24 
BULLETIN 39, U. S. DEPARTMENT OF AGBICULTUEE. 
in 1910, a very dry season, so that the differences are probably 
greater than they would have been in a season of abundant moisture. 
Several representative varieties were used in the experiment. The 
evidence was so conclusive that the yield could be increased by this 
method that it was not considered necessary to repeat the trial. 
Table X. — Results obtained in 1910 at the Righmore, 8. Dak., substation from 
well-cleaned seed of four varieties of oats when grown after an intertilled 
crop, in comparison with ordinary well-cleaned seed tvhen grown after oats. 
Good cultural methods. 
Ordinary cultural 
methods. 
• 
Diflerences. 
A 
"3 
& 
Variety. 
3 
d 
§ 
3 
03 
s 
£ 
S 
* 1 
■s 
J-*". 
c3 
M 
d 
ft 
M 
*?t 
s 
ft 
SjO 
M 
a 
s, 1 " 
X 
■g 
O 
a. •- 
O 
-g 
s 
O 
o 
H °' I 
3 
oa 
T3 
T3 . 
n 
X} 
-3 
-s 
A 
.2 
3j 
1 
ft 
[3 
£ 
>> 
i 
£." 
3 
Lbs. 
Bu. 
Cict. 
Lbs. 
B«, 
Ctttf. 
Lbs. 
Ru. 
c«?. 
88 
32 
21.9 
25.0 
86 
25.0 
9.4 
5 7 
2 
*7 
12.5 
19.3 
Kherson 
89 
36 
21.9 
17.0 
84 
30.0 
10.0 
6.8 
' 5 
6 
11.9 
10.2 
Swedish Select 
95 
39 
35.9 
29.5 
100 
27.0 
25.0 
10.2 
—5 
12 
10.9 
19.3 
Regenerated Swedish Select 
94 
35 
18.8 
14.0 
94 
30.0 
11.6 
6.8 

5 
7.2 
7.2 
Average 
91.5 
35.5 
24.6 
21.4 
- 91 
28.0 
14.0 
7.4 
. 5 
7. 5 
10.6 
14.0 
As shown by the data presented in Table X, the good methods 
increased the yield of grain and straw and gave a product of better 
quality, as is shown by the increased bushel weight in each case. 
These data are in accord with those obtained by other experiment 
stations and with the experience of many farmers. It is therefore 
advisable to grow oats in alternation with a cultivated crop in the 
central part of the State and to use thoroughly fanned seed. Just 
how much of the gain was due to each factor was not determined. 
COMPOSITION OF VARIETIES. 
Table XI presents some data on the composition of the different 
varieties of oats included in the test. The figures, which are for the 
1910 crop at the Highmore substation, include the percentages of 
hull, protein, and water, and the weight of 1,000 grains for each of 
10 varieties. A pure-line selection of the Sixty-Day (C. I. No. 626) 
and ordinary Sixty-Day (C. I. No. 165) were highest in percentage 
of protein and lowest in percentage of hull. The Swedish Select also 
shows a low percentage of hull and high protein content, while in 
size of the grain, as shown by the weight per 1,000 kernels, it greatly 
exceeds the Sixty-Day. As the low percentage of hull and high 
protein content both indicate a high feeding value, it is evident that 
these two varieties are desirable for this reason as well as for their 
high yield. 
