EXPERIMENTS WITH KHERSON AND SIXTY-DAY OATS. 



41 



Sweden. All the inidseason varieties have outyielded the Sixty- 

 Day and Kherson, which in turn have outyielded the late side oat, 

 White Russian. From these results it appears that the better mid- 

 season varieties are to be preferred to the early ones for this section. 



RESULTS AT MANDAN.l 



The Sixty-Day oat has been included in varietal experiments at 

 the Northern Great Plains Field Station, Mandan, N. Dak., since 1916. 

 The annual and average yields of this and five other varieties grown 

 during the years 1916 and 1917 are shown in Table XXIX. 



Table XXIX. — Annual and average yields of the Sixty-Day and five other varieties of 

 oats grown at the Northern Great Plains Field Station, Mandan, .V. Dak., during the 

 years 1916 and 1917. 



[Data obtained in cooperation with the Office of Dry-Land Agriculture.] 



Group and variety. 



C. I. No. 



Yield 1 

 1916 



er acre (bi 

 1917 



41.3 



44.3 



45.2 

 32.0 



40.7 



37.6 



ishels). 

 Average. 



Early yellow: 



Si.xty-Day 



165 



493 



560 

 656 

 134 



744 



46.4 



53.6 



51.4 

 54.3 

 41.6 



48.0 



45.9 



Midseason yellow: 



Golden Rain 



49.0 



Midseason white: 



Victory 



48.3 



Early Mountain ... . . 



43.2 



Swedish Select 



41.2 



Late white (side): 



White Russian 



42.8 







The data shown in Table XXIX indicate that the best midseason 

 varieties probably wiU outyield the Sixty-Day in central North 

 Dakota, but data covering only two years are not sufficient to justify 

 the drawing of definite conclusions. The results, however, are in 

 accord with those obtained at Dickinson. 



RESULTS AT LANGDON. 



The annual and average yields of the Sixty-Day and six other vari- 

 eties of oats grown at the Langdon substation (39) during the 5-year 

 period from 1909 to 1913, inclusive, are presented in Table XXX. 



Table XXX. — Annual and average yields of the Sixty-Day and six other varieties of oats 

 groivn at the Langdon (N. Dak.) substation during the 5-year period frorn 1909 to 1913, 

 inclusive. 



[Data compiled from annual reports of the Langdon subexperiment station (39).] 



Group and variety. 



Yield per acre (bushels). 



1909 



1910 



1911 



1912 



1913 



Average. 



Early yellow: 



Sixty-Day 



2 66.8 



56.7 

 72.0 

 74.4 



60.0 

 54.0 

 50.0 



8.0 



15.5 

 14.8 

 14.0 



20.8 

 20.3 

 21.3 



40.0 



71.3 

 64.4 

 60.2 



76.5 

 75.8 

 76.5 



54.7 



80.3 

 66.7 

 66.1 



73.4 

 80.5 

 78.1 



36.3 



48.3 

 45.3 

 45.0 



57.0 

 53.8 

 56.0 



41.2 



Midseason white: 

 Siberian ...... 



54 4 



Big Four : . . . 



52.6 



Swedish Select 



51.9 



Late white (side): 



White Russian 





Select Tartarian 



56.9 



New Zealand 



56.4 







1 Data from impubUshed annual reports of Mr. J. C. Brinsmade, jr. , scientific assistant in charge of cereal 

 experiments at the Northern Great Plains Field Station, to the Office of Cereal Investigations. 



2 Yield of the early yellow strain known as Seventy-five Day. 



