36 BULLETIN 823, IT. S. DEPARTMENT OE AGRICULTURE. 
VARIETAL EXPERIMENTS IN THE WESTERN HALF OF THE UNITED 
STATES. 
In recent years the Kherson and Sixty-Day oats have been included 
in numerous varietal experiments conducted in the western United 
States. Because of the rapid agricultural development which is now 
taking place in this region, there is a great demand for information 
on the different varieties of the more important grain crops. In 
consequence, rather extensive varietal experiments with oats have 
been conducted at numerous stations and the results reported from 
time to time. Results from 25 experiment stations and farms located 
in 12 States are presented in this bulletin. 
This portion of the United States, including those States from 
which no experiments with oats have been reported, may be divided 
as follows: The northern Great Plains area, the southern Great 
Plains area, and the western Great Basin and coast areas. The few 
results available from experiments conducted under irrigation also 
are reported. The general physical data will be discussed separately 
for each of these three subdivisions. 
The experiments at Hays, Kans. ; Newell, Highmore, Cotton- 
wood, and Eureka, S. Dak. ; Williston and Dickinson, N. Dak. ; 
Moccasin, Mont.; Nephi, Utah; Aberdeen, Idaho; and Burns and 
Moro, Oreg., have been conducted cooperatively by the United 
States Department of Agriculture and the State agricultural experi- 
ment stations of those States, respectively. At other stations the 
agencies cooperating with the United States Department of Agri- 
culture have been as follows: Amarillo, Tex., Amarillo Chamber of 
Commerce; Akron, Colo., and Mandan, N. Dak., Office of Dry-Land 
Agriculture Investigations; Archer, Wyo., Wyoming Board of Farm 
Commissioners; and Chico, Calif., Office of Foreign Seed and Plant 
Introduction. The experiments at North Platte, Nebr.; Edgeley 
and Langdon, N. Dak. ; Reno, Nev. ; Bozeman, Mont. ; Gooding, 
Idaho; Pullman and Puyallup, Wash., have been conducted inde- 
pendently by the respective State agricultural experiment stations. 
RESULTS IN THE NORTHERN GREAT PLAINS AREA. 
The Great Plains area comprises the great extent of gently sloping 
plain lying between the 98th meridian and the foothills of the Rocky 
Mountains. The northern Great Plains area includes the semiarid 
portions of Nebraska and the Dakotas west of the 98th meridian and 
also northeastern Colorado, eastern Wyoming, and eastern Montana. 
Varietal experiments with the Kherson and Sixty-Day oats and a 
large number of other varieties have been conducted under dry-land 
conditions at 13 experiment stations in this section during periods 
varying from 2 to 12 years. The stations are as follows: Moccasin, 
Mont. ; Williston, Dickinson, Mandan. Edgeley, and Langdon, N. Dak. ; 
