46 BULLETIN" 336, U. S. DEPARTMENT OF AGRICULTURE. 
ton 7 Virginia, and Hansee. At College Park the varieties have 
averaged about 34 inches in height. At Arlington Farm the range 
has been from 30 to 37 inches, with the more important varieties 
averaging about 34 inches. The yields of straw have averaged about 
1 ton to the acre, or rather less than was obtained from oats during 
the same years. The weight per measured bushel of nearly all 
varieties is considerably below the standard weight at both College 
Park and Arlington Farm. The Arlington is the only 6-rowed hulled 
variety which has averaged more than 48 pounds to the bushel. The 
2-rowed varieties averaged almost exactly the standard weight per 
bushel. 
LEADING VARIETIES. 
The leading varieties of barley at College Park and Arlington Farm 
all belong to the 6-rowed bearded hulled group. Two varieties of the 
2-rowed bearded hulled group and one of the naked group, however, 
are of some interest. Brief descriptions of the more important 
varieties are included in the paragraphs which follow. 
THE 6-ROWED HULLED GROUP. 
The greater part of the varieties in the 6-rowed hulled group which 
have been tested at College Park and Arlington Farm are true winter 
forms. About one-fourth of the varieties which have been grown at 
Arlington Farm, however, are really spring forms which have been 
sown in the fall. For the most part these varieties are fairly winter 
hardy, but they still retain the erect early growth and other char- 
acteristics of the spring forms. The most important 6-rowed winter 
barley is the Tennessee Winter. Other varieties of special interest 
are the Wisconsin Winter, the Arlington, and the Virginia. 
Tennessee Winter. — A 6-rowed bearded hulled winter barley has 
been grown for many years in the South Atlantic and Gulf States. 
This variety was improved by mass selection at the Tennessee Agri- 
cultural Experiment Station. It was first distributed from that 
station about 1900, when it was given the name " Tennessee Winter. " 
At College Park the Tennessee Winter, C. I. No. 257, produced an 
average yield of 33.33 bushels during the seven years from 1908 to 
1914. This is slightly less than has been produced by the very 
similar variety, Maryland Winter, C. I. No. 518. At Arlington Farm 
the Tennessee Winter has produced an average yield of 27.97 bushels 
in the six years from 1909 to 1914. Only one other variety, the Wis- 
consin Winter, C. I. No. 519, has been grown on comparable land 
during the entire six years. The yield of Wisconsin Winter was 0.45 
bushel less than that of Tennessee Winter. 
The average date of maturity of the Tennessee Winter at Arlington 
Farm is June 3 and at College Park June 10. The average height of 
the plants was 33 inches. The average yield of straw was slightly 
