48 LABORATORY MANUAL IN FIELD CROPS 



PRACTICUM NO. 37 



Object. A Study of the Characteristics of Some of the Com- 

 mon Grass Seeds. 



Materials. Eight four-ounce samples of the grass seeds, 

 hand lens. 



Method. Examine the grass seeds and tabulate the in- 

 formation asked for below. 



1. Flowering glume : 



Length, average of five. 



Blunt, pointed. 



Straight, curved. 



Awned, awnless. 



Color : red, brown, silver. 



Hyaline, chartaceous. 



Keel : prominent, medium, absent. 



Keel : smooth, hairy. 



Adherence : strong, medium, weak. 



2. Rachilla: 



Long, short, variable. 



Slender, broad. 



Smooth, hairy. 



Standing away, compressed to the palea. 



Absent. 



3. Give the most important character for identification of 

 each variety studied. 



REFERENCES 



Hunt's Forage and Fiber Crops. 



Bailey's Cyclopedia of Agriculture, Vol. 2. 



Lyon and Montgomery's Examining and Grading Grains, pp. 87-93. 



