EXPERIMENTS WITH MARQUIS 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. # Only the narrow 
limits of the Sioux Valley of South Dakota and the Red River Valley 
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 States*'during either two or three 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 
