RELATIVE RESISTANCE OF WHEAT TO BUNT 
25 
White Odessa (Tables 1 and 8) are white wheats. There were no 
outstanding resistant varieties or selections in the Hard Red Spring 
and Durum classes, and the problem of developing resistant com- 
mercial wheats in these classes apparently is more difficult. 
Only two of the resistant wheats mentioned here, Florence and 
Ridit, were bred especially for bunt resistance. The others originated 
from selections made for other purposes. The discovery of their 
bunt resistance resulted from the experiments presented herein. 
Table 8 contains the detailed results of the experiments with the 
immune and resistant varieties during two years at Davis, Calif., and 
during four years for most varieties at Moro, Oreg., and for a few 
varieties at rullman, Wash. 
Table 8. — Percentages of bunted heads -produced by the most resistant varietie 
and selections of hard red winter, soft red winter, and white wheats grown at Moro, 
Oreg., Davis, Calif., and Pullman, Wash., in one or more years during the period 
specified 
[T= Trace] 
C.I. 
No. 
Percentages of bunted heads 
Class and variety- 
Davis, 
Calif. 
Moro, 
Oreg. 
Pullman, Wash. 
Aver- 
age in 
1920 
1921 
1919 
1920 
1921 
1922 
1919 
1920 
1921 
1922 
all 
station 
years 
when 
grown 
Hard red winter: 
4843 
4430 
6703 
6175 



3.6 

.5 

.2 






o 
Sherman. 
LI 
Ridit (Washington 
No. 2324) ... 

2.0 

"§."6" 
T 
10.3 

5.7 
T 
Turkey. _ 
8.6 
.3 
5.8 
Turkey Selection: 
No. 1532-1 
2.3 
2.8 
6.5 
3.6 
.5 
2.3 
1.0 
.4 
1.8 

1.0 




.6 
4.9 

■ 
.7 
5.9 
3.2 
1.1 
1.0 
2.0 
1.6 
.6 
.3 
.6 
2.2 

.2 

3.3 
.7 
.4 


.2 


2. 2 
1.8 



3.0 
No. 1558- A 
2. 1 
No. 1558-B 
7367 
7363 
.5 
No. 1571-C 
2. 1 
No. 2576-A 
1.4 
No. 2578-1 
. 2 

.4 
No. 2903-5. 
.7 
No.3055-A 
7366 
7362 
4988 
4463 
4651 
4655 


.2 
Soft red winter: 
Banner Berkeley 
White: 
Florence. . . 

3.0 


.9 
5.5 

.7 
2.0 
3.4 

2.1 
2. 7 
22.0 

1.0 
2.1 
8.0 
24.0 
T 



7.5 
Martin 

White Odessa 
Do 
1.9 
3.2 
8.8 
.9 
2.0 
HARD RED WINTER WHEATS 
Hussar (Red Hussar; C. I. No. 4843) is a pure-line selection made 
from a plat of Hussar wheat at the Illinois Agricultural Experiment 
Station by C. E. Leighty in 1913. It has proved immune from bunt 
in all experiments. The original Hussar variety is of undetermined 
origin, but had been grown at the Illinois station since 1905. It is 
not very resistant to bunt, as it showed 10 per cent of infection at 
Moro, Oreg., in 1921. 
The selected Hussar is an awned hard red winter wheat having 
kernels slightly larger and softer than Turkey. The spikelets are 
easily shattered at maturity. It is of good bread-making quality 
but has yielded less than several other hard red winter wheats. 
Because of its immunity from bunt in the Pacific Coast States it is 
being used as a parent in breeding for bunt-resistant wheats. 
