194 



BREEDING CROP PLANTS 



B. RESULT OF SELECTING MAIZE FOR HIGH AND FOR Low OIL CONTENT 



RESPECTIVELY 

 Average Percentage Oil in Crop Each Generation 



duction has nearly been obtained. These new strains have been 

 named Illinois High Protein, Illinois Low Protein, Illinois High 

 Oil, and Illinois Low Oil respectively. The high and Low Protein 

 strains were crossed with a normal Learning variety by Hayes 

 (1913a). The FI generation of the cross between Low Protein 

 and Learning produced approximately the same protein content 

 as Illinois Low Protein, while the cross between Learning and 

 Illinois High Protein gave about the same protein content in FI 

 as the normal Learning variety. Results are given in Table XLII. 



