Conclusion : What parts of the oat head should we strive 



to improve? 



Why?... 



In what way does the size or maturity of the grain influ- 

 ence the number of bushels produced per acre? 



The points of difference. 



EXERCISE No. 16 

 DRAWINGS OF WHEAT OR BARLEY HEAD 



Object: To become familiar with the different parts of 

 the wheat or barley head. 



Material : Heads of wheat or barley. 



Method: Make a detailed study of the head in the 

 laboratory. 



(a) Draw a wheat or barley spikelet showing (1) beard, 

 (2) grains, (3) rachis. 



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