SPRING WHEAT ON THE NORTHERN GREAT PLAINS. 
37 
others this difference is recognized by farmers to such an extent that 
they sow Marquis only on rich or moist soil, such as summer fallow 
or corn ground, and Power Fife on land continuously cropped to small 
grain. If they sow Marquis on land following other crops of small 
grain, it often is too short to be harvested with a binder and much 
greater loss results than if Power Fife were grown. The Erivan, 
Fretes, Prelude, and Algeria varieties are all earlier than Marquis and 
also somewhat shorter. Most of the commercial varieties of durum 
wheat are from 4 to 6 inches taller than Marquis in the northern Great 
Plains. The rust-resistant varieties, Acme, Monad, and D-5, are 
from 2 to 3 inches shorter than Kubanka and Arnautka. 
Table XVI. — Average height of plant of 38 varieties of spring wheat grown at one or more 
of the 11 experiment stations in the northern half of the Great Plains area during three 
or more station years in the 7-year period from 1913 to 1919, inclusive, compared with the 
Marquis variety for the same station years. 
Average height of 
Average height of 
plant (inches). 
plant (inches). 
a • 
Difference 
<D 
s • 
Difference 
Class, group, 
§ £ 
from Mar- 
Class, group, and 
OT 
§£ 
from Mar- 
and variety. 
a) 
1 
2% 
<2 ^ 
quis. 
variety. 
C3 
S 
53 
o >> 
quis. 
d 
6 
a 
"ea 
OS 
.2 
03 
d 
d 
Pi 
m 
S3 
>> 
® 
> 
1 
OS 
.2 
"el 
Eh 
© 
o 
OS 
COMMON. 
DTJBUM. 
Fife: 
Kubanka: 
Marquis 
Ghirka Spring 
3641 
57 
29.4 
Acme 
5284 
16 
29.0 
26.9 
2.1 
1517 
42 
32.6 
31.0 
1.0 
Algeria 
3310 
4 
25.2 
28.7 
3.5 
Glvndon 
2873 
43 
30.5 
30.0 
. 5 
Arnautka 
1493 
20 
31.9 
27.1 
4.8 
Kitchene*. . . . 
4800 
3 
30.3 
28.3 
2.0 
Do 
4064 
47 
34.6 
28.9 
5.7 
Power 
3697 
44 
28.3 
28.4 
0.1 
Beloturka 
1520 
17 
35.1 
29.7 
5.4 
Red Fife 
3329 
7 
33.1 
32.4 
.7 
Buford 
5295 
10 
34.7 
27.5 
7.2 
Ruby 
6047 
4 
26.0 
25.7 
.3 
Kubanka 
1440 
52 
33.8 
29.6 
4.2 
Rysting 
3022 
25 
32.3 
30.7 
1.6 
Do 
1516 
17 
30.1 
27.7 
2.4 
Bluestem: 
Kubanka No. 8 
4063 
31 
35.3 
29.6 
5.7 
Crossbred 
3314 
7 
34.7 
32.4 
2.3 
Marouani 
1593 
9 
32.0 
26.2 
5.8 
Dakota 
3083 
8 
33.7 
30.2 
3.5 
Mindum 
5296 
5 
27.8 
23.6 
4.2 
Havnes 
2874 
50 
30.9 
28.6 
2.3 
Monad 
3320 
21 
30.5 
28.9 
1.6 
Preston: 
Pierson 
4163 
6 
31.0 
29.5 
1.5 
Converse 
4141 
14 
27.7 
26.3 
1.4 
Erivan 
2397 
17 
24.3 
26.7 
2.4 
Red Durum: 
1596 
4324 
7 
34 
33.7 
29.5 
34.7 
28.9 
"\"fi" 
1.0 
D-5 
3322 
18 
27.8 
25.5 
2.3 
Pioneer 
Preston 
3081 
50 
28.7 
27.9 
.8 
Peliss: 
Ladoga: 
Huron 
Peliss 
1584 
'JB\ 
32.5 
28.6 
3,9 
4935 
18 
29.4 
30.6 
.8 
Laramie 
6235 
4 
29.0 
28.5 
.5 
Miscellaneous: 
Manchuria . . . 
2492 
17 
34.4 
32.4 
2.0 
Golden Ball... 
6227 
4 
26.8 
24.5 
2.3 
Norka 
4377 
6 
27.5 
27.0 
.0 
Miscellaneous: 
Prelude 
4323 
35 
27.0 
29.0 
2.0 
Galgalos. ... 
2398 
20 
26.8 
28.8 
2.0 
STEM -RUST INFECTION. 
Stem rust (Puccinia graminis tritici) is very destructive to spring 
wheat in the northern half of the Great Plains area. Fortunately, 
however, this disease usually is limited to the eastern portion of this 
section. In 1916 and 1919 very serious epidemics occurred, which in 
extreme cases reduced the yield of wheat 75 to 100 per cent. Some 
damage from rust occurs at a few of the stations nearly every year. 
