How to Produce Millions of Apple Trees - Production of Apple Seeds - Harvesting and Processing Apples
All apple trees are grafted because apples don't grow from seed: if you want to be sure of a cultivar, you have to prune it. Grafting is a process in which you take cuttings from the apple variety you like and graft them onto the desired rootstock of particular strength (or lack, in the case of dwarf varieties) and resistance.
Kredit: Andrzej i Szymon Nowakowscy https://www.szkolki.pl/