TESTS OF BARLEY VARIETIES IJT AMERICA 157 
northern part of this region, but have not proved superior to Hann- 
chen or the Chevalier varieties. 
In addition to the areas mentioned, 2-rowed barleys do well in two 
districts in the West. In Washington and Oregon there is a district 
including Moro, Union, and Burns, Oreg., where Smyrna and 
Hannchen produce high yields, while in a part of the Salinas Valley 
of California practically the only variety grown is a Chevalier 
barley. 
There are thus three distinct centers where different tvpes of 
barleys adapted to humid climates seem to do particularlv well. 
These are (1) the Northeastern States, where Hanna and Manchuria 
do equally well; (2) the upper Mississippi Valley, where the Man- 
churia-Oderbrucker barleys predominate; and (3) the large area west 
of the upper Mississippi Valle}^, where the 2-rowed barleys are well 
adapted, an area included with these districts for two reasons. The 
rainfall, although too light to characterize the region as really humid, 
is a summer rainfall, nevertheless. Man}^ of the varieties grown are 
those originating in humid climates. 
The difficulty of defining either the regions or the range of varieties 
is apparent. The Hanna and Chevalier barleys succeed alon^ the 
Atlantic seaboard from New England to Prince Edward Island, 
because the summers are somewhat similar to the cool rainy summers 
of northern Europe, whence they came. These conditions are par- 
tially fulfilled in the northern Great Plains, where there are sections 
in which they do well despite the lower rainfall and lesser humidity. 
In part of this latter area White SnnTna from the dry coast of Asia 
Minor grows well in the same district as Haimchen from Sweden. 
In the same way the growth of plants on soils of low water content, 
as found in the West where the rainfall comes in winter, is duplicated 
east of the Rocky Mountains on the western Plains, where the rain- 
fall is light and comes in summer. The coast district overlaps the 
western 2-rowed area. Farther south, in western Kansas and adjoin- 
ing sections, it similarly overlaps the border of the hiunid-spring 
region. In this section Coast and Stavropol, allied varieties tolerant 
of more humid conditions, are largely grown, and this section is 
pertinently considered with the western region. 
SPRING BARLEYS FOR SEMIARID AREAS 
West of the Rocky Mountains, Coast is the dommant commercial 
variety, constituting most of the acreage. East of the mountains in 
the Great Plains area its acreage exceeds that of all other semiarid 
barleys, if Stavropol, which is of Russian origin, is excepted. Because 
of the extreme variation in the topography and of the precipitation 
of the region, numerous varieties other than Coast and Stavropol are 
cultivated. Many of these are 6-rowed barleys of North African 
origin. In western Kansas and southern Isebraska the similar 
varieties Stavropol and Coast are widely cultivated. A small part 
of the Colorado acreage is devoted to the growing of hull-less varieties. 
In Colorado, Nebraska, Wyoming, Montana, and the western 
Dakotas the 2-rowed humid-spring types already discussed and a 
number of other types occur. Chief among these are Coast, White 
Smyrna from Asia Minor, Club Mariout of the North African group, 
and Trebi from Asiatic Turkey, the latter usually grown under 
