88 



ILLINOIS ACADEMY OF SCIENCE 



at one side of the High Ear plot so that the Low Ear silks 

 were pollinated with High Ear pollen. Measurements were 

 taken the fore part of October after all growth had ceased. 

 By height of ear is understood to mean the length of stalk 

 from the surface of the ground to the node from which the 

 ear grows. In event of more than one ear the upper one is 

 always measured as it is usually the principal ear. The num- 

 ber of internodes are counted from the surface of the ground 

 to the ear-bearing node. 



HEIGHT OF EAR 



"Paper read before the Illinois Academy of Science, February 19, 1916. 



Probably the most obvious difference between the three 

 strains is in the height of the ear. The mean height of the Low 

 Ears is 17.64 inches, of the High Ears 68.06 inches, or prac- 

 tically four times as high; that of the cross was 39.12 inches 

 or nearly a mean proportional between the two parents. The 



Figure 2 



