CEBEAL EXPERIMENTS ON" THE CHEYENNE EXPEEIMENT FARM. 13 



enough, the next spring to make fair yields. The rainfall during the 

 growing season was below normal. 



In 1914, 15 varieties and strains of winter wheat were grown in 

 tenth-acre plats on fallow land. The land was plowed in the faU of 

 1912 and left rough until the sprmg of 1913, when it was double- 

 disked and kept free from weeds during the summer. The varieties 

 were sown September 9, 1913. The fall of 1913 was wet, and good 

 stands of aU varieties were obtained. The winter wheats were 3 to 6 

 inches high when winter began. The winter was cold and open, and 

 practically all varieties winterkilled considerably. A few plats 

 apparently were favorably located, and on these the winter survival 

 was much higher than on the others. The winterkilling was not 

 uniformly distributed on the plats, but occurred ui patches or streaks. 

 The survival of a variety did not necessarily indicate winter hardi- 

 ness, since the same variety sown on different plats had a markedly 

 different winter survival. However, certain soft winter wheats less 

 hardy than those of the Crimean group were entirely winterkilled. 

 It is beheved that the yields reported in Table VI are representative 

 of what could reasonably have been expected from winter wheat on 

 fallow land in 1914, as winterkilling was quite general on farms in 

 the vicinity. The precipitation for the growing season was below 

 normal, as shown in Table I. 



Table VI. — Annv/il and average yields of varieties of winter wheat grown on the Cheyenne 

 Experiment Farm in 1913, 1914, and 1915. 





CI. No. 



Yield per acre (bushels). 



Group and variety. 



a 1913 



1914 



6 1915 



Average. 





3 years, 

 1913 to 



2 years, 

 1914 and 













1915. 



1915. 



Crimean: 



Kharkof 



1442 



9.8 



4.7 



37.1 



17.2 



20.9 



Crimean 



1559 



9.7 



3.2 



38.6 



17.2 



20.9 



Do 



1432 



9.5 



4.7 



36.1 



16.8 



20.4 



Turkey 



1571 



10.0 



c7.9 



32.0 



16.6 



20.0 



Malakoff 



2908 



10.3 







37. 6 



16.0 



18.8 



Crimean 



14.37 



9.2 



2.5 



35. 1 



15. 6 



18.8 



Turkey 



Alberta Red 



2998 

 2979 

 1543 

 1.583 

 1355-2-2 



14.38 

 1359 

 3.330 

 1632 







9.3 



13.7 

 7.7 

 5.0 

 6.0 

 4.0 



7.8 

 4.5 

 12.8 

 5. (1 



82. 5 

 37.8 

 36.8 



35. 6 

 32. () 



37. (> 

 38. 

 27.1 

 32.8 



18.2 



23.1 



22.8 





20.9 



Kharkof 



20.8 





18.3 



Misw^Ilan^ous: 



fJhirka Winter 



22.7 



I^ifhl Mediterranean 



21.3 



Hiitrum No. 17 



20.0 





19.2 







o Average of 2 tenth-acre plats. 

 '' AveraKO of 3 thirtieth-acre plats. 



e Average of 3 tenth-acre plats (checks). 



For the 1915 crop the winter wlioat varieties were sown on vSop- 

 temlxT X, 1911, in triplifiile on lliiftieth-afn^ plats. They wenr sown 

 on full-plowed fiiJJovv land tlmt liad been kept free fioin weeds during 



