IO2 



FARM AND SCHOOL PROBLEMS. 



8. Kernels should be deep and uniform in size. 



9. Rows of kernels on the ear should be as nearly straight as 

 possible. 



10. The proportion between the weight of grains and cobs should 

 be determined. 



11. The weight of the grains should be from 85 to 90 per cent, of 

 the weight of the ear. 



12. The ear should be sound and free from any fungus growth, or 

 disease. 



FIG. 1. A Good Selection. 



Importance of Selection. 



The following problems are given to demonstrate the impor- 

 tance of selection as a factor in the yield of corn. 



1. If a bushel of seed corn will plant 7 acres, and a good selection of 

 seed will increase the yield 10 bushels per acre, how much more is 

 one bushel of this seed worth than a bushel that will not increase 

 the yield, when corn is selling for the present market price? 



2. In Logan County, Ohio, 30 farmers entered a corn growing contest; 

 all planted at the same time in one field; the condition of the soil 

 was uniform in all parts; all parts received the same care and cul- 

 tivation; each farmer selected his own choice of seed and variety. 

 The lowest yield was 53 bushels and the highest yield was 80 bushels 



