26 
BULLETIN 39, U. S. DEPARTMENT OF AGRICULTURE. 
tions are similar to those at Highmore, and here again the Swedish 
Select has outyielded the Sixty-Day. As shown by Table XI, the 
Sixty-Day variety of the Highmore crop of 1910 contained 17.5 per 
cent of protein and 24 per cent of hull. The weight of 1,000 grains 
was 17.2 grams. Heads of this variety are shown in figure 7. 
The Sixty-Day oat was introduced from Proskurov, Eussia, by the 
United States Department of Agriculture in 1901. Since that time 
it has been widely distributed and is now obtainable in commercial 
quantities. It can be recommended as the best early variety for the 
South Dakota grower. 
^-1 # ■ 
wi / Wi w « - K r -M u! ■ 
\ Wi' 
f f if 1 
Fig. 7. — Selected heads of the Sixty-Day oat (C. I. No. 165) used in the oat-breeding 
nursery at Highmore, S. Dak. 
Kherson,— The Kherson (C. I. No. 539, S. Dak. No. 115) is iden- 
tical in appearance with the Sixty-Day and nearly the same in per- 
formance. The grain is a little larger and more starchy, containing 
less protein in proportion to the total weight. It also contains a 
slightly higher percentage of hull. These statements are based upon 
the data reported in Table XL The samples used in this study were 
grown at Highmore in 1910. It may be that these differences would 
not hold if the average results were available. To all external ap- 
pearances the varieties are identical. 
Swedish Select— The Swedish Select (C, I. No. 134, S. Dak. No. 
112) is a medium-late white oat which was introduced from St. 
Petersburg, Eussia, by the United States Department of Agriculture 
