When we moved into our house in September, there were three unknown potted mango trees that were left and one unknown mango tree in the ground. Since we had the space and I did not want these potted mangos to die, I went ahead and put the three unknown mangos in the ground near the previously planted unknown mango. All of them have been doing pretty well and kicking out a lot of new growth. One in particular is doing VERY well with a very nice bushy structure and many terminal ends; however, I am debating top working these into varieties that I know and want. Here are my thoughts.
First, I do not think two of these trees are grafted. As you can see from the pictures, two of the trees have growth tied off. I thought this could be growth from the root stock popping out, or maybe they are shoots from a poly embryonic seed they tried to stop. So do you think those tie offs are from grafting or from poly embryonic shoots? I know they were trying to do some work with trees and possibly selling as a nursery, so could they be root stock they were growing? Even if it is a graft, I do not know if it is the root stock or graft that “won” and which is growing
Second, the other two trees have a nice V structure, but I cannot tell if these are grafts either. These second two are the ones that are doing the best, but idk if they are grafted or from seed. Do you think these V shaped trees are double grafts or just grown from seed?
My main concern with just letting these 4 trees go is I will be waiting 7-10 year to get fruit if they are not grafted. It maybe cool to just let them go and see what I get, as I have several other trees; however, it would be a long time to let them grow, possibly fruit, then have to wait for new grafts to produce if the original fruit is bad. The whole thing ultimately is not a huge issue as I have several other trees, but I am trying to plan things out. The main corse of action I am leaning towards is grafting/top working the two trees that have the shoots tied off and let the other two V shaped bushy trees go. Thoughts?