B ABLET 



167 



a higher percentage of starch and a lower 

 percentage of protein than those of glassy 

 texture. The chemical composition of the 

 hulled kernel is about the same as that of 

 wheat. When the hull is also considered, 

 the percentage composition is changed on 

 account of the crude fiber of the hull. The 

 legal weight per bushel in most states is 

 48 pounds. The weight per bushel may 

 vary a few pounds either way, a high 

 weight per bushel being associated with 

 high percentage of starch. 



153. Types of barley. — Barleys may 

 be divided into two classes, namely, two- 

 rowed and six-rowed. The basis for this 

 classification is to be found in the appear- 

 ance of the spikelets on the rachis. In 

 the six-rowed type, three spikelets, each 

 of which produces one kernel, are pro- 

 duced at each joint of the rachis. In 

 the two-rowed type three spikelets are 

 produced at each joint of the rachis, but 

 only the center one produces a kernel, the 

 two lateral spikelets not fully developing. 

 A head of the latter type has the appear- 

 ance of having only two rows, one on 

 either side of the rachis, while the former 

 type gives the appearance of having six 

 rows, three on each side of the rachis. 

 The two-rowed varieties usually grow a little taller than 

 the six-rowed, and the kernels are somewhat larger and 

 longer than those of the latter type. In the United 

 States the two-rowed varieties are largely grown in the 



Fig, 61. — A 

 head of six-rowed 

 barley. 



