Do 
81.8 
Do 
82.4 
Medeah .. 
24.0 
Mindum: 
Mindum .._ 
Monad: 
Monad „ 
14.3 
33.4 
2.8 
22.7 
29.5 
39.9 
23.9 
46.9 
Peliss: 
Pelissier 
10.8 
Pentad: 
Pentad (D-5) 
50.0 
45.0 
66.7 
Richi . . 
29.8 
31.8 
Velvet Don: 
Velvet Don 
4.5 

2.3 
Do 
77.0 
75.2 
28.0 
37.8 
59.7 
8.9 
57.4 
Yellow Gharnovka 
67.5 
(No name) 
18.5 
Annual average 
45.7 
23.0 
13.6 
39.5 
33.1 
Two-year station average ... 
34 
.4 
26.6 
MINOR WHEAT GROUPS 
Results of the bunt experiments with the minor wheat groups, such 
as emmer, spelt, poulard wheat, Polish wheat, and einkorn, are 
given below. Data for the first three of these are given in Table 4. 
The data for emmer show that the varieties grown bore 18.5 per 
cent of infected heads. Emmer is more resistant than common, 
club, durum, or poulard wheat. 
