CEREAL EXPERIMENTS AT JUDITH BASIN" SUBSTATION. 
15 
Table X. — Annual and average yields of varieties of winter wheat at the Judith Basin 
substation, Moccasin, Mont., 1909 to 1915, inclusive. 
Group and variety. 
Crimean: 
Alberta Red... 
Armavir 
Belcglina 
Crimean 
Do 
Do 
Do 
Do 
Do 
Kharkof 
Do 
Torgova 
Turkey 
D6 
Do 
Do 
Do 
Hungarian: 
Bacska 
Weissenberg. . . 
Miscellaneous: 
Currell 
Gliirka Winter 
Koffoid 
Zimmerman . . . 
C. I. 
No. 
2979 
1355 
1543 
1544 
1432 
1433 
1435 
1436 
1437 
1559 
1442 
1583 
1539 
1532 
1571 
1576 
1558 
2998 
1562 
1563 
2906 
1438 
2997 
2907 
Yield per acre (bushels). 
1909 
26.7 
25.0 
23.7 
15.3 
30.7 
24.2 
27.5 
25.0 
20.7 
32.8 
25.0 
18.3 
23.3 
21.7 
1910 
37.0 
36.3 
40.5 
32.7 
34.0 
32.4 
40.1 
34.2 
37.4 
35.3 
46.2 
48.0 
30.4 
29.4 
41.6 
28.4 
43.7 
23.6 
28.0 
35.3 
22.6 
23.6 
19.8 
25.4 
1911 
38.5 
30.0 
29.8 
34.8 
40.3 
34.0 
33.3 
32.7 
40.2 
40.0 
43.3 
41.3 
29.2 
33.7 
37.7 
28.7 
43.7 
30.7 
26.7 
33.7 
31.7 
33.0 
34.2 
33.0 
1912 
16.0 
8.0 
12.7 
9.5 
18.0 
11.5 
14.7 
10.0 
17.0 
22.7 
14.0 
21.5 
22.7 
13.6 
1913 
31. 
Q28.0 
30.0 
a35.3 
35.0 
a33. 1 
a3L 1 
29.0 
29.7 
o32.1 
35.5 
a 1914 
23.! 
22.7 
22. 4 
25.5 
24.5 
2.5. S 
Average. 
Three 
vears 
(1909 to 
1911). 
49.5 
51.0 
49.2 
49.0 
49.4 
49.2 
32.3 
30.8 
32.7 
27.2 
34.7 
30.4 
35.0 
33.4 
36.7 
40.7 
28.2 
27.1 
34.2 
36.4 
Five 
vears 
(i909 to 
1913). 
28.5 
30.0 
26.5 
31.0 
29.0 
32.0 
35.2 
24.9 
30.7 
Seven 
vears 
(i909 to 
1915). 
33.3 
31.9 
32.7 
30.9 
33.5 
35.7 
a Yields from acre plats. & Average for six years only, 1910 to 1915. 
As stated previously, the yields in 1909 were lowered on account 
of winterkilling. The average survival on the winter-wheat plats 
in the spring of 1909 was 41 per cent. Wheat that was sown early 
did not suffer from winterkilling and yielded from 45 to 50 bushels 
per acre. 
In 1910 and 1911 the seasonal precipitation was below the average, 
but as there was no hot weather and most of the seasonal rainfall 
came in May and June, good yields were obtained. 
In 1912 the rainfall in May was above normal, while the precipita- 
tion for June was nearly 3 inches below normal. As a result the 
winter- wheat varieties headed early. A local hailstorm on July 11, 
when the wheat was fully headed, reduced the yields about 50 per 
cent. 
In 1913 conditions were about normal and an average crop was pro- 
duced. In 1914 there was abnormally heavy rainfall in May and 
June, followed by unusually hot, dry w T eather in July. This caused 
the wheat to ripen early. The yields were the lowest recorded at the 
station, with the exception of those produced in 1912, and the quality 
of grain was poor. 
In 1915 the temperature during the growing season was below 
normal, while the rainfall was more than 2 inches above normal. 
48601°— Bull. 39S-—16 3 
