10. (a) Which is the most pleasant to harvest and thresh, bearded wheat or bearded 

 barley? Explain, (b) Would the nature of barley beards tend to make barley popular or 

 unpopular among farmers? (c) Which would you consider more safe to feed to stock — 

 straw of bearded barley or straw of bearded wheat? 



11. (a) As shown by its position, the barley "hood" is a modification of what? (b) If 

 hooded barleys were as heavy yielders as bearded barleys (which except at great altitudes is 

 not true) and price per bushel were the same, which would be the most popular among 

 growers? Why? 



B C DEF 



B C D EF 



V\»>7 



F EDC B 



Fig. 57. 

 (a) Group of barley spikelets supported by a rachis joint of six-row barley. 

 (b, c, d, e and f) fertile spikelet — 'three), supported by a single rachis joint; 

 (b) outer glume: (c) flowering glume: (d) kernel: (e) palea : (f) outer glume. 

 (Anderson.) 



12. (a) After threshing, the kernels of the common form of both oats and barley re- 

 main firmly held between the flowering glume and palea. Explain how the barley kernel 

 is held enclosed, (b) Likewise explain how the oat kernel is held., (c) How do naked barleys 

 differ from common barleys? 



13. Compare the kernel of naked barley with the wheat kernel in the following particu- 

 lars: (a) Length, (b) Width, (c) Thickness, (d) Shape of ends, (e) Brush, (f) Depth 

 and width of suture. 



14. How would you distinguish a threshed sample of common six-row barley from one 

 of common two-row barley? 



94 



