238 Missouri Agr. Exp. Sta, Research Bulletin No. 8 



Kind of Root 



Two-year Ben 

 Davis apple 

 roots 



Two-year Ben 

 Davis apple 

 roots 



Two-year Ben 

 Davis apple 

 roots 



Two-year Ben 

 Davis apple 

 roots 



Location 



of 



Root 



Two-year Ben 

 Davis apple 

 roots 



Two-year Ben 

 Davis apple 

 roots 



Two-year Ben 

 Davis apple 

 roots 



Two-year Ben 

 Davis Apple 

 roots 



Top even with 

 surface 



6 inches below 

 surface 



6 inches below 

 surface 



Largest 

 Diameter 



Length 



.8 in. 



,25 in. 



Tem- 

 pera- 

 ture 



12 in.. 



10 in. 



6 inches below 

 surface 



6 inches below 

 surface 



Top even with 

 surface 



25 in. 



,2 in..., 



,2 in. 



,8 in. 



5 inches below 

 surface 



9 inches below 

 surface 



8 in. 



-10 



-10 



-10 



6 in. 



12 in. 



14 in. 



-10 



-10 



,25 in. 



,35 in. 



8 in. 



8 in. 



-10 



-10 



-10 



Results 



No injury in 

 first 2 in. from 

 top. Cambium 

 injury in re- 

 mainder. Cor- 

 tex injury in 

 last 3 inches. 



Slight injury in 

 cambium 

 throughout. 

 Cortex injury 

 in last 2 inches. 



Cortex and 

 cambium in- 

 jury through- 

 out. Pith in- 

 jury in last 5 

 inches. 



All tissues in- 

 jured through- 

 out. 



Cortex and cam- 

 bium injury 

 throughout. 

 Sap wood in- 

 jury in last 6 

 inches. 



Cambium in- 

 jury through- 

 out. Cortex 

 injury in last 6 

 in; sap wood 

 in last 5 inches. 



Very slight in- 

 jury in cortex 

 and cambium 

 in last 2 inches. 



Cortex and cam 

 bium injury 

 throughout 

 Sap wood in- 

 jury in last 5 

 inches. 



