22 



BULLETIN 39, U. S. DEPARTMENT OF AGRICULTURE. 



Table VIII. — Annual and average yields in South Dakota of the varieties of 

 oats tested at Brookings, ete. — Continued. 



Eureka. 



S.Dak. 

 No. 



C.I. 

 No. 



Group and variety. 



Yield per acre (bushels). 



1906 



1907 



190S 



1909 



1910 



1911 



1912 



Aver- 

 age. 



165 



165 

 134 



EARLY. 



Sixty-Day 









37.2 

 43.7 



20.2 

 25.0 











6.1 

 4.7 



15.9 



112 



MEDIUM LATE. 









18.4 























40.5 



22.6 







5.4 



17.1 















Cottonwood. 



165 



165 

 134 



"EARLY. 









12.5 

 7.2 



4.4 

 6.3 





 



25.9 

 16.6 



10.7 



112 



MEDIUM LATE. 



Swedish Select 









7.5 























9.9 



5.4 







21.3 



9.1 

















Of the varieties grown at Brookings for the seven years from 

 1906 to 1912 the best average acre yields were produced by the Sixty- 

 Day, 43.5 bushels, and the Swedish Select, 39.2 bushels. These 

 yields were considerably higher than those of any other variety in 

 the test, exceeding those of the Banner, which, as already noted, is 

 quite typical of the oats generally grown in the State, by 13.9 and 

 9.6 bushels, respectively. 



Similar data are shown in Table VIII for the trials at Highmore, 

 which are representative of the central portion of the State. At 

 that point it will be noted that there were two total failures, though 

 in the area as a whole there was only one — that of 1911. Of the 

 varieties here recorded five yielded less than 20 bushels per acre, 

 and were therefore produced at a loss. The average for all varieties 

 reported for all years shows a profit of 4 per cent of the cost of pro- 

 duction, while on the best variety there was a profit of 33 per cent of 

 the cost of production. It is evident, therefore, that the profit or 

 loss in growing oats under conditions similar to those at Highmore 

 during the seven years from 1906 to 1912 would have depended upon 

 the variety used. 



The highest average yields at Highmore were produced by the 

 Swedish Select and Kherson varieties. The Swedish Select averaged 

 26.7 bushels to the acre for the 7-year period from 1906 to 1912; 

 the Kherson, 24.2 bushels; and the Sixty-Day, 22.9 bushels. The 

 Sixty- Day was slightly exceeded in yield by the Belyak and the Red 

 Algerian. 



