Grade. 

 Date. . 



EXERCISE 32 



TYPES OF COTTON 



Object. To study varieties representing different types of cotton. 



Material. Plants representing as many of the following types as possible. 

 Group 1. Cluster type. 

 Group 2. Semicluster type. 

 Group 3. Rio Grande type. Example, Peterkin. 

 Group 4. Early varieties of the King type. 

 Group 5. Big boll type. 

 Group 6. Long limbed type. 

 Group 7. Intermediate varieties. 

 Group 8. Long stapled upland varieties. 



Directions. Describe each plant using the following descriptive terms. 



Terms for Describing Cotton. A. Plant. 1. Shape : Cone shaped, 

 sugar loaf shaped, slender, with long basal limbs. 



2. Size: Small (less than 3 feet), medium (3-5 feet), large (5 feet or more). 



3. Internodes: Short, medium, long. 



B. Bolls. 4. Shape: Slender, medium, rounded. 



5. Size: Small, medium, large. 



6. Arrangement: Clustered, semiclustered, separate. 



C. Fiber. 7. Length: Short (H-l)4 inches), long (lM-1% inches). 



D. Seed. 8. Color. 



9. Pubescence: Hairy, mixed, smooth. 



E. Leaf. 10. Size: Small, medium, large. 



11. Shape of lobe: Short, broad, medium, long pointed. 



F. Maturity. 12. Season: Early, medium, late. 



G. Other Characters. 



Outline for Describing Cotton 



91 



