HARD RED WINTER WHEATS IN DRY AREAS 13 
have been conducted cooperatively by the Office of Cereal Investi- 
gations and the Kansas Agricultural Experiment Station. The yields 
are Shown in Table 4. 
The varieties were grown in single plats from 1912 to 1916. Since 
1917, four systematically replicated plats of each variety were grown, 
unless noted, except in 1918, when five plats of each variety were used. 
Summer-fallowed land was used for the experiments from 1912 to 
1918, but since 1919 two plats have been grown on cropped land and 
two on summer fallow. 
Of the varieties grown during three or more years, Blackhull, 
Kanred, P—1066, and P—1068 have distinctly exceeded the standard 
Kharkof, C. I. No. 2193. A few other varieties have exceeded 
Kharkof by an average of less than 1 bushel per acre. Blackhull and 
Kanred show the highest comparative yields. During the 4-year 
period in which both have been grown Kanred has yielded 0.7 bushel 
more per acre than Blackhull. 
RESULTS AT AKRON, COLO. 
The Akron Field Station of the Office of Dry-Land Agriculture 
Investigations at Akron, Colo., lies at an altitude of 4,560 feet on a 
sandy loam soil. The average annual precipitation in the past 18 
years has been 18.79 inches. Experiments with winter wheat have 
been conducted there since 1908 in cooperation with the Office of Dry- 
Land Agriculture Investigations. The yields are shown in Table 5. 
The varieties were grown in single plats from 1908 to 1916, in 
duplicate plats in 1917, and in four systematically replicated plats in 
1918 and from 1920 to 1922, inclusive. Summer-fallowed land was 
used for the varieties from 1908 to 1917, but since 1918 two plats 
have been grown on cornland and two on summer fallow. 
All varieties were completely winterkilled in 1909. Experiments 
with winter wheat were not sown in the fall of 1918, so no yields were 
obtained in 1919 except from increase plats of Kanred and Kharkof. 
Kanred has produced the highest comparative yield during the period 
in which it has been grown. Other varieties or strains, grown during 
three or more years, which have outyielded the standard Kharkof, 
C. I. No. 1442, include Alberta Red, three lots of Crimean (C. I. 
Nos. 1436, 1437, and 1559), two other lots of Kharkof (C. I. Nos. 
1583 and 4207), Malakof, Turkey (C. I. No. 1571), and Alton. Of 
these latter strains, however, only Kharkof, C. I. No. 1583, appears 
significantly better than the standard Kharkof. 
RESULTS AT ARCHER, WYO. 
The Cheyenne Field Station at Archer, Wyo., is located on a loam 
that is fairly sandy, containing some gravel. The altitude is almost 
exactly 6,000 feet. The normal rainfall is only 13.6 inches. The 
rainfall records are mostly from Fort D. A. Russell, near Cheyenne, 
9 miles distant, where conditions probably are slightly more favorable 
than at Archer. The conditions of high altitude and northern lati- 
tude allow only a short growing season and this, combined with the 
low rainfall, makes crop growing somewhat difficult. The experi- 
ments were started in 1913 and were conducted by the Office of 
Cereal Investigations in cooperation with the Wyoming State Board 
of Farm Commissioners. In 1919 a change in the State law made the 
director of the Wyoming Agricultural Experiment Station the chair- 
man of this board. 
