142 



FUNDAMENTALS OF AGRICULTURE. 



price received made the wheat crop for the United 

 States of greater value than the oat crop by more than 

 $324,000,000, al- 

 though the oat crop 

 wheat 

 than 



the 



more 



exceeded 

 crop by 

 270,000,000 bushels. 



Wheat Classifica- 

 tion. Wheat has 

 been classified by dif- 

 ferent writers in sev- 

 eral ways. Hackel * 

 divided the genus into 

 two sections, Aegilops 

 and Sitopyros, and 

 placed all the culti- 

 vated species under 

 the last section. Un- 

 der this section he 

 then places: (i) Ein- 

 korn, (2) Spelt, (3) 

 Emmer, (4) Com- 

 mon or Bread Wheat, 

 (5) Club, (6) Pou- 

 lard, (7) Polish and 

 (8) Durum wheat, 

 each as a separate 

 type. 



The classification 

 of wheat as made 

 by Carleton f is on 

 a wholly different 

 basis than that of 



Hackel, and is based almost wholly on the char- 

 acter of the grain produced. This classification 

 includes: (i) Soft, (2) Semi-hard, (3) Southern, 



* The True Grasses, Edward Hackel. 



f Bulletin No. 24, United States Department Agriculture, Divi- 

 sion P&P. 



TYPICAL HEADS OF FIVE COMMON VA- 

 RIETIES OF BREAD WHEAT. 



I, Wheedling; 2, Dawson golden chaff; 3, Rudy 

 4, K. B. No. 2; 5, Turkey red. 



