Appendix E 451 



2. Remove 6 kernels from each ear for germination test, 

 along a spiral line from 1 inch of butt to near the top, revolving 

 the ear twice. 



3. Draw a typical kernel. 

 (a) Face aspect. 



(6) Side aspect. 



4. Make and draw longisections through the middle line 

 both ways of the kernel, showing the following structures: 



(a) Mass of starch or endosperm. 



(6) Crescent-shaped body, the germ or scutellum near the 

 smaller end of the grain. 



(c) Remaining portion of embryo lying in the depression 



between scutellum and seed-coat. 



(d) In sample kernels where does color lie, in the pericarp, 



aleurone layer, or endosperm ? 



(e) Note relative amount and position of starchy and 

 horny endosperm in 



1. flint kernel, 



2. dent kernel, 



3. pop-corn kernel, 



4. sweet-corn kernel. 



5. How would an FI kernel of corn appear in a cross between 



white sugar X yellow flint ? 



.yellow flint X white sugar ? 



white flint X purple flint ? 



purple flint X white flint ? 



red sweet X purple flint ? 



purple sweet X red flint ? 



Dominant Characters. 



Colored over white. 

 Yellow over non-yellow. 



