[nafex] interstem puzzle

Nicollas permactiviste at gmail.com
Fri Nov 22 02:37:45 EST 2013

To ensure there is no cambium left you can try to strip bark the original
tree (like in http://www.bio-eglantine.com/tutos/operation_greffe/pont2.gif)

2013/11/22 Steve <sdw12986 at aol.com>

> That sounds like an excellent idea to me. I've never heard of that
> before though. Probably better than summer pruning because summer
> pruning is one of those never ending jobs that you have to keep up with
> every year. (And not as much fun.)
> Some thoughts:
> 1. You would want to choose your donor bark from something that you know
> works as an interstem. I think any dwarfing rootstock would be dwarfing
> as an interstem. I wouldn't know how dwarfing any of them would be
> compared to when used for the roots. Maybe it doesn't matter.
> 2. This bark interstem might not be very dwarfing the first year or two
> or more. Nutrients from the roots flow upward in the wood. You would
> still have the original wood. As that original wood ages and changes
> from sap wood to heart wood, then it might be more dwarfing.
> 3. When you do this graft, what if cambium remains on the wood? Would
> the original cambium keep making non dwarfing wood? Would that be OK
> because the dwarfing bark would slow nutrient transportation to the
> roots and still result in dwarfing? Could remaining cambium on the wood
> out grow the new cambium from the graft and actually convert the bark
> back to normal? Maybe you should scrape the wood to remove all old
> cambium. Maybe you should even let it dry out for a day before you
> collect and insert the donor bark.
> Anyway, that's what I would be thinking about. Sounds like a fun
> experiment. I wish I had a tree or two to experiment on like that.
> Steve in the Adirondacks
> On 11/18/2013 11:07 AM, rob hamilton wrote:
> > Just came up with an Idea that I want to run past some people.
> >
> > Let say you have for an example a fruit tree on its own roots that
> propagated from a cutting. You know that the fruit will be of good quality,
> but you know it will be big eventually. It is established in the ground
> already.
> > Could one do a band graft of a dwarfing rootstock bark (when the bark is
> slipping) as an interstem without cutting the hardwood? Has any heard of
> this practice?
> > One could do half of one side of trunk on year and then the other, to
> insure it takes.
> >
> > Any thoughts?
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