2s 



BULLETIN 30, U. S. DEPARTMENT OF AGRICULTURE. 



(Colo.) substation in 1909 and was tested in the seasons of 1909, 1910, 

 and 1911. In 1910 a variety known as the New Roosevelt was 

 received from Mr. Erastus Madsen, Elsinore, Utah. This oat came 

 from Wisconsin in 1908 and was grown one year under irrigation at 

 Elsinore. It resembles the Swedish Select variety, though the 

 berry is shorter and the glumes are whiter than those of the latter. 



The average yields per acre of the Black American, Giant Yellow, 

 and Sixty-Day varieties from 1904 to 1906, inclusive, were 31.7, 24.7, 

 and 22.6 bushels, respectively. 1 The average acre yields of the same 

 varieties for 1907 to 1909, inclusive, were 25.3, 19.5, and 20.9 bushels, 

 respectively. 2 



A sum man' of the yields obtained from spring oats since 1908 is 

 presented in Table XII. 



Table XII. — Annual and average yields obtained in varietal tests of spring oats at the 

 Nephi substation, 1908 to 1912. 





Variety. 









Yield (bushels per acre). 









C.I. 



Xo. 



1908 



1909 



1910 



1911 



1912 



Average. 





1908 

 to 

 1909 



1909 

 to 



1911 



1910 

 to 



1912 



1908 

 to 



1912 



549 

 568 

 165 



165 



Black American , 



(iiant Yellow 



Sixtv-Dav (Xephi).. 

 Sixty-Day (High- 



15.6 

 9.7 

 16.0 



2 48. 8 



« 44. 1 



15.6 

 16.3 



15.0 



3 18.5 



U5.4 



16.6 



8.4 



6.9 



12.8 



11.6 

 12.2 

 2.8 



25.3 

 21.4 

 15.3 



15.6 

 13.0 

 15.5 



33.6 

 28.3 



11.9 

 11.8 



6.1 



15.1 

 13.5 

 7.0 



15.3 

 13.3 

 10.4 



m 



459 



Swedish Select 



*6.2 

 0.6 

 10.9 



8.8 

 5.9 



3 11.5 



24.1 



10.1 



7.7 



13.0 



19.7 









26.6 





16.3 







Average 















26.8 



16.2 



5.9 



8.8 



22.5 



21.2 



9.5 J 13.0 



14.7 



i Average yield of 5 plats. 



- Grown oh land which had been fallow for two years, 

 plats which had produced wheat the previous season. 

 a Average yield of 3 plats. 

 * Average yield of 4 plats. 



All the other varieties were grown in 1908 on 



Table XII shows that the Black American, the Giant Yellow, and 

 the Swedish Select varieties have jaelded most satisfactorily since 

 1908. The Sixty-Day variety has given the lowest average } r ield and 

 the Kherson oat also yielded low. The Xew Roosevelt oat has the 

 highest average yield for the last three years. The average yields per 

 acre for the varieties grown from 1909 to 1912, inclusive, are Black 

 American, 15.2 bushels; Giant Yellow, 14.2 bushels; Swedish Select, 

 13.6 bushels; and Sixty-Day, 9 bushels. The average yield per acre 

 for the Boswell Winter oat during the same period is 17.2 bushels, or 2 

 bushels higher than the Black American, which is the highest yielding 

 spring variety. The yields are all low, and considerable work remains 

 to be done before the oat crop is made a profitable one on the dry 



1 Jardine, W. M. Loc. cit. 



2 Farrell, F. D. Loc. cit. 



