16 BULLETIN 400, XJ. S. DEPAETMENT OF AGEICULTrEE. 



Results in the Northern Great Plains Area. 



The northern half of the Great Plains area includes most of Nebraska 

 and the Dakotas, northeastern Colorado, eastern Wyoming, and the 

 eastern half of Montana. 



It was to the northern States of this division that Marquis wheat 

 was first introduced. It is in the Dakotas and Montana that it has 



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Fig. G. — Diagram showing the average yields of the Marquis and the leading variety in each of several 

 different groups of wheat at 11 stations in the northern Great Plains area during either two or three of the 

 years 1913 to 1915, inclusive. 



become most extensively grown. In 1914 North Dakota alone pro- 

 duced over four milhons of bushels and South Dakota nearly a miUion 

 bushels. No data for Montana were gathered. If statistics for the 

 production in 1915 were available, the increase in these three States 

 would be found to be enormous. 



Varietal experiments with the Marquis and other wheat varieties 

 have been conducted under dry-land conditions at nine experiment 

 stations in this section during the three years, 1913 to 19 15, inclusive, 



