94 



Table 31b. Showing Relative Resistance to Low Tempera- 

 tures of Apple Roots Kept in Dormant Condition 

 as Compared with Those in a Grow- 

 ing Condition. 



Where Stored 



Largest 

 Diameter 



Results. 



Outside 



Outside 



Outside 



Outside 



a) Cold Storage 



Cold storage. . . 



Cold Storage.. 

 Cold storage.. . 



b) Greenhouse. . 

 Greenhouse. . 



.3 in.. 



.3 in.. 

 .3 in.. 



.3 in.. 

 .3 in. . 



.25 in. 



.35 in. 

 .3 in.. 



.3 in.. 



.25 in 



No injury in first 6 in. from top. 

 Cambium and cortex slightly 

 injured in remainder. 



Cambium injured slightly in last 

 7 inches. 



Cambium injured slightly in last 

 7 in; cortex also injured in last 

 5 in; sap wood injured only at 

 terminal. 



Cambium injured slightly in last 

 7 in; cortex injured in last 5 in; 

 sap wood injured at terminal. 



No injury in first 5 in; slight in- 

 jury in cortex and cambium in 

 remainder., 



No injury in first 6 inches. Cam- 

 bium injured in remainder. 



Cambium injury throughout. 



Slight inj ury in cambium through- 

 out. 



Slight injury in cambium 

 throughout. 



Very slight injury in cambium 

 in first 5 inches. Cambium and 

 cortex injury throughout the re- 

 mainder. 



a) In cold storage since January 12, 1913. 



b) In greenhouse since January 12, 1913. 



Table 31c. Showing Relative Resistance to Low Tempera* 

 tures of Apple Roots Kept in Dormant Condition 

 as Compared with Those in a Grow- 

 ing Condition. 



