162 



SOILS AND PLANT LIFE 



The desirable tip insures greater uniformity in size and 

 shape of kernels and also a higher shelling percentage. 



DEPRESSIONS IN THE ROWS 



(5) An ear whose rows show no depressions throughout 

 their length. This ear should be of the desirable size and 

 shape given in (i) and (:?), and it should have as nearly 

 as possible the desirable butt and tip described in (3) and 



U). 



(5) An ear whose rows show numerous depressions. 

 Depressions in rows are another cause of non-uniformity 

 in size and shape of kernels, which we are seeking to 

 avoid. 



Conclusion. — State carefully in your notebook the 

 points that are regarded as desirable in an ear of seed com 

 and give reasons. Name the undesirable characteristics. 



EXERCISE 44 



Object. — To learn to recognize the 

 desirable and undesirable characteris- 

 •* tics of the kernels of a seed ear. 



Procedure. — Select ten ears of corn 

 lA\ I whose kernels show the desirable and 



w\"T *' undesirable characteristics named be- 



tj."TJ.".'."!".d low. Again the desirable characters 

 '' are in italics. 



"* Since the kernels must be examined 



Fig. 66. — The parts carefully, it is neccssary to remove two 



of a corn kernel. ^^ ^^^^^ ^^^^ ^^^^ ^^^ ^^^^^ midway 



fc/the'VlumT™; between the butt and tip. After this, 



the germ ; d, the hy- keep each ear, together with the kernels 



the'ladiot- r tht Which came from it, separate from the 



tip cap. other samples. 



