22 
BULLETIN 878, U. S. DEPARTMENT OE AGRICULTURE. 
years from 1917 to 1919, inclusive, it has exceeded the average yield 
of Monad by 0.3 and that of D-5 by 0.1 bushel. Other durum wheats 
which are not so resistant to stem rust have not yielded as well as 
these three varieties. 
Table VIII. — Yields of 42 varieties and strains of spring wheat grown at the High- 
more (S. Dak.) Substation during the 7-year period from 1913 to 1919, inclusive, with 
average yields in the 8-year period from 1905 to 1912, inclusive, and the average differ- 
ences from the Marquis variety for the years grown. 
[Data obtained in cooperation with the South Dakota Agricultural Experiment Station.] 
Yield per acre (bushels). 
Class, group, and 
C.I. 
No. 
Aver- 
age, 
1905 
to 
1912. 
1913 
1914 
1915 
1916 
(2 plats). 
1917 
(2 plats). 
1918 
(2 plats). 
1919 
Average. 
variety. 
1913 
to 
1919. 
Differ- 
ence 
from 
Marquis. 
COMMON. 
Fife: 
3641 
1517 
2873 
2989 
3025 
3897 
3083 
1505 
2874 
2397 
3078 
3269 
4324 
3081 
2958 
2492 
3076 
3079 
4323 
5525 
5284 
3310 
1547 
4064 
5295 
1354 
1440 
1516 
2094 
2246 
3303 
4063 
5296 
"ii.'i 
"l6.'5 
12.7 
6.5 
8.7 
6.3 
4.8 
13.3 
11.3 
7.3 
8.7 
6.7 
33.3 
16.7 
10.0 
26.7 
15.0 
6.4±0.6 
7.2±0.4 
11.4±1.2 
9.1±G 
9.5±0.3 
20.9±0.4 
10.3 
15.5 
Ghirka 
- 5. 2±2. 1 
- 8.3±2.5 
- 5.9±0.5 
Do 
-11.0±3.0 
Do 
5.0±0 
10.8±0.3 
16.7±3.5 
2.2 
- 3.6:1-1.2 
Bluestem: 
12.7 
12.2 
12.9 
1.0 
7.7 
9.7 
8.7 
2.0 
4.8 
7.5 
15.0 
7.5 
7.1 
'ii'6 
18.3 
— 12.7±0.9 
22.5 
18.3 
11.7 
3.3 
2.0 
26.7 
35.8 
- 8.1±1.2 
Do.".'.! 
1.7±0 
9.7±0 
18.4±1.4 
1.1 
- 6.4±1.4 
Preston: 
- 7.7±5.6 
— 13.3±6.7 
Do 
-18.7±5.0 
"ii'6 
' '6.'o 
12.5 
5.3 
8.3 
6.7 
6.7±0;7 
7.0±0.5 
7.5±i.6 
9.7±0.9 
18.3±4.9 
20.0±0.7 
10.3 
7.8 
'iTi 
- 2.6±0.9 
- 1.4±0.6 
Do 
- .2 
Ladoga: 
16.8 
6.4 
9.5 
36.7 
3.3 
- .2±2.9 
Miscellaneous: 
Ak 
-13.8±6.5 
- 4.9±0.9 
Prelude 
25.0 
9.5±0.5 
6.4±0.5 
12.1±2.4 
14.8 
14.8 
17.5 
12.5 
- 2.9±2.3 
Wisconsin Wonder . . . 
DURUM. 
Kubanka: 
30.0 
31.7 
22. Oil. 3 
17.0±0.5 
12.7±1.7 
12.1±0 
18.4±1.4 
13.7±1.8 
+ 6.2±2.0 
Algeria.. 
**2.'8 
+ 1.5±2.4 
-9.9 
Do 
38.3 
7.5±0.7 
1.3±0.1 
16.7±1.4 
2.5 
11.1 
- 3.2±2.0 
+ 1.8 
17.5 
15.9 
17.8 
3.3 
2.0 
4.2 
1.5 
2.3 
22.2 
19.7 
30.0 
33.3 
- 1.3±4.0 
Do 
12.2±0.4 
15.2±1.7 
12.9±0.3 
15.5 
15.8 
4- .3±1.9 
Do 
-8.5 
Do 
-11.2 
Do 
-10.4 
Do 
28.3 
11.0 
-5.0 
10.5±0.5 
13.3±1.2 
- 5.4±6.7 
8.6 
15.8 
3.9 
-1.7 
3320 
4163 
3290 
3322 
1444 
6227 
6252 
6046 
17.3±1.2 
1.3±0.1 
14.6±3.2 
21.3±1.7 
4- 1.7±3.2 
Pierson 
"2." 2 
"7." 6 
40.0 
10.0±0.7 
- 1.2±2.3 
White Turkish 
Red Durum: 
D 5 
- 8.4±1.& 
19.3±1.2 
12.5±2.1 
20. Oil. 4 
16.4 
11.4 
10.5 
7.5 
+ 1.9±4.1 
Gharnovka selection. . 
Miscellaneous: 
Golden Ball 
3.3 
29.3 
33.3 
10.0±0.7 
1.1±0.3 
- .1±2.5 
+ 1.1 
+ .2 
Do 
14.0±3.2 
- 4.S±1. 
1 
