CEREALS OX THE BELLE FOUECHE EXPERIMENT FAEM. 
47 
average yield of Power is 1.6 bushels per acre higher than Marquis, 
but because of the irregularities just mentioned this difference may 
not be significant. Marquis is the leading variety of wheat in the 
vicinity of Newell and, because of its high quality, earliness. and 
short, strong straw, is probably to be preferred to other common 
wheats for growing on irrigated land. The Kubanka, a durum 
wheat, has outyielded all other varieties to such an extent as to make 
it the most profitable variety. Even at the lower price obtained for 
irrigated durum wheat, the net return doubtless will be higher than 
from any of the common wheats. 
Table XXXIII. — Yields of the varieties of spring wheat groicn on irrigated 
land on the Belle Fourche Experiment Farm, 1912 to 1919, inclusive. 
C.I. 
No. 
Yields 
per acre (bushels). 
Class, group, and variety. 
1912a 
1913 
1914 
1915 
1916 
1917 
1918 
1919 
Average. 
1912 1914 
to to 
1919 1919 
COMMON. 
Fife: 
3276 
3025 
'l9.'5' 
18.3 
17.0 
18.3 
17.0 
14.9 
18.0 
14.7 
12.1 
9.4 
8.4 
620.1 
27.3 
35.0 
35.0 
19.4 
27.5 
20. 
Power 
20.8 21.6 
Ghirka Spring 
1517 
2874 
4872 
3703 
3663 
5284 
1440 
16.4 
22.0 
Bluestem: 
14.2 
15.4 
19.0 
18.0 
11.5 
12.2 
8.0 
7.3 
6.5 
2.0 
19.8 
29.5 
30.7 
37.6 
27.5 
27.3 
1 
18.6 18.7 
Preston: 
22.0 
Unclassified: 
11.7 
19.4 
26.1 
29.7 
DURUM . 
39.2 
41.7 
20.8 i 1 
22.0 
20.6 
25.2 
25.2 
27.0 
a Grown in single plats in 1912. 
b Sown at a lower rate. 
The Haynes Bluestem variety is late, easily injured by rust, easily 
shattered when ripe, and a rather poor yielder. The average yield 
of this variety during the 8-year period is 6.6 bushels per acre less 
than Kubanka. 
The Champlain variety, also called Pringle's Champion, is an 
awned variety having semihard to hard red kernels. This wheat is 
apparently of lower quality than Marquis, Power, or Haynes Blue- 
stem. 
Two varieties of white wheats have been grown, but without much 
success. The Regenerated Defiance was severely injured by rust in 
both 1915 and 1916 and was discontinued from the experiments. The 
Dicklow variety, a soft white wheat extensively grown under irriga- 
tion in Idaho, was included in the experiments in 1919 only. It was 
outyielded by all varieties except Marquis, which yielded the same. 
