22 



BULLETIN 1039, U. S. DEPAETMENT OF AGRICULTURE. 



Table XIII. — Average agronomic data for three varieties of tvinter wheat grown 

 on (try land on the Belle Fourche Experiment Farm, 1908 to 1911, inclusive. 





Variety. 



C.I. 

 No. 



Date of — 



Height.!) 



Weight 



per 

 bushel. 



Yields per acrc.c 





Head- 

 ing.a 



Matur- 

 ity.« 



Grain. 



Straw. 





1442 

 1583 

 1571 



June 29 

 do., 

 do.. 



July 25 

 do .. 

 do.. 



Inches. 

 33 

 33 

 33 



Pounds. 

 59.5 

 .59.1 

 59.3 



Bushels. 

 23.8 

 23. 3 

 23.5 



Pounds. 

 2, 319 



Do 



2, 340 





2,347 







a Average for 6 years, 1910 and 1913 to 1917, inclusive. 



b Average for 8 years, 1908 to 1910 and 1913 to 1917, inclusive. 



c Average for 10 years, 1908 to 1917, inclusive. 



EXPEMMENTS WITH WINTE1^^\■HEAT SELECTIONS. 



About 600 selected heads of Turkey, Kharkof , and Crimean wheats 

 were sown in head rows in the fall of 1908. Practically all of these 

 were sown in 60-foot rows the following year and many of them for 

 several years following. The selections giving the highest yields in 

 the nursery were later grown in plats. About 35 of these selections 

 v>'ere sown in plats in the fall of 1910, but they failed on account of 

 drought. A few selections were again sown in plats in the fall of 

 1912 and these produced a crop in 1913. 



Several additional selections which had shown high yields in the 

 nursery experiments were sown in plats in the fall of 1914. The 

 better strains were continued in the plats in 1916 and a few in 1917. 

 The 1918 crop was entirely winterkilled. The yields are shown in 

 Table XIV. 



Table XIA". — Yields of the icinter-irheat selections compared irith the vnselected 

 parent varieties gnnvn on dry land on the Belle Fourche Experiment Farm, 

 1913 to 1917, inclusive. 



Group and variety 



CI. 



No. 



Yields per acre (bushels). 



1913 



1914 



1915 



1916 



1917 



Average. 



Crimean: 



1442 

 4207 

 3055 





28.7 

 28.6 

 29.6 

 27.1 



53.0 

 51.6 

 53.3 

 55. 4 

 .57.7 

 42.7 

 47.0 

 .52. 

 47.0 



13.4 



4.7 





Do 



17.9 

 20.7 



24.2 





Turkev 



12.4 

 1.5.3 

 14.1 



7.9 



8.9 



24.8 



Turkey selection 159 



26.1 



Turkey selection 173 







Turkey selection 209 











Turkev selection 285 





1 



12.3 

 13.3 

 13.3 







Turkev selection 296 . . 





21.4 

 17.7 

 10.9 



27.3 

 26.2 



7.3 



24.2 



Crimean selection 378 















Alton C&wnless): 



5298 



30.8 



46.6 

 43.9 



49. 8 

 49.4 



11.9 

 9.1 

 12.1 

 10.5 



7.1 











Alton selection 352 



5299 

 5300 



15.6 

 10.9 



31.2 

 31.8 



6.8 

 4.8 



23.1 



Newton (Alton selection 367). 



22.7 



■ 



Four selections were grown during each of the five years, and seven 

 others were grown from one to four years each. I'urkey, C. I. No. 



