EXERCISE XXX. 

 BARLEY— DESCRIPTIVE TERMS. 



Supplies for a Laboratory Section of Twelve. Each student should be supplied with a ruler and as tnany 

 types of barley heads as are available. 



DIRECTIONS. Read carefully the descriptive terms applied to barley and at the same 

 time make a casual study of the barley heads with which you are supplied. After studying the 

 terms and material which you have before you. turn to the descriptive form, page 98, and fill 

 in a careful description of each barley type. 



OUTLINE OF BARLEY DESCRIPTIVE TERMS. 



I. Spike. 



1. Color. 



(a) Whitish. 



(b) Yellowish. 



(c) Blackish. 



2. Rows. 



(a) Six-row. 



(b) Two-row. 



3. Slenderness. 



(a) Slender. 



(b) Medium. 



(c) Stocky. 



4. Cross section as seen from the end. 



(a) Oval. 



(b) Rectangular. 



(c) Round. 



5. Spacing of spikelets on the rachis. 



(a) Close. 



(b) Medium. 



(c) Open. 



6. Beards. 



(a) Presence. 



Bearded. 

 Partly bearded. 

 Beardless. 

 Hooded. 



(b) Length (if present). 



Short — less than 3 inches. 

 Medium — 3-5 inches. 

 Long — more than 5 inches. 

 7. Length of spike stated in inches. 



II. Spikelet. 



1. Number of flowers per rachis joint. 



(a) Fertile. 



(b) Sterile. 



III. Kernel. 



1. Adherence of glumes. 



(a) Covered. 



(b) Hull-less. 



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