58 



BULLETIN 618, XT. S. DEPARTMENT OP AGRICULTURE. 



Table XXXIII. — Average yields of the highest yielding variety of durum wheat and the 

 highest yielding variety in one or more of six different groups of common wheat grown 

 at thirty experiment stations in the western United States ana Canada under humid, semi- 

 arid, and arid conditions during some of the twenty-two years from 1895 to 1916, 

 inclusive. 



Section 1. — Yield per Acre of the Best Variety in Each Group (Bushels). 



Area and station. 



Num- 

 ber of 

 years 

 grown. 



Durum. 



Crimean 

 (winter). 



Fife. 



Pres- 

 ton. 



Blue- 

 stem. 



White 

 Austra- 

 lian. 



Baart. 



Prairie (subhurnid area): 



6 

 3 



1 

 5 



12 

 4 

 4 

 5 

 7 



11 



14 

 9 

 5 

 4 



12 

 8 

 9 



11 

 5 



10 

 8 

 7 



11 



13 



8 

 2 

 4 

 6 

 7 

 3 



12.0 

 12.6 

 16. 5 

 21.5 

 19.7 

 23.0 

 31.6 

 25.7 

 35.9 



9.5 

 3.8 

 21.5 

 12.2 

 13.6 

 16.2 

 13.9 

 17.2 

 21.5 

 26.4 

 24.5 

 35.0 

 29.9 

 42.7 

 40.3 



10.2 

 7.8 

 10.7 

 18.7 

 ft 23. 7 

 29.3 



23.2 



40.1 



33.2 



34.5 



c23.9 



6 23.6 



6 46:0 















o7.5 



a 4. 5 



a 6. 6 















6 26.7 

 12.7 

 20.0 

 36.5 

 23.8 

 24.7 



24.9 

 16.2 



6 18.2 

 34.9 

 20.5 



d23.9 



9.1 



22.7 

 12.1 

 24.9 

 30.9 

 20.1 

 28.3 















St. Paul, Minn 







i 











Great Plains (semiarid area): 



12.4 

 14.0 

 21.6 

 22.1 

 15.0 

 el7.8 

















17.6 

 10.7 

 10.9 

 11.5 

 617.5 

 13.1 

 14.9 

 19.4 

 19.4 

 33.0 

 26.3 

 34.6 

 38.4 



16.9 

 6.4 

 12.1 

 13.5 



7.6 

 /■12.6 



14.4 



<U9.4 



17.4 



30.8 



27.1 









North Platte, Nebr 











7.5 

 11.2 



6. 5 

 12.0 

 15.0 

 19.0 

 16.7 

 31.3 

 <U7.0 



















Newell, S. Dak 



26.0 







Edgeley, N. Dak 

















d 9.3 



17.7 

 35.0 







Williston, N. Dak 





















26.0 

 12.3 

 20.0 

 26.1 



38.5 









Western basin and coast(arid area): 













8.8 



18.7 



d 25. 8 



10.3 

 6 20.4 

 <*32.0 



6.7 



10.7 

 22.0 

 22.2 

 36.4 

 30. 1 



8.6 





22.2 





25.4 



Chico, Cal 



40.0 







26.3 



46.5 





44.4 









Section 2. — Yield per Acre Expressed as a Percentage of the Yield of Durum. 



Prairie (subhumid area): 



6 

 3 

 1 

 5 

 12 

 4 

 4 

 5 

 7 



11 



14 

 9 

 5 

 4 



12 

 8 

 9 



11 

 5 



10 

 8 

 7 



11 



13 



8 

 2 

 4 

 6 

 7 

 3 



100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 



100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 



100 

 100 

 100 

 100 

 ft 100 

 100 



184.2 



318.0 



201.0 



160.5 



c 108. 1 



6 100.8 



6 136.8 















a61.5 



o36.9 



a 54.1 















6 126. 5 

 64.5 

 87.0 

 115.5 

 92.6 

 68.8 



115.8 

 82.3 



6 77.8 



110.3 



79.8 



d66.6 



95.8 



105.6 

 61.4 



108.2 

 97.7 

 78.2 

 78.9 



















St. Paul, Minn... 





















Great Plains (semiarid area): 



130. 5 

 384.3 

 100.5 

 181.0 

 110.2 

 e 130.0 

















si. 9 

 87.7 

 80.2 

 71.0 

 6 84.2 

 76.2 

 69. 3 

 73.5 

 79.2 

 94.3 

 88.0 

 81.0 

 95.3 



78. 6 



52.4 



89.0 



83.4 



54.6 



/81.3 



83.7 



d77.0 



84.9 



88.0 



90.7 



73.8 



95.5 









North Platte, Nebr. . . 











55.2 

 69. 2 

 4(1.8 

 69. S 

 69.8 

 72.0 

 68.2 

 89.4 

 d75.0 













Eureka, S. Dak 







Newell, S. Dak... 



151.1 







Edgeley, N. Dak. . 















d35.6 

 50.6 

 117.1 







Williston, N. Dak.. 





























Western basin and coast (arid area) : 



254.8 

 157.7 

 186.8 

 139.5 











112.8 



174.8 



d 121. 1 



132.1 

 6 175. 8 

 d 150. 2 



85.9 



137.2 

 205.5 

 118.7 

 153.6 

 123.2 



110.2 





207.3 





135.8 



Ohieo, Cal 



168.7 







89.8 



158.6 





151.6 









a Average for 2 years only. 

 6 Average for 3 years only. 

 o Average for 10 years only. 



d Average for 4 years only. 

 « Average for 5 years only. 

 / A vera e for 7 years only. 



9 Average for 6 years only. 



ft Average of all durum varieties grown. 



