CEREAL EXPERIMENTS AT JUDITH BASIN SUBSTATION. 17 
Table XI shows that with the exception of the Crimean (C. I. No. 
1435) there is little 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 during the full 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 Kharkof (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 winterkilling 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 op Winter Wheat. 
Of the 24 varieties of winter wheat that are listed 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 Kharkof 
and Crimean scarcely can be distinguished from it. The Kharkof, 
which 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 }deld 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 
