EXPERIMENTS WITH DURUM WHEAT. 
47 
KESULTS AT MOCCASIN, MONT. 
The Judith Basin, or Fergus County, substation, is located on a 
dark clay loam with a gravelly subsoil. The station has an altitude 
of 4,228 feet, and the average annual precipitation in the last 18 
years has been 16.7 inches. Experiments there are conducted cooper- 
atively by the Montana Agricultural Experiment Station and the 
Office of Cereal Investigations. 
Data are presented in Table XXIV on experiments with durum 
wheat and the leading varieties of common wheat since 1908. The 
principal data are shown in graphic form in figure 12. Eleven va- 
rieties of durum wheat, belonging to four different groups, have been 
under experiment, though only two varieties have been grown con- 
tinuously since 1908. The experimental crop of 1912 was destroyed 
by hail, so that the results of only eight years are available. 
Table XXIV. — Annual and average yields of eleven varieties of durum wheat and four 
varieties of common wheat grown at the Judith Basin substation, Moccasin, Mont., 
during periods of varying length in the nine years from 1908 to 1916, inclusive. 11 
[Data obtained in cooperation with the Montana Agricultural Experiment Station.] 
CI. 
No. 
Yield per acre (bushels). 
1908 
1909 
1910 
1911 
1913 
1914 
1915 
1916 
Average. 
Class, group, and variety. 
4 
years , 
1908 
to 
1911. 
7 
years, 
1909- 
1911 
and 
1912- 
1916. 
8 
years, 
1908- 
1911 
and 
1912- 
1916. 
Durum: 
Pelissier— Pelissier . . . 
Kubanka— 
Kubanka 
Pererodka 
Yellow G h a r - 
1584 
1440 
1350 
1444 
1520 
1494 
1493 
1447 
1570 
3024 
1445 
1583 
3641 
3022 
2958 
3021 
10.0 
5.0 
5.0 
15.0 
9.5 
10.0 
10.0 
5.0 
3.3 
10.0 
7.5 
41.0 
37.8 
36.7 
39.3 
40.3 
33.0 
36.7 
35.8 
36.3 
39.0 
32.3 
32.8 
10.5 
8.8 
12.7 
8.2 
6.5 
7.6 
10.0 
10.0 
16.3 
8.5 
6.1 
48.0 
28.3 
33. 
36.0 
27.7 
29.0 
31.7 
25.0 
30.3 
24.3 
26.0 
26.0 
41.3 
32.0 
30.7 
32.0 
32.8 
30.0 
26.5 
23.0 
25.3 
25.0 
25.2 
42.2 
40.7 
40.1 
39.2 
40.1 
28.7 
28.7 
22.5 
21.2 
22.6 
22.5 
21.3 
20.6 
20.4 
20.3 
20.0 
20.9 
18.0 
29.9 
29.0 
27.4 
26.0 
Beloturka 
Arnautka 
Do 
Gharnovka 
Kahla — Purple 
Velvet Don — Vc;. L . 
Common: 
Crimean (winter)— 
31.1 
33.5 
26.7 
29.2 
30.3 
23.7 
23.0 
22.4 
61.3 
42.3 
40.7 
41.6 

32.9 
25.0 
627.1 
35.0 
Fife— 
Rysting 
2.5 
"h'.o 
29.0 
31.0 
30.0 
13.0 
13.5 
11.7 
27.6 
25.0 
21.0 
"l'l'.O 
26.3 
27.1 
23.4 
Preston— Prestoa 
Bluestem— Haynes.. . 
a The crop of 1912 was destroyed by hail. 
b Yield of Preston, C. I. No. 3081, substituted. 
The yields of all durum varieties are in rather close agreement. 
Pelissier has exceeded or equaled in yield all other varieties in all 
periods. Kubanka has ranked very close to Pelissier throughout. 
In the first four years, Kubanka was slightly excelled by Pererodka, 
Yellow Gharnovka, and Beloturka, in the order named. 
