DESCRIPTION OF THE CORN PLANT 27 



Fig. 12. — Corn roots. 1. Ordinary distribution of roots when corn is 

 planted in rows three feet six inches apart in a deep loam soil. Figures 

 in margin indicate feet. In a hardpan soil roots do not penetrate so 

 deep. 2. Single lateral root. 3. Small branch root showing root- 

 hairs. 4. Root and root-hairs enlarged. 5. Cross-section of 4 at 

 point a. 7. Root-hair in contact with soil grains. 



