10 
BULLETIN 450, U. S. DEPARTMENT OF AGRICULTURE. 
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that of other varieties. A preliminary test, however, indicates the 
Ghirka to be about three-fourths as hard as the Haynes Bluestem raid 
about one-half as hard as Kubanka durum wheat. This confirms the 
general opinion that Ghirka is a senii- 
sz) /' hard rather than a hard wheat. 
Many milling and baking tests have 
been made of Ghirka wheat grown 
at various stationSj but the methods 
used by the investigators have varied. 
For several years the Office of Cereal 
Investigations and the North Dakota 
Agricultural Experiment Station 
have studied the milling and baking 
qualities of the principal wheats 
grown at the Dickinson substation. 
During three years, 1911, 1913, and 
1914, the method used was the same. 
These data compare the milling and 
baking qualities of the Ghirka with 
those of the wheats already compared 
with it in regard to yield. The data 
for the Ghirka, Kubanka, and Haynes 
varieties are strictly comparable. 
The results from the Rysting in 1911 
and 1913 have been combined with 
those from the Glyndon in 1914 to 
make the data somewhat comparable 
with those on yield. The annual and 
average results are given in Table 
III. In figure 4 only the average 
results are shown. 
In 1911, data were obtained on the 
yield of straight flour and on the vol- 
ume, color, and texture of the loaf. 
The Ghirka produced the lowest yield 
of flour and scored lowest hi texture. 
The loaf volume was greater than that 
from the Rysting and the Kubanka, 
and the color of the loaf was better than that from the Kubanka. The 
Haynes gave the highest yield of straight flour, as well as the largest 
volume of loaf. The Rysting had the best color and texture of loaf. 
In 1913, data on the crude-protein content of the kernel and on 
loss in milling were obtained for the first time. In that year the 
Ghirka was highest in loaf volume but lowest in crude-protein con- 
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CO COP OF LOAF 
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TEXTURE OF LOAF '/, 
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Fig. 4. — Diagram showing the average results 
of mining and baking tests of four varieties 
of wheat grown at the Dickinson substation 
during 1911, 1913, and 1914. 
