28 BULLETIN 297, U. S. DEPARTMENT OF AGRICULTURE. 
again sown in duplicate rows in the fall of 1912, while a few of which 
there was sufficient seed were sown in fiftieth-acre plats. A view of 
the winter-wheat nursery in 1910 is shown in figure 8. 
The average yields of the selections in duplicate 60-foot rows in 
1910, 1912, and 1913 varied from 32 to 65.8 ounces. Most of the 
selections yielded between 48 and 60 ounces. A few beardless races 
which were selected proved to be particularly high in yield. The 
average yield of all nine beardless races was 56.2 ounces, while the 
nine best bearded races produced an average yield of 56 ounces. The 
best beardless race, selection No. 343, produced an average yield of 
65.8 ounces, while the best bearded race yielded 61.4 ounces. 
The beardless races sown in fiftieth-acre plats in 1910 appeared to 
be fully as resistant to drought as any of the bearded races. There 
appeared to be little difference in hardiness between the bearded and 
beardless strains, not only at Newell but also at three other field 
stations in the 
northern Great 
Plains where they 
were tested. The 
erain is very similar 
to that of the Turkey 
and Kharkof wheats 
Fig. 9.—Diagram showing the average yields per acre, in bushels, in quality and ap- 
of the best varieties of winter wheat and each group of spring 
wheat at the Belle Fourche Experimert Farm, for six years, 1908 PDearance. Whether 
to 1913, inclusive. these beardl ess 
strains originated from mechanical mixtures of some beardless fall 
variety, such as Ghirka Winter, or from accidental hybrids between 
a bearded hard winter wheat and a beardless winter wheat was not 
determined. 
WIELDS lag. AGLI 
Q 5 10. 
WINTERS 
COMMON SPAING. 
POWVEPTATEY Film 
HAYNES BLUES 7C/) 
MANCHUA/A.— — -- Se 
COMPARISON OF SPRING AND WINTER WHEATS. 
A comparison of the yields of winter and spring wheat which have 
been obtained at Newell should be of interest and value. The annual 
and average yields of the best varieties of winter, of durum, and of 
common spring wheat are shown in Table XV. The average yields 
are also shown graphically in figure 9. 
The yields of winter wheat in 1908 were slightly larger than those 
of the best durum wheats and exceeded by several bushels those of 
the spring common wheats. In 1909 the yields of winter wheat were 
nearly double those of the durum and more than double those of the 
spring common varieties. Again in 1910 the yields of winter wheat 
were double or more than double those of the spring varieties. In 
1911 no yields of either spring or winter wheat were obtained, while 
in 1912 no grain was produced except by a few varieties of spring 
common wheat. In 1913 the yields of winter wheat were again 
about double those of durum and more than double those of “the 
spring common wheats. 
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