Cereal experiments on the cheyenne experiment farm. 



17 



were obtained, but there was very little fall growth. The plats of the 

 Turkey wheat sown on September 1 and 15 gave the highest yields. 

 With Ghirka Winter, the plats sown on September 1 and 15 and 

 October 1 all yielded practically the same. The September 15 sow- 

 ing gave slightly the highest yield. The results to date seem to indi- 

 cate that early seeding (September 1 to 20) is to be preferred, pro- 

 vided conditions are favorable to germination and fall growth. The 

 farmers in this section practice early seeding when possible. 



Table IX.- — Annual and average yields of the Turkey and Ghirka Winter wheats in a 

 date-of-seeding test on the Cheyenne Experinunt Farm in 1913, 1914, and 1915. 





Yield per acre. 



Variety and date of 



1913 



1914 



1915 



Average. 



seeding. 



1913 to 1915 



1914 and 1915 





Grain. 



Straw. 



Grain. 



straw. 



Grain. 



Straw. 



Grain. 



Straw. 



Grain. 



Straw. 



Turkey: 



Aug. 15 



Bush. 



Lis. 



Bush. 

 



6.8 

 

 

 

 







7.8 



















Lhs. 





 1,145 





 • 













 910 

 

 

 

 



Bush. 

 29.6 

 38.1 

 38.8 

 34.5 

 25.6 



Lhs. 



3,400 



4,460 



4,430 



3,140 



2,220 



Bush. 



Lbs. 



Bush. 

 14.8 

 22.5 

 19.2 

 17.2 

 12.8 



Lbs. 

 1,700 



Sept. 1 











2,802 



Sept. 15 











2,215 



Oct. 1 



8.8 

 8.5 

 6.7 



635 

 673 

 455 



-U.4: 



11.4 



1,258 

 964 



1,570 



Oct. 15 



1,110 



Nov. 1 





Ghirka Winter: 



Aug. 15 



27.0 

 29.3 

 31.3 

 30.1 

 17.1 



2,970 

 3,630 

 4,140 

 3,070 

 1,690 







13.5 

 18.6 

 15.7 

 15.0 

 8.5 



1,485 



Sept. 1 











2,270 



Sept. 15 











2,070 



Oct. 1. 



8.4 

 8.4 

 6.1 



505 

 545 

 390 



12.8 

 8.5 



1,192 

 745 



1,535 



Oct. 15 



845 



Nov. 1 



















I 



SPRING WHEAT. 



Spring wheats are grown as extensively in eastern Wyoming as 

 winter wheats.. A greater number of varieties of spring wheat than 

 of winter wheat have been tested at the Cheyenne Experiment Farm. 

 Tliirty-three varieties and strains have been included in the experi- 

 ments during the three years, 1913, 1914, and 1915. The annual and 

 average yields of these varieties are shown in Table X. 



These varieties may be divided into two classes, common and 

 durum. These classes may be separated further into groups. 

 Eighteen of the varieties are common wheats and 15 are durum 

 wheats. These two classes of wheat and the; most important groups 

 of each which are represented in the Gresit Plains area may be sepa- 

 rated by the foUowing descriptive key: * 



' Ball, C. R., and Clark, .7. A. Varlctios of hard spring wheat. U. S. Dopt. Agr., I'^armors' Bui. (iHO, 

 p. 6, 9, 18. 191'). 



5.565(}°— Bill 1 . 4.".f)— I C, :i 



