Ok, I'm gona ask you advanced people to dumb yourselves down just a little to help this newbie who is still trying to learn.... I've spent a lot of time watching you-tube videos (admittedly not the most dependable information source) on how to propagate a new tree from an old one using different methods. There are videos of people starting new trees from old ones of almost all types of fruit. They all talk about how much money one can save in doing this instead of buying a new tree, and most end with the person planting their new tree with roots into the ground. I think I can do this, but here is my question: WHAT ABOUT ROOT STOCK? What I mean is, I thought a big reason for buying a new tree at a nursery was so you could get a good quality fruit that was grafted onto a rootstock that is stronger/healthier/more suited to a given climate/size control, etc. WEll, if I just propagate a new tree by, lets say, air propagating it from a limb of one of my existing trees, it will not have good rootstock, right? Or at least it might not. ORRRR will the whole (new) tree be the rootstock of the old tree? I mean, is a propagated tree an identical copy of the old tree....meaning it will have the old tree's root system AND the old tree's top work/fruiting section? I doubt that....seems like it would just be the top/fruiting part of the old tree since that is what the cutting is grown off of, but if so, it seems like the roots you get would be a crap shoot. If the old tree's top could have produced a good root system, why would it have been grafted onto root stock in the first place. Last but not least, is propagating a new tree from an old one the biological equivalent of planting a seed from the old tree, something everyone says rarely works out. Are propagated trees equally unlikely to mature into high quality adult trees? Sorry this is so long, and I've tried to limit my dumb/elementary questions here since I know most of you are far more advanced and probably grow weary beginner level postings. But you've all been kind and helpful so far, and I hope you'll continue to put up with my occasional uninformed postings! Thanks.