158 BULLETIN 1334^ U. S. DEPARTMEI^T OF AGEICTJLTTJEE 
irrigation. In Idalio, Oregon, and Washington Coast is the dominant 
variety, although Trebi, White Smyrna, Club Mariout, Beldi 
Giant, and other varieties of the Coast type are promising. In 
California the barley acreage and production exceed those of any 
other State. By far the most important variety is Coast. California 
Mariout is grovn in parts of the interior valleys where warmer and 
drier conditions prevail. There is an increasing acreage of Club 
Mariout in the Sacramento Valley and in the northern portion of the 
San Joaquin Valley, where it brings good prices for export. 
WINTER BARLEYS FOR HUMID AREAS 
The humid winter-barley region extends from the Atlantic sea- 
board to western Texas and as far north as central Ohio, including 
several very different areas: The Piedmont, the Coastal Plain, the 
southeastern mountain section, the Ohio Valley, and the southern 
area w^est of the Mississippi. Winter barleys are grown in only a few 
sections of the South, the center of production being in Tennessee. 
Experiments in this region have been few. Occasional satisfac- 
tory yields have been obtained, but the available information is so 
meager that conclusions are quite untrustworthy. The fact that 
barley is not growm is an indication of its lack of suitability. 
The potential economic importance of barley in the Coastal Plain 
section is great. Most of the hogs of this plain are fattened on 
peanuts, resulting in soft pork. Barley is one of the best of all feeds 
for hardening pork. Where it can be grown here it will assist greatly 
in establishing the hog industry on a satisfactory basis. Unfor- 
tunately barley is not very promising when grown under Coastal 
Plain conditions. 
Much higher yields have been obtained in the Piedmont region. 
This section is much better suited to production than the Coastal 
Plain, but even here barley does not grow particularly well. 
In eastern Tennessee barley is an important crop. Here both 
climatic and soil conditions are favorable. The dominating variety 
is Tennessee Winter, the most frost-resistant variety known in humid 
climates. Kecently Professor Mooers, of the Tennessee Agricul- 
tural Experiment Station, has developed some hooded hybrids which 
seem to be true winter barleys and have done w^ell in Tennessee. 
The northern limit of safe cultivation of Tennessee Winter barley 
is rather indefinite. Besides the area under cultivation in Ten- 
nessee, some winter barley is grown commercially in Ohio, and there 
is even a small acreage in Michigan. Barley winterkills, however, in 
Kentucky and is grown but rarely in northern Ohio. The southern 
limit of wunter-barley production is equally indefinite. The true 
winter sorts are unquestionably the ones best adapted to Ohio, Ten- 
nessee, and northwestern Georgia. South of this area it is probable 
that fall-sown spring varieties are better adapted, although informa- 
tion on this point is very limited. Experiments were conducted at 
Tifton, Ga., in 1921 in cooperation with the experiment station at 
that point. Spring barleys responded favorably to the early season 
which occurred that year, while the winter forms remained dormant 
until the days were of sufficient length to induce flowering. Spring 
barleys under these conditions might be caught by late frosts and 
in the long run prove unsuited. With the information available, 
