CEREAL EXPEEIMENTS AT JUDITH BASIiST SUBSTATION". 17 



Table XI shows that with the exception of the Crimean (C. I. No. 

 1435) there is httle difference in the average yields of the different 

 varieties. In 1913 the Kharkof (C. I. No. 1583) was grown on the 

 outside plat in the series. There was considerable blowing of the 

 soil during the fall and winter, and in consequence the stand and 

 yield of this plat were reduced. 



SUMMARY OF "WINTER-WHEAT YIELDS. 



Of the varieties that have been tested in plats, only six have been 

 grown diu-ing the fuU period. One additional variety, the Alberta 

 Red, has been grown for six years. The yields of these seven varieties 

 are from acre plats in 1913, 1914, and 1915, and are not quite as high 

 as they would have been had the varieties been grown in small plats 

 under more favorable conditions. 



Table X shows that of these varieties the Kliarkof (C. I. No. 1583) 

 has the highest average yield, 35.7 bushels per acre. This variety 

 was also the highest in average yield in the 3-year and 5-year periods. 

 A study of the yields of the Kharkof (C. I. No. 1583) shows that in 

 1909 and 1910 it was the highest yielding variety. In 1909 the 

 stands of the varieties were reduced by winterkilhng and the Kharkof 

 came through with a higher percentage of survival than any of the 

 others. In 1910, when the seasonal precipitation was the lowest 

 recorded at the substation, the yield of the Kharkof wheat was 

 considerably higher than that of any of the other varieties. 



Leading Varieties of Winter Wheat. 



Of the 24 varieties of winter wheat that are Hsted in Table X no 

 less than 18 belong to the Crimean group. These wheats have 

 bearded spikes with white glabrous glumes and hard red kernels. 

 They were imported into this country from southern Russia and 

 are now extensively grown in the central Great Plains and the Pacific 

 Northwest. They are the most important varieties of winter wheat 

 grown in Montana. 



The Turkey is probably the best known variety, but the Kliarkof 

 and Crimean scarcely can be distinguished from it. The Kliarkof, 

 wliich has been the leading variety of winter wheat at the Judith 

 Basin substation, is thought to be a superior strain of the Crimean 

 group. It seems to be more hardy and to stand drought better 

 than the other varieties, although there are not very large differ- 

 ences in the average yield of the Kharkof, Turkey, and Crimean 

 varieties. 



The Kharkof wheat has been increased for distribution among 

 the farmers. This work was started in 1912 and since that time 

 about 2,000 bushels have been sold from the station to farmers for 



