Some people think Citrumelo is a fairly new roost sock. It was actually made way back in 1907, but was not given the name Swingle until 1974. Your tree should do well grafted to Swingle. Trees grafted on Swingle have good to excellent yields , and many times superior those of trees on Carrizo.

I have no knowledge about this

Is it a dwarfing rootstock somewhat like FD? Is it considered the better rootstock for mandarins/ oranges/ pomelo’s/ even lemons?

No it is not a dwarfing root stock.

In most cases FD & PT produce superior fruit quality to swingle as well as added cold tolerance.

Steve

This Citrumelo was going to be thrown out, so I thought, why not graft to it? By the way, this is 'Dunstan', not 'Swingle.' Judging by the vigor of the root stock as well as the vigor of the scions, it doesn't look dwarfing to me. I'm not really as concerned about 'dwarfing', as fruit production, ultimately.

I already have a Shiranui on C-35, so we’ll see how fruit compare.

What poncirusguy wrote above has a lot of truth. As a GENERAL rule, faster growing root stocks, and lemon hybrids, generally product lower quality fruit. Slower growing root stocks generally produce higher quality fruit. As Poncirusguy wrote above, FD and TP hybrids generally produce quality fruit.. In a recently finished research project by the California Research Board to find the best root stock for the Tango Mandarin, the top three best were C35, Bitters and Carpenter. all three Trifoliate hybrids. Most, but not all, of my trees are growing on Flying Dragon. And I can attest that FD produces excellent fruit quality.

Dave there is no information at all concerning using Dunstan as a root stock. Your the explorer.

Silica that’s good to know. My tree’s are grafted on seeds bought from Laaz, one of the most knowledgeable person I know off. Had F/D in there, plus others that weren’t rootstock types , just mandarin seeds.Don’t know what I have underneath my tree’s. Quality is fine for all I know.

Hi, Silica, Dave, Steve, Bob, Howard and anyone else, please tell me what I can do with rooted (about 3 years) trifoliate, that I cut off my Meyer lemon trees with the notion that they can be used for grafting???? Or should I just discard them? Once rooted, are they considered scions? I just don't seem to understand it. They are not big. Please tell me what to do, and thank you for your time.

Soozi, you were a regular on this citrus forum, right? Recognize that name, who can forget that name. There are so much available now, all you need the right rootstock as mention here on the forum just now and you are good to go. I grow mainly mandarins and Pomelo’s, 2 Meyers and 2 Santa Teresa,s. Whatever rootstock I have, standard or otherwise,I keep them at 6 feet, or trying at least. The other guys have better ideas l am sure.

Yes, Bob, I was a semi regular...loved reading and learning. What is the right root stock? I love kumquats and would really like to get more via grafting. I am really muddled about it all. Are the rooted trifoliate good for anything? Should I just get rid of them? Thanks for remembering.

I have no knowledge in this area

All kumquats should be grafted to PT/FD or on their own roots.One green world uses Flying dragon for its rootstocks.

Steve

I have no knowledge in this area

I think fast-growing rootstocks can have trees with good quality fruit, but you will just have to wait much longer until it is a big tree.

Rootstocks that are more dwarfing restrict the tree's growth, and as a result, more of the energy is diverted to fruit production earlier on in the tree's life.

maybe you can use the trifoliate as a thief protection because of its thorns

Bob, just found out through reading some old posts that you are persimmonbob! Hi.

Yes Soozi, started out as persimmonbob, the old Gardenweb. Moved to citrus/figs, which a few members did not go well, because what does a persimmon guy knows anything about citrus. Had to change to just Bob. Soozi, I do have different names on different forums because I grow a huge variety of fruits, not just citrus. Also have a lot of forum friends everywhere, sort of a network. Like to add you to my network.

If you want to enlarge your collection, that’s the way I would suggest. It’s the quickest way !

2017 till 2020 had received so much sionwood especially citrus. my collection is complete.

Grafting is second nature to me, since the seventies. Cruising now, no need for anything.

Thank you.