Grafting is a cool idea, you should study up on citrus grafts and such. With certain species the mother plant alone can not produce a decent tasting fruit or nice looking flower. With
grafting one can take a bitter decorator fruit or even better an heirloom variety that has lost flavor and vigor, that when grafted onto a Strong mother root, will take on those characteristics of the new root stock.
This means that the decorator or heirloom variety if grown out to harvest on the original rootstock, the taste or size of the fruit or flower will be of no value to the market.
Now the decorator or heirloom variety grafted onto a new mother rootstock takes on the new rootstocks strength and more. Fruits like oranges and grapes become tastier and more valuable to the markets due to higher sugar content and more, which is how the wine industry and citrus industry work.
What our ancstors did was to take wild grapes or oranges, roses, and such, then graft these onto modern current plants to see what changes would happen to the new parasite plant grafted onto the modern rootstock.
Many different things may happen, usually it is the size, and flavors, and scents that change first, then shapes morph.
This could lead onto something for sure, such as new flavored, larger, danker buds and more, because the mother rootstock determines what happens to the new graft. The grafted buds would definitely take on new characteristics and flavors.
something to ponder for sure.