EXPERIMENTS WITH KHERSON AND SIXTY-DAY OATS. 
41 
Sweden. All the midseason varieties have outyielded the Sixty- 
Day and Kherson, which in turn have outyielded the late side oat, 
White Russian. From these results it appears that the better mid- 
season varieties are to be preferred to the early ones for this section. 
RESULTS AT MANDAN. 
The Sixty-Day oat has been included in varietal experiments at 
the Northern Great Plains Field Station, Mandan, N. Dak., since 1916. 
The annual and average yields of this and five other varieties grown 
during the years 1916 and 1917 are shown in Table XXIX. 
Table XXIX. — Annual and average yields of the Sixty-Day and jive other varieties of 
oats grown at the Northern Great Plains Field Station, Mandan, N. Dak., during the 
years 1916 and 1917. 
[Data obtained in cooperation with, the Office of Dry-Land Agriculture.] 
Group and variety. 
C. I. No. 
Yield per acre (bushels). 
1916 
1917 
41.3 
44.3 
45.2 
32.0 
40.7 
37.6 
Average. 
Early yellow: 
165 
493 
560 
656 
134 
744 
46.4 
53.6 
51.4 
54.3 
41.6 
48.0 
43.9 
Midseason yellow: 
Golden Rain 
49.0 
Midseason white: 
Victory 
48.3 
43.2 
Swedish Select 
41.2 
Late white (side): 
White Russian 
42.8 
The data shown in Table XXIX indicate that the best midseason 
varieties probably will outyield the Sixty-Day in central North 
Dakota, but data covering only two years are not sufficient to justify 
the drawing of definite conclusions. The results, however, are in 
accord with those obtained at Dickinson. 
RESULTS AT LANGDON. 
The annual and average yields of the Sixty-Day and six other vari- 
eties of oats grown at the Langdon substation (39) during the 5-year 
period from 1909 to 1913,. inclusive, are presented in Table XXX. 
Table XXX. — Annual and average yields of the Sixty-Day and six other varieties of oats 
grown at the Langdon (N. Dak.) substation during the 5-year period from 1909 to 1913 y 
inclusive. 
[Data compiled from annual reports of the Langdon subexperiment station (39).] 
Group and variety. 
Yield per acre (bushels). 
1909 
1910 
1911 1912 
1913 
Average. 
Early yellow: 
Sixty-Day 
2 66.8 
56.7 
72.0 
74.4 
60.0 
54.0 
50.0 
8.0 
15.5 
14.8 
14.0 
20.8 
20.3 
21.3 
40. 54. 7 
36. 3 
48.3 
45.3 
45.0 
57.0 
53.8 
56.0 
41 2 
Midseason white: 
Siberian 
71.3 
80.3 
54 4 
Big Four 
64.4 
60.2 
76.5 
66.7 
66.1 
714 
52 6 
Swedish Select 
51 9 
Late white (side): 
White Russian 
57 5 
Select Tartarian 
75.8 i 80.5 
76.5 
56 9 
New Zealand 
56 4 
i Data from unpublished annual reports of Mr. J. C. Brinsmade, jr., scientific assistant in charge of cereal 
experiments at the Northern Great Plains Field Station, to the Office of Cereal Investigations. 
2 Yield of the early yellow strain known as Seventy-five Day. 
