44 



BULLETIN" 336, U. S. DEPAKTMENT OF AGKICTJLTURE. 



The rate of seeding at College Park has been 8 pecks for all years 

 except 1909 and 1911, when the rates were lOJ and 11 pecks, respec- 

 tively. At Arlington Farm the hulled varieties have been sown uni- 

 formly at the rate of 8 pecks, which appears to be about the best rate. 

 The naked barleys have been sown at the rate of 6 pecks in all years 

 except 1911, when 8 pecks were sown. 



The annual and average yields per acre of the varieties tested at 

 College Park during the seven years from 1908 to 1914, inclusive, and 



Fig. 6. — Heads of three varieties of winter barley grown at Arlington Farm: 1, Tennessee Winter; 

 2, Wisconsin Winter; 3, Omar. 



at Arlington Farm during the six years from 1909 to 1914, inclusive, 

 are shown in Table XII. 



All the .varieties included in the tests at College Park, as shown 

 in Table XII, belong to the 6-rowed hulled group, all except the 

 Arlington being quite similar to the Tennessee Winter (fig. 6) and 

 Maryland Winter varieties (C. I. Nos. 257 and 518, respectively). 

 Of the 56 varieties and strains included in the tests at Arlington 

 Farm (Table XII), 31 belong to the 6-rowed hulled group, 19 to the 

 2-rowed hulled, and 6 to the naked or hull-less group. Most of these 

 varieties are bearded. 



The varieties of the 6-rowed hulled group usually have produced 

 the best yields. All the 2-rowed barleys with the exception of the 



