INHERITANCE— IMPROVEMENT BY BREEDING 227 



First Years Selection. — -Let us suppose that only twenty CHAP, 

 good ears, coming up to our ideal, have been selected this V ' 



Fig. 89. — Selecting the best ears from the bulk plot. 



season ; what are we to do to prevent this progeny being 

 crossed by plants in the same field grown from unselected 

 seed ? The best plan is to plant the seed in a square of, say, 



'5* 



