24 



BULLETIN 297, U. S. DEPARTMENT OF AGRICULTURE. 



produced. The highest yield was obtained from the Beloglina, C. I. 



No. 2239. 



Of the fourteen varieties and strains of winter wheat grown on the 



Belle Fourche Experiment Farm only five have been sown in each of 



the six years. The 

 average date of 

 heading and of ma- 



Y/ELD /=£/? ACP£. 



a /*/!/? a or, c./. A/a /i-ts. 



XtMtfKOr, CJ. /SO. /S83. 



TU/tKEY. C.A A/O. /S7/. 



TURX£Y. C./. WO. /SS8. 



C#/M£AN, C /. /TO. /437. 



me 2/jbu 



I 20.7SU 



I ZO. 6 SO. 



W20.2BO 

 (9.7 B (J. 



Fig. 6.— Diagram showing the average yields per acre, in bushels, 

 of the leading varieties of winter wheat at the Belle Fourche Experi- 

 ment Farm, for six years, 1908 to 1913-, inclusive. 



turity, weight per 

 bushel, and yield of 

 grain and of straw 

 of these five varie- 

 ties are given in 

 Table XIII. The 

 yields of grain are shown graphically in figure 6. Table XIII shows 

 that there is practically no variation in the date of heading and of 

 maturity and in the weight per bushel of these stocks and that the 

 variation in yield of grain and straw is very slight. 



Table XIII. — Average dates of heading and of maturity, weight per bushel, and yields of 

 five varieties of winter wheat grown continuously on the Belle Fourche Experiment 

 Farm, 1908 to 1913, inclusive. 





Variety. 



Date of — 



Weight 



per 

 bushel. 2 



Yield per acre. 



C.I. No. 



Heading. 1 



Matu- 

 rity.i 



Grain.s 



Straw.-* 



1442 





June 17 

 ...do 



July 11 

 ...do 



Pounds. 

 60.9 

 60.3 

 60.7 

 60.8 

 60.4 



Bushels. 

 21.2 

 20^7 

 20.6 

 20.2 

 19.7 



Pounds. 

 1,860 



1583 



Do 



1,994 



1571 





...do 



...do 



...do 



1,842 



1558 





...do 



1,7''S 



1437 





June 16 



...do 



1,924 









1 Average for 1910 and 1913 only. 



2 Average for 1908-1910 and 1913 only. 



3 Average for the enlire period of six years, 1908-1913. 

 i Average lor 1908, 1910, 1911, 1912, and 1913. 



LEADING VARIETIES OP WINTER WHEAT. 



The leading varieties of winter wheat at Newell arc the Kharkof , 

 Turkey, and Crimean. These varieties all have bearded heads, with 

 white, hairless chaff, and hard red kernels. They all were imported 

 from southern Russia, the Kharkof and Crimean by the United 

 States Department of Agriculture and the Turkey by Russian immi- 

 grants and by commercial agencies. They are not distinguishable 

 in appearance and differ only slightly in yield and in hardiness. It is 

 probable that the Kharkof is slightly hardier than the Turkey or the 

 Crimean, and for this reason it is to be preferred for sowing in western 

 South Dakota. 



DATE-OF-SEEOINd TEST OK WINTKK WHEAT. 



A dato-of-seeding test has been conducted each year at Newell 

 with. Turkey winter wheat, C. I. No. 3055. In this experiment, plats 

 have been sow r n about the first and fifteenth of each month, from 



