Corn Growers' Association. 



139 



EFFECT OF SELECTION UPON PHYSICAL CHARACTERS OF THE PLANT. 



Other interesting examples of what may be accomplished by 

 continued selection for particular purposes are furnished by a 

 number of experiments designed to iniiuence certain physical char- 

 acters of the plant. 



BmbryoL 

 Stem J 



£]tnbry6] 

 Root 



_/Crown 

 [Starch 



jHorny 

 [Starch 



fHorny .. 



" [Gluten 



-Hull 



— — Germ 



_/ Tip 

 [Starch 



fTip 

 Cap 



Figure 8. — Diagram illustrating structure of lovv-proteiu kernel. 



BREEDING FOR HIGH AND LOW EARS. 



Six years ago from an ordinary field of Leaming corn two sets 

 of ears were selected, one of which represented ears growing high 

 on the stalk, and the other those borne low down on the stalk. 

 These two sets of ears were planted in separate breeding plots 



