BULLETIN 450, U, S. DEPARTMENT OF AGRICULTURE. 



N.P/l/rOT/l 



period of seven years from 1908 to 1914, inclusive. Yields of Ku- 

 banka durum wheat (C. I. No. 1440) and Haynes Bluestem wheat 

 (C. I. No. 2874, Minn. No. 169) for the same years at the same stations 

 are given for purposes of comparison. 



It is desirable to compare the performance of Ghirka Spring with 

 that of some other Fife wheat, but no one variety of Fife wheat 

 other than Ghirka has been grown at all of the seven stations diu-ing 

 this entire period. However, the Rysting Fife (C. I. No. 3022) has 

 been grown at more stations during the period than any other variety 

 of this group and is chosen for comparison. Yields of Glyndon Fife 

 (C. I. No. 2873) have been substituted at the stations where the 

 Rysting was not grown. The two varieties are very similar in 

 appearance and are only . different strains of Fife wheat. 



The seven stations for which results ^ are presented are Moccasin, 

 Mont.; Wilhston, Dickinson, and Edgeley, N. Dak.; and Brookings 



Highmore, and New- 

 ell, S. Dak. The lo- 

 cation and elevation 

 of these stations are 

 shown in figure 2 . At 

 all the stations except 

 Edgeley, the work was 

 conducted coopera- 

 tively by the United 

 States Department of 

 Agriculture and the 

 State experiment sta- 

 tions. At Edgeley the 

 tests were conducted 

 entirely by the State, 

 and the results given are quoted from the pubhshed annual reports 

 of that substation for 1908 to 1913, inclusive. The results for 1914, 

 not yet pubhshed, were kindly furnished by O. A- Thompson, super- 

 intendent of the Edgeley substation. 



The annual and average yields of four varieties of wheat, Kubanlja 

 durum, Ghirka Spring, Rysting or Glyndon Fife, and Haynes Blue- 

 stem, grown at seven northern Great Plains experiment stations for 

 the 7-year period from 1908 to 1914, inclusive,^ are shown in Table I. 

 The average yield of each variety for each station and ajso the average 

 for all stations are shown graphically in figure 3. 



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Fig. 2. — Sketch map of the northern Great Plains area, showing the 

 location and elevation (in feet above sea level) of the seven experi- 

 ment stations, results from which are discussed in this paper. 



1 These data have been accumulated at the various stations by the following members of the scientific 

 staff of the Office of Cereal Investigations: Manley Champlin (Brookings, S. Dak.); Charles H. Clark, 

 J. A. Clark, and R. W. Smith (Dickinson, N. Dak.): J. D. Morrison (Highmore, S. Dak.); E. L. Adams and 

 N. C. Donaldson (Moccasin, Mont.); Cecil Salmon and J. H. Martin (Newell, S. Dak.); and F. R. Babcock 

 (Williston, N. Dak.). 



2 The manuscript of this bulletin was prepared in the spring of 1915, but publication has been 

 unavoidably delayed. This bulletin tacludes experimental results only to the end of 1914. 



