In nature, two closely related plants growing nearby can graft together.
How to Successfully Bud Graft Citrus Trees
Grafting apple trees
Bud Grafting of Fruit Trees – Philadelphia Orchard Project
Where to Get Rootstock For Grafting - Salt in my Coffee
6 Steps To Grafting Fruit Trees
Bud Grafting of Fruit Trees – Philadelphia Orchard Project
Plant grafting: how genetic exchange promotes vascular reconnection - Wang - 2017 - New Phytologist - Wiley Online Library
NEWLY GRAFTED TREE AFTERCARE — Home Orchard Education Center
Mango Tree Propagation: Learn About The Grafting Of Mango Trees
Garden Grafting Tool, Multifunctional Pruning Kit, U-Graft/V- Graft/Ω-Graft Seedling for Fruit Tree Branch Grafting Set, Including Graft Tapes, Replacement Blades, Fixing Clip, Yellow : Patio, Lawn & Garden
Grafting Fruit Trees