[NAFEX] how grafts connect

Ginda Fisher list at ginda.us
Sun Apr 5 22:10:46 EDT 2009


I certainly don't know the answer, but I would have assumed the answer  
is "both".  You'd need to keep the graft from drying out before the  
join heals well enough to transfer fluid no matter which part is  
responsible for forming the initial callus - that's your question,  
right?  Because after the passage of time both parts contribute to the  
joint, as you can see looking closely at any graft.

Ginda


On Apr 5, 2009, at 7:29 PM, Alan Haigh wrote:

> Wow, so none of you knows whether it's the scion or the tree or both  
> that generates the  tissue that connects a graft.  Or did you  
> overlook that question?  The presumption would be that it is the  
> tree and that's why the scion is kept dormant- so it doesn't dry out  
> before the tissue from the tree side forms a vascular hook up.  But  
> then I wonder why so many people have good success with scion wood  
> that was never stored and is cut from a tree beginning active growth  
> and grafted on the same day or a bit later to another tree in active  
> growth.
>
> Have I uncovered a great myth about the requirements for grafting  
> efficacy?




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