78 THE SMALL GRAINS 



them to be grown too far east, much out of their proper 

 area. The range should be extended westward, beyond 

 the 100th meridian. The center of durum wheat produc- 

 tion at present appears to be about Lamoure County, 

 North Dakota. It should be beyond the Missouri River. 

 Kubanka is the chief variety grown. During two or three 



FIG. 23. Field of durum wheat at Broadview, Me 



ontana. 



seasons there has been some complaint of " blighted " 

 spikes in durum wheat. The matter has been investi- 

 gated, and appears to be caused by extreme heat at a 

 critical date in the flowering stage. (Salmon, 1914.) 

 (Fig. 23.) 



1. Varieties now grown : 



Arnautka Ghirka Spring Preston 



Defiance (irrigated) Kubanka Turkey 



Fife Marquis Velvet Bluestem 



2. Needs of the district : 



Early maturity Heat-resistance in flowering stage. 



Drought-resistance 



70. Western Intermountain wheat district. Between 

 the Sierra Nevada and the Rocky Mountains proper, and 



