50 STUDIES OF AMERICAN BARLEYS AND MALTS. 



cording to Jvonig," a barley grown in a s^ndy soil, a clay soil, and a 

 soil rich in lime differed in protein content as follows: 11.1, 13.4, 1:2.7. 

 Much larger differences than these are obtained by growing the 

 same varieties in different localities. Eckenbrecher 6 likewise has 

 recently shown that there is a greater difference in composition and 

 physical characteristics of barley of the same type grown in different 

 localities than of different varieties grown in the same locality. The 

 same has been shown by Kiessling c and others. 



TWO-ROW BARLEY >. 



Xo attempt will be made to draw conclusions of this character 

 from the data here presented on 2-row, Utah Winter, or Bay 

 Brewing barleys, because of the fact that comparatively few samples 

 of each variety were analyzed. In general, however (Table II), it 

 is readily seen that the percentage of protein is very slightly lower 

 in the 2-row barleys than in the 6-row barleys (Table I) of the Man- 

 churian type, the average in the former case being about 11.6 per 

 cent. The five samples from Montana average less than 10 per cent. 

 Although the 2-row barleys do not contain much less protein than do 

 the 6-row, there appears to be somewhat less fiber, pentosans, ash, 

 sulphur, hulls, embryo, and steely grains, but more starch, extract, 

 soluble albumen, bran, and endosperm, a higher coefficient of meali- 

 ness and degree of dissolution, and a greater weight per 1,000 grains 

 and per bushel in the 2-row than in the 6-row barleys. The other 

 constituents show no great variation between the two types of 

 barley. A striking difference between 2-row and 6-row barleys 

 is found in the fact that the former contain a larger proportion of 

 bran than of hulls, while in the latter the percentage of hulls is 

 greater than the percentage of bran. The western 6-row barleys are 

 in this respect similar to the ordinary 6-row barleys. 



SIX-ROW WESTERN BARLEYS. 



Twenty-seven samples of 6-row western barleys were analyzed. 

 They are usually called Bay Brewing barley or .Utah Winter, the 

 former being characterized by their thick skin and the latter by 

 their somewhat thinner hulls. Both varieties are large. Compared 

 with the ordinary 6-row barleys, they show a closer resemblance to 

 them in chemical composition than do the 2-row barleys. They are, 

 however, much larger, weigh more per bushel, and contain less 

 protein (somew T hat less than the 2-row barleys). They contain a 

 slightly larger percentage of hulls, but less total sulphur and soluble 

 protein than do other 6-row barleys. The average weight per 1,000 

 grains of 6-row barley is less than 27 grams, compared with 36 grams 



a Untersuchung lamlwirtschaftlich gewerblich wichtiger Stoffe, i>. 517. 

 6 Wochenschr. Brau., 1907, 24: 491. 

 c Loc. cit. 



