14 BULLETIN 398, IT. S. DEPARTMENT OF AGRICULTURE. 
EXPERIMENTS WITH WHEAT. 
Wheat is the most important grain crop in Montana. For this 
reason the experiments with this crop have been more extensive 
than those with any of the other cereals. The experiments at the 
Judith Basin substation have included plat and nursery tests with 
both spring and winter wheats. Rate-of-seeding and date-of -seeding 
experiments with these cereals have also been conducted. 
WINTER WHEAT. 
In 1915 the production of winter wheat in Montana exceeded the 
production of spring wheat by nearly 3,000,000 bushels. In the 
Judith Basin winter wheat is grown almost exclusively. In the 
eastern part of the State winter wheat can be grown only in favorable 
years. In some years good yields are produced, but there is likely 
to be winterkilling, so that it is not a sure crop. It is not possible to 
draw any definite fine marking the boundary of the winter-wheat 
area in the State. At Forsyth, in the eastern part of Rosebud 
County, winter wheat can be grown successfully. East of Forsyth 
it can hardly be recommended, although it has been grown as far 
east as Glendive. 
Where winter wheat can be grown successfully it yields more than 
spring wheat. It is thought that the results obtained from the 
winter-wheat tests at the Judith Basin substation are applicable 
wherever the crop can be grown in the State. 
Varietal Experiments in Field Plats, 
annual results. 
The varietal experiments with winter wheat at Moccasin have 
included the varieties and strains that have given the best results in 
the winter-wheat section of the Great Plains area. The varieties 
have been grown on fallow ground each year. The plats have been 
either one-tenth acre or 1 acre. 
In the fall of 1908, 15 varieties and strains of winter wheat were 
obtained from McPherson, Kans. These were sown September 18, 
which is too late for the best results in the Judith Basin. Owing to 
the late seeding there was considerable winterkilling. Six varieties 
sown 10 days later winterkilled entirely. In 1909 nine more varieties 
and strains were obtained from the Nephi (Utah) substation. 
Table X gives the annual and average yields of 24 varieties of 
winter wheat that have been grown at the Judith Basin substation 
during periods of varying length in the seven years from 1909 to 
1915, inclusive. In this table the varieties are grouped according to 
their relationships. Within the groups they are arranged alpha- 
betically. 
