114 ORIGIN AND DESCRIPTION OF WHEAT TYPES 



Wheat Regions. The color and hardness of wheat is related to 

 climatic conditions, the drier the climate the harder and darker the 

 wheat, as a general rule. The hard wheats are raised mostly in the 

 belt of states from Texas to North Dakota and including Minnesota. 

 Hard winter wheat is raised mostly south of the boundary between 

 Nebraska and South Dakota, while hard spring and macaroni wheat 

 is raised north of this line (Fig. 45). 



The soft wheats are raised in the more humid regions of the 

 eastern and southern States, while semihard wheat is raised in the 

 great middle region from Pennsylvania to the Missouri River. 



FIQ. 45. The principal wheat regions, according to type of wheat grown. 



East of the Rocky Mountains we may say, in general, the quality 

 of wheat is related to the humidity or dryness of climate. West of 

 the Rocky Mountains, however, soft wheat is produced in a rather 

 dry climate, but here it is also due to the climate and not to the soil. 

 While climate affects the quality of wheat, the soil has little or no 

 affect. 



The Durum Wheat Group. While the term " hard wheat " is 

 applied to several of the bread wheats, it can only properly be applied 

 to the durums, as these are much harder than the bread wheats. The 



