14 LABORATORY MANUAL IN FIELD CROPS 



PRACTICUM NO. 11 

 Object. A Study of the Wheat Plant. 



Materials. Wheat plants in the field or dried plants in the 

 laboratory. 



Method. Make the determinations and measurements from 

 the material, and record in tabular form in your notebooks. 



1. Length of spike, average of five spikes. 



2. Shape, side view : square, flattened with the spike. 



3. Shape, end view : square, flattened with the spike. 



4. Number of sterile spikelets and where found ? 



5. Awns : length. 



6. Awns : slender, medium, stout. 



7. Awns : parallel, spreading. 



8. Awns : deciduous, persistent. 



9. Awns : light yellow, dark. 



10. Spikelet : compact, spreading, widely spreading. 



11. Spikelet : number of grains in average of five. 



12. Basal hairs : long, short, medium, wanting, color. 



13. Outer glume : color. 



14. Outer glume : smooth, hairy, spinose. 



15. Outer glume : wide, narrow. 



16. Length of outer glume : medium, long. 



17. Attachment of outer glume : firm, weak. 



18. Beak : long, medium, short. 



19. Shoulder : broad, medium, narrow. 



REFERENCE 

 Hunt's Cereals in America. 



