EXERCISE 40 

 A STUDY OF GRASS SEED 



Object. To study the purity and worth of grass seed. 



Explanation. The perennial grasses include such grasses 

 as timothy, Kentucky bluegrass, orchard grass, brome grass, 

 and redtop. The seeds of different kinds of perennial 

 grasses are not as generally known as are the seeds of cereal 

 grains. They are not produced in such large quantities, 

 commercial samples often contain seeds of other grasses, 

 weed seeds, and foreign matter, and their vitality is often 

 low because of unfavorable conditions during harvesting 

 and storing. To insure good results hi seeding grasses it 

 is essential that the seed be free from other seed and foreign 

 matter, and that its vitality be reasonably strong. 



Equipment. 1. A one-pound sample of timothy seed 

 or other grass such as has been named under explanation. 



2. A balance weighing to one tenth of one gram. 



3. A pair of forceps. 



4. A hand lens. 



5. Type sample of grasses. 



Directions. Weigh out two grams of grass seed from the 

 samples and make a detailed study of it. Use the outline 

 form " A Study of Grass Seed " to record the results of the 



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