Scion priming in junipers: would it work?

Wires_Guy_wires

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One of the key reasons of failure in scion grafting, is a lacking connection between scion and receiver.

For a couple of years now, I've been fiddling with the idea to cut my scions, wrap them, and instead of inserting them in the receiver tree, first put them in the fridge in a callus-inducing medium for a week.
In theory, it should induce a healing response in the scion and thus get a stronger response from the receiving plant. The risk is that it could jumpstart growth, or inhibit growth all together.

Has anyone ever tried it? Or read about it? If so, I would like to hear your findings! Otherwise, I'll set up an experiment of 4 treated and about 6 or 8 untreated ones. But the main issue is that I haven't been able to find a solid composition for callus induction in junipers.
 
This has been a point of discussion recently on the Bonsai-U platform. Bjorn posted a video last week where he documented his experimental process of using hormones while grafting a juniper.
You’d need to be a member on his platform to watch the content and see the paper.

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