Basically, you need the cambium layers to touch and grow a callous.
graft will die.
Let's graft this lime tree twig onto this orange tree trunk, and see what happens.
you graft it.
you don't.
It is possible to graft an apple to fig tree. However, the hybrid will likely not be viable or fruit-producing.
The cast of How to Graft the Tree of Knowledge - 2012 includes: Michael Goodier Merav Tzur
how do you grow a male ginkgo tree from grafting
To successfully graft an orange tree, follow these steps: Select a healthy rootstock and scion (the part you want to graft onto the rootstock). Make a clean, diagonal cut on both the rootstock and scion. Match the cuts together and secure with grafting tape. Keep the graft site moist and protected until the graft takes. Monitor the graft for signs of success, such as new growth.
No. One is a Prunus and the other is a Malus.
It is possible but it would be a waste of your time.
Yes, graft a pear branch to an apple tree or an apple branch to a pear tree.
yes, that's the point of grafting... however you can not graft any two trees, there are incompatabilities which can be as a result of growth rate (if the rootstock is faster growing it will cover the scion and choke it over time.) hormonal differences and others. you can graft pretty much all citrus fruit on each other or have a tree on which each limb bears different fruit. you can graft a cherry tree on a peach or apricot but not on an apple or a pine.