134 



SOUTHERN FIELD CROPS 



Around the edges of this breeding-plot, plant the best 

 ears not used in the breeding-plot, these " general-crop 

 rows " serving partially to exclude pollen of inferior plants 

 and of other varieties. If practicable, let this breeding-plot 



I 



I 



Z'j.il.li>-''i^-U-"- 1& ii^jz/o. f.6.f. 2. 1, 3 S. 7. 9. ;f.f3JS.'7. '9 2'. 23.31:37. 2f, 



Fig. 72. — Diagram showing Arrangement of Rows in Corn 

 Breeding-Plot. 



Dotted lines represent detasseled parts of each row, from which seed 

 corn is selected ; continuous lines represent parts of each row not detas- 

 seled ; the best ears (1, 2, 3, etc.) are planted near the center of the plot. 



be at least a quarter or half of a mile from any other field 

 of corn, antl preferably separated from anj- other corn by 

 woodlaml. 



