74 



IOWA DEPARTMENT OF AGRICULTURE. 



at a uniform and desirable height. This is an evidence of good breeding. 

 Uniformity in height of ear is not so important as uniformity of kernels, but 

 it is important in that it indicates good breeding and in ears of the same 

 variety, a uniform time of ripening. 



SHOWING DIFFERENT TYPES OF CORN. 



Fig. 18. In selecting seed corn it is important that all the ears be as nearly as 

 possible of the same type. Ears Nos. 3 and 4 should not be planted with Nos. 

 1 and 2 as they arefifteen days later in maturing than the latter. In order to 

 secure the best pollination it is important that all the stalks should shoot 

 and the ears silk at about the same time. The very early and the very late 

 stalks are usually barren, or partly so, owing to lack of pollen at these times. 

 It is also very difficult to secure an even stand of differnt types, as kernels 

 are almost certain to be of different sizes and shapes, making it impossible 

 for a planter to drop them evenly. 



Fig. 19. 



