INHERITANCE-IMPRO I 'F.MR NT J! ) ' BREEDING 1 5 9 



The following table (Hopkins, 2) shows the variation in chap. 

 results obtained on a breeding plot at the Illinois Experi- v - 

 ment Station from seed-maize with a 7-year pedigree. 



Table XXXII. 



VARIATION IN COMPOSITION AND YIELD OF DIFFERENT EARS- 

 SELECTED FOR BREEDING. 



The protein-content varied in the parent ears from 12-06 to 

 1578 per cent and the weight of ear-maize in the crop from 

 54-5 lbs. to 140-5 lbs. 



Such improvements are also needed in South Africa, and 

 would help her to meet the requirements of particular markets, 

 especially when she develops her own factories for the local 

 manufacture of articles now imported by her. The question of 

 protein-content is of especial importance to compound man- 

 agers as well as to stock feeders ; it is believed that a higher 

 proportion of protein would materially affect the efficiency of 

 the native workers on the mines. 



1 18. Necessity for Development of New Breeds. — After test- 

 ing in South Africa scores of the best breeds of maize grown 

 in the United States, Canada, Mexico, Bolivia, Chile, Peru, 



