140 
BULLETIN 1334; U. S. DEPARTMENT OE AGEICULTUEE 
DATA FROM SOUTHERN STATIONS IN THE UNITED STATES 
Two ecological regions have already been described. The first of 
these is the region with the growing and ripening seasons both 
humid. This extends from eastern Canada and the northern sea- 
board of the United States across the Northern States to the Great 
Plains and through the prairie Provinces of Canada. The second 
comprises the region where the rainfall is much less and the ripening 
season comes during a part of the year when the humidity is low. 
This region extends from the northern Great Plains west and south, 
including all the Mountain and Western States. The remaining 
district, a relatively unimportant one in barley production, includes 
the Southeastern States and extends westward, including Texas and 
Oklahoma. The sinnmers here are too hot and humid for the growing 
of spring barley. The barley is fall sown. The varieties used are 
those m_ore than usually winter hardy and adapted to humid condi- 
tions. As heretofore stated, the stations are arranged in order from 
east to west. 
COLLEGE PARK, MD. 
Barley varieties were grown at tlie Maryland Agricultural Experiment Station 
(at College Park) in the years 1908 to 1916, inclusive. The yields of the varieties 
shown in Table 80 were obtained in cooperation with the Maryland station. 
AU of the 15 barleys grown were true winter sorts and were sown in the fall. Only 
four of these were grown for a longer period than three years. Mar^dand Winter 
(C. I. No. 518) was obviously the best of the four. Mammoth Winter (C. I, No. 
410) and Tennessee Winter (C. I. No. 257) produced nearly the same average 
yields for the comparable years, 1908 to 1914, inclusive. Winter Six-R,owed 
(C. I. No. 328) was surpassed by the three mentioned above. AJl four varieties 
are quite similar and belong to the Tennessee Winter group. 
Arhngton Awnless (C. I. No. 702), which was grown from 1913 to 1915, inclu- 
sive, was much inferior in yield to the varieties of the Tennessee Winter group. 
While Arlington Awnless is a very desirable type of barley, it shatters quite easily, 
thus causing the loss of much grain. The only 2-rowed barley grown in this 
experiment was Nesbian (C, I. No. 647), which was tested in 1915. It produced 
a very low yield, as did Osaka (C. I. No. 2798) and Virginia Hooded (C. I. No. 
648), which were also grown in that year. The results at College Park indicate 
that the barleys of the Tennessee Winter type are the ones best adapted to the 
growing conditions of this section of Maryland. 
Table 80. — Annual acre yields of varieties of barley grown at the Maryland Agri- 
cultural Experiment Station {at College Park) in part or all of the nine years 
from 1908 to 1916, inclusive 
[Data obtained 
in cooperation with the Maryland Agricultural Experiment Station] 
Variety 
C.I. 
No. 
Acre jnelds (bushels) 
Years 
grown 
Aver- 
age 
yield 
(bus.) 
Percent- 
age of 
1908 
1909 
1910 
1911 
1912 
1913 
1914 
1915 
1916 
weighted 
mean 
Maryland Winter 
Mammoth Winter 
618 
410 
257 
328 
702 
252 
662 
2797 
206 
337 
199 
221 
647 
2798 
648 
32.9 
23.5 
39.8 
24.7 
"29.'7 
24.1 
'28.' 5 
25.4 
21.6 
17.8 
36.7 
34.7 
29.8 
27.6 
'35.1 
30.4 
32.8 
24.7 
20.1 
20.7 
22.8 
31.9 
33.0 
32.8 
36.4 
42.0 
47.4 
42.6 
33.9 
32.1 
35.2 
31.8 
24.9 
16.4 
37.5 
39.6 
35.8 
35.4 
17.6 
22.7 
48.2 
9 
7 
8 
7 
3 
2 
2 
2 
34.3 
33.4 
31.1 
29.4 
16.6 
32.5 
27.3 
27.7 
28.5 
25.4 
21.6 
17.8 
6.9 
3.5 
2.3 
121.6 
110.2 
Tennessee Winter 
Winter Sis-Rowed 
Arlington Awnless 
Squarehead Winter 
15.7 
'is.'g 
111.9 
97.0 
71.2 
111.7 
Tenarab 
93.8 
Dutrow Winter 
22.6 
98.2 
Han River. . 
106.3 
Black Winter 
94.8 
Albacete 
80.6 
Greece... 
1 
66 4 
Nesbian ... 
6.9 
61.6 
Osaka. 
. 
3.5 
2.3 
31.3 
Virginia Hooded 
20.5 
1 
