46 
BULLETIN 618, U. S. DEPAETMENT OF AGRICULTUKE. 
Kubanka has slightly outyi elded Arnautka. It has excelled also in 
all periods all other durum varieties except a pure-line selection of 
Taganrog (C. I. No. 1570). This selection has been given Cereal 
Investigations No. 5295 and is here named Buford, to commemorate 
the Buford-Trenton Reclamation Project, in which the Williston sub- 
station is located. This wheat has outyielded all others included in 
Table XXIII during each of the last four years, with an average yield 
of 44.1 bushels, which is 1.6 bushels greater than that of Kubanka. 
Table XXIII. — Annual and average yields of six varieties of durum wheat and five 
varieties of common wheat grown at the Williston (N. Dak.) substation during periods 
of varying length in the nine years from 1908 to 1916, inclusive. 
[Data obtained in cooperation 
with the 
tfort 
h Dakota Agricultural Experimer 
it Station.] 
C.I. 
No. 
Yield per acre (bushels). 
1908 
1909 
1910 
1911 
1912 
1913 
1914 
1915 
1916 
Average. 
Class, group, and variety. 
4 
years, 
1913 
to 
1916. 
6 
years, 
1908 
to 
1913. 
8 
years, 
1909 
to 
1916. 
9 
years, 
1908 
to 
1916. 
Durum: 
Kubanka— 
Buford 
5295 
1440 
3693 
1447 
1350 
1445 
3641 
3697 
3083 
3698 
1543 
35.0 
54.fi 
49.4 
37.2 
44.1 
12.6 
15.6 
15.8 
12.8 
15.6 
39.1 
37.4 
35.5 
34.8 
36.8 
11.0 
6.1 
9.3 
9.5 
3.7 
8.9 
8.2 
10.5 
7.3 
8.9 
51.0 
49.7 
46.0 
48.3 
43.3 
33.0 53.8 47.3 
36.0; 42.5 
37.4 41.2 
25.9 
25.3 
25.3 
24.4 
22.2 
35.0 
33.3 
32.5 
34. 7i 47.2 
45.5 
31.3 
Gharnovka. ....... 
34.8 
33.7 
25.0 
29.0 
28.7 
30.7 
25.0 
7.8 
Velvet Don— Velvet 
Don 
Common: 
Fife- 
Marquis. 
52.5 
51.3 
47.5 
46.3 
10.0 
40.6 
45.1 
44.6 
43.4 
12.8 
35.0 
31.8 
28.5 
35.0 
34.2 
39.3 
39.2 
37.8 
37.4 
16.2 
Power 
Bluestem — Datcoia 
Preston— Preston ..... 
Crimean (winter)— 
Beloglina 
13.1 
16.7 
34.0 
35.1 
26.2 
40.0 
17.1 
11.1 
13.4 
9 9 
11.1 
10.9 
12.7 
26.5 
44.7 
42.3 
44.7 

24.8 
24.5 
33.0 
31.3 
30.8 
17.7 
30.8 
29.7 
The durum wheats have outyielded the leading varieties of Fife, 
Bluestem, Preston, and Crimean winter wheat in all the periods in 
which comparisons can be made. The lead of Kubanka over Power 
Fife, its nearest competitor in the common wheats, in the 8-year and 
9-year periods is 2 bushels and 1.7 bushels, respectively, quantities 
which may be called fairly significant. It is probable that conditions 
in the valley where the station is located are slightly more favorable 
to common wheat than they are on the upland soil, which includes 
most of the farm land in that section of the State. 
These results, covering a* long period of years, together with those 
from Dickinson, N. Dak., and Highmore, Eureka, and Newell, S. 
Dak., show rather conclusively that Kubanka durum wheat is the 
variety best adapted to the central and western parts of North and 
South Dakota. A single year's test at Mandan, N. Dak., further 
supports this conclusion. 
