North American Fruit Explorers mailing list at ibiblio

[Jwlehman@aol.com]

In a message dated 4/18/2014 3:00:31 P.M. Eastern Daylight Time,  
alandhaigh@gmail.com writes:

A tree  on dwarfing rootstock must, of course, be planted well above the 
graft union  if you want to be assured the tree doesn't root out from the 
scion and defeat  the size reduction of the rootstock.    
 
Alan,
 
Don't you mean the graft union should be well above the ground  line? 
 
Another reason to keep the graft union above the soil line is if  buried 
you lose any protection the understock supplies such as  nematode resistance. 
 
 
 
Jerry