EXPERIMENTS WITH MAEQUIS WHEAT. 9 



Results in the Northern Prairie States. 



This section covers the northern Prairie States lying west of the 

 Mississippi River. It includes Iowa, Minnesota, and the subhumid 

 eastern parts of Nebraska and the two Dakotas. j3nly the narrow 

 limits of the Sioux Valley of South Dakota and the Red River VaUey 

 of North Dakota can be classed as subhumid in these two States. 



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Fig. 3. — Diagram showing the average yields of the Marquis and the leading variety in each of several 

 different groups of wheat at five stations in the northern Prairie States5"d.uring either two or tliree of the 

 years 1913 to 1915, inclusive. 



Marquis wheat has been grown to a considerable extent in this 

 subhumid part of the upper Mississippi Valley. About one and one- 

 third millions of bushels were grown in Minnesota alone in 1914. 

 The variety has been tested at several experiment stations located 

 in this section. The positions of five such stations and the results 

 obtained during the last three years are shown in figure 3. The 



50401°— Bull. 400—16 2 



