CEREAL EXPERIMENTS AT JUDITH BASIN SUBSTATION. 25 
in 1909, when 206 varieties and selections were grown in 2-rod rows. 
In 1910 and 1911 head selections were made from the most promising 
varieties. In 1912 the spring-wheat nursery was completely de- 
stroyed by hail. A reserve supply of seed of a few of the selections 
was available and was sown in 1913. At the present time several 
selections have been increased and are being tested in fiftieth-acre 
plats. 
COMPARISON OF SPRING AND WINTER WHEATS. 
Table XVIII gives the annual and average yields of the leading 
varieties of spring and winter wheats during six years, 1909 to 1911 
and 1913 to 1915, inclusive. The average yields are shown graphically 
in figure 8. Since the spring wheat was destroyed by hail in 1912, it 
was necessary to omit that year. The tabic shows that on the 
K/JslfffrOF, C. /. A/9/5 83- 
ffl/lft/i-OF, C A /VP/442- 
TUR/fEK <?■/• A/9/558- - ■ 
^3G.O BU 
\36. 3 3U 
\36.0 3(/. 
SPR/NG Wrt£/)T 
P£L /SS/5/?, C. /. A/P/534 — 
G/i/R/f4 SP/?///&,C./.A/P/5/7' 
F/?£T5S, C- /. /V9/59S 
G/9/.G/U. OS, C./. N92&9&- 
Fig. 8. — Diagram showing the average yields of winter and spring wheat varieties at the Judith Basin 
substation for six years, 1909 to 1911 and 1913 to 1915, inclusive. 
average the winter wheats outyield the spring varieties by about 8 
bushels per acre. Heads of representative varieties of the various 
groups of wheat are shown in figure 9. 
Table XVIII. — Annual and average yields of leading varieties of winter and spring 
wheat grown at the Judith Basin substation, Moccasin, Mont., in the six years 1909 
to 1911 and 1913 to 1915, inclusive. 
Group and variety. 
WINTER WHEAT, 
Crimean: 
Kharkof 
Do 
Turkey 
SPRING WHEAT. 
Durum: 
Pelissier 
Fife: 
Ghirka 
Preston: 
Fretes 
Miscellaneous : 
Galgalos 
C.I. 
No. 
1583 
1442 
1558 
1584 
1517 
1596 
2398 
Yield per acre (bushels). 
32.8 
20. 7 
21.7 
41.0 
34.2 
23.9 
40.2 
1910 1911 1913 1914 1915 Average, 
48.0 
46.2 
43.J 
10.5 
13.2 
16.8 
18.5 
41.3 
43.3 
43.7 
28.3 
25.2 
32.7 
31.3 
31.1 
33. 1 
32. 1 
32.6 
29.0 
35.2 
30.7 
24.5 
25.5 
25.8 
26.5 
23.0 
25.7 
24.5 
49.4 
49.0 
49.2 
42.2 
38.0 
42.5 
40.5 
38.0 
36.3 
36.0 
30.2 
27.1 
29.4 
30.9 
