CEREAL EXPERIMENTS AT DICKINSON, N. DAK. 



17 



Table VIII.- 



-Actual and computed (annual and average) yields of seven stand- 

 ard varieties of spring wheat, etc. — Continued. 





Group and variety. 



Yield per acre (bushels). 





1907 



1908 



1009 



1910 



1911 



1913 



Average. 



C.I. 



No. 



6 

 years, 

 1907 to 

 1911 

 and 

 1913. 



5 



years, 



1908 to 



1911 



and 



1913. 



3 



years, 

 1910, 

 1911, 

 and 

 1913. 



1440 



COMPUTED YIELDS. 



Durum: 





23. 2 

 22.4 



23.5 

 23.5 



42.5 

 36 



28.9 

 33.4 



10.9 

 22.4 



27.3 

 21.6 



21.7 



11 

 5 10.9 



3.5 

 3 3.3 



9.5 

 9 



9.9 



7.6 

 9.6 



31.7 

 30.6 



26.6 

 28.1 



21.4 



28 

 26 





24.2 

 22.9 



23.2 

 23.1 



18.4 



1494 







18.8 



1517 



Fife: 





21.1 



3022 







19.6 



3081 



Bearded fife: 





18.7 



3314 



Bluestem: 



Crossbred (N. Dak. No. 318) . 





22.3 

 22.3 



30.9 

 30.5 





20 

 19.9 



15.5 



3020 







15.2 











i For 1907 and 1908, Kubanka (C. I. No. 1440); for 1009 to 1913, Kubanka No. 8 (C. I. No. 4063), a pure- 

 line selection from C. I. No. 1440 made at Dickinson, N. Dak. 



2 For 1907 to 1910, Arrautka (C. I. No. 1404); for 1913, Arnautka6Pl (C. I. No. 4046), a pure-line selection 

 from C. I. No. 1494 made at Akron, Cclo. 



3 Estimated from yield of Kukanka (C. I. No. 1440). 



* For 1907 to 1909, Haynes Bluestem (C. I. No. 3020); for 1911 and 1913, Haynes Bluestem (C. I. No. 2870). 

 These two lots of seed were from the samo original source the Minnesota Agricultural Experiment Station. 

 5 Estimated from yield of Crossbred (C. I. No. 3314) 



Of all the varieties tested, a few of outstanding merit should be 

 more widely known. With a full knowledge of each of the leading 

 varieties, the individual farmer can decide which he prefers to grow. 

 He can then, by careful cleaning and grading of the seed, maintain 

 the quality of his crop and keep it above the average. 



THE DURUM GROUP. 



The Kubanka and Arnautka have proved to be the best of more 

 than 20 varieties of durum wheat tested at Dickinson. These 

 varieties are very similar in appearance. Both have long yellowish 

 beards, smooth yellow chaff, and very hard, clear amber grain. 1 



Kubanka, — The Kubanka (C. I. No. 1440) is considered the best 

 durum wheat for western North Dakota. The plants are taller than 

 the spring common wheats. The heads are short and broad (fig. 4) 

 and the grains large. This wheat was introduced into the United 

 States from Russia in 1899 by Mr. M. A. Carleton, Cerealist of the 

 United States Department of Agriculture. In the tests at Dickinson 

 it has been one of the leading varieties nearly every year. Its 

 superiority over other durum wheats was early recognized, and a 

 number of pure-line selections were made in 1906 by Mr. L. R. 

 Waldron. One of these, Kubanka No. 8 (CI. No. 4063), has proved 



1 For a more complete discussion of durum wheat, see Salmon, Cecil, and Clark, J. A., 

 Durum wheat, IT. S. Dept. Agr., Farmers' Bui. 534, 16 p., 4 fig., 1913. 



62800°— Bull. 33—14 3 



