EXERCISES 



155 



Data are classified into types largely on the basis of shape of the 

 panicle. In this way we have three main types of oats: 



1. Panicled (branches of panicle diverging broadly from central axis). 



2. Compressed (branches closely adjacent to the central spike). 



3. Side (branches all inclined toward one side of the central axis). 



Drawing Work 



1. Draw twice natural size details of a spikelet. (a) Show each grain, 

 awns, and outer glumes. ( b ) Show the lower flower spread apart, label- 

 ing outer glume, hull, dorsel awn, kernel, and palea. 



2. Draw spikelet of hulless oats twice natural size. 



3. Draw spikelet of wild oats twice natural size. 



4. Draw head of panicled oats natural size. 



5. Draw head of side oats natural size. 



Write a clear statement explaining wherein oats differ from wheat 

 in (1) the head; (2) spikelet; (3) grain. 



Descriptive Terms for Oats 



A. Panicle: 



1. Shape spreading, side. 



2. Structure compact, medium, open. 



3. Awns straight, twisted, kneed. 



B. Spikelet: 



4. Color whitish, yellowish, reddish. 



5. Width wide, narrow. 



6. Number of grains 1, 2, etc. 



C. Grain: 



7. Color white, yellow, red, black. 



8. Shape slender, medium, plump. 



9. Crease full, narrow. 



10. Tip refers to extension of hull. 



11. Per cent hull. 



12. Per cent kernel. 



On the following outline describe several types of oats. 



Outline for Describing Oats 



11 



