HARD RED WINTER WHEATS IN DRY AREAS 23 
The experiments have been grown on summer fallow. Single 
lats were grown from 1909 to 1916, inclusive, acre plats being used 
fran 1913 to 1916. Since 1917 the varieties have been grown in 
five systematically distributed plats one-fiftieth acre in size. 
During the 14-year period from 1909 to 1922, 33 varieties or strains 
of winter wheat were included in the experiments at Moccasin. 
Two strains of Kharkof have been used as the standard, C. I. No. 
1442 from 1909 to 1917, inclusive, and C. I. No. 1583 from 1918 to 
1922, inclusive, although the latter was grown during the entire period. 
It had succeeded the former during the first nine years by 1.7 bushels 
peracre. During the five years from 1918 to 1922, inclusive, Kharkof 
(C. I. No. 1583) was exceeded in yield only by the Karmont, which 
is a selection of it developed at the Moccasin station. 
GREAT Basin AREA 
Varietal experiments with hard red winter wheat have been con- 
ducted at five cooperative field stations in the Great Basin area. At 
Moro, Oreg., and Nephi, Utah, conditions are rather favorable for 
the production of winter wheat, while on nonirrigated land at the 
other three stations yields are very poor, owing largely to low pre- 
cipitation and to injury from pests. Summer frost injury fre- 
quently occurs at Burns, Oreg. 1 of the yields reported here were 
obtained on summer-fallowed land. | 
RESULTS AT NEPHI, UTAH 
The Nephi substation is located in the Juab Valley in the eastern 
art of Juab County, Utah, near the summit of the Levan Ridge. 
his is a ridge of land a few miles in width extending transversely 
across the valley floor south of the town of Nephi. The soil is a 
sandy clay loam. The altitude at the town of Nephi is 5,580 feet. 
The exact altitude of the substation on the ridge, 6 miles distant, has 
not been determined but is thought to be nearly 6,000 feet. The 
average annual ea es is 13.27 inches in a 22-year period. The 
experiments at Nephi were conducted cooperatively by the Utah 
Agricultural Experiment Station and the Office of Cereal Investi- 
gations. The yields of the winter-wheat varieties at Nephi are 
shown in Table 13. 
The varieties were grown in single plats from 1908 to 1913, inclu- 
sive, in duplicate plats from 1914 to 1916, inclusive, and in three 
systematically distributed plats from 1917 to 1921. All plats were 
one-tenth acre in size unless otherwise stated. 
Results of varietal experiments with hard red winter wheat were 
obtained at Nephi during 14 seasons. The 14-year average yield 
of Kharkof was 21.2 bushels per acre. Of the varieties grown three 
yee or more, only four had higher comparative yields than Khar- 
of. Crimean, C. I. No. 1437, produced an average of 1.6 bushels 
per acre more than Kharkof in 14 years. Based upon the odds 
this difference is not significant. The three other varieties produced 
average acre yields of not more than half a bushel above the yield 
of Kharkof. The yields of most of the hard red winter varieties 
were not greatly different from that of Kharkof. In 2-year experi- 
ments Minturki and Blackhull show promise. 
