56 



MANUAL OF GENERAL AGRICULTURE. 



Grain 



} This is the distinguishing characteristic 



Inclosed in flower- I between the naked or hulless barley 



ing glume. [ and the ordinary kind. In the latter 



Free (naked). the grain is so tightly inclosed that 



J it is not freed in threshing. 



FIG. 2. Types of barley spikelets: A, spikelet from two-rowed 

 barley; B, spikelet from six-rowed barley; C, a six-rowed hulless 

 barley; D, a white hulless and awn less barley; E shows a barley 

 spikelet torn apart. 



{Hard. } This point is most easily determined by biting or 

 Medium. ) cutting the grains and comparing with stand- 

 Soft. J ard samples. 



Shape 



} Different varieties of barley show considerable 

 Long. variation in size and ratio of length to diam- 



Medium. } eter. Pick out about six typical grains to 

 I Short. J examine for these points. 



Thin. 



\ Medium. 

 [ Plump. 



