Good Morning: I have a few questions about grafting. I understand that in a graft there can be genetic material that passes across the graft. 1. What are the practical implications of this? Does this mean that the scion can start to show characteristics of the rootstock? 2. Have two different genera within the same family ever been successfully grafted (trees)? 3. Since the graft union is supposed to be inherently weak, isn't that a structural problem since it's usually at the base of a tree? 4. What does it mean when discussing JM's that grafts have to be within the same "series"? What's a "series"? Thanks very much,
