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 21 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, Russia, 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. 



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, Russia, by the United States Department of Agriculture 



