I am getting some budwood from UCR and I want to graft them onto some dwarfing rootstocks that will be the best for...

A: Flavor and B: Dwarfing characteristics

So, that being said...

Red Valencia
Sudachi
Marrakech Limonette
Centenial Variegated Kumquat

These are going to be in ground...

Any suggestions?

Marc

That is the question I am pondering too.
I asked Dr. Gary Partida and he said
Never buy dwarfing anything.
Dwarfing rootstock shortens the life of the tree.
Troyer might be a better rootstock than Carrizo or C-35.

I didn't put quotes around those sentences because I
jotted notes as he was talking and I know I missed a lot
and I probably got some of this wrong. Anyway, I want
a lot of small citrus in my backyard, so I might use
"Flying Dragon" anyway and expect the trees to die in
15 years or so. Trees on dwarfing rootstocks have some
graft incompatibility and suffer from graft overgrowth.

It could be true, but I have never heard that trifoliate or flying dragon would shorten the life of the tree. I have read that some mandarins are incompatible with trifoliate.

Here is some info that might be of interest: http://edis.ifas.ufl.edu/HS221

I believe Troyer and Carrizo are the same.

There are some declines but not generalized to all. For example, Fukumoto navels have declines on C-35 and Carrizo citrange, but these are typical of genetic incompatibilities between scion and rootstock and so definitely not true for all citruses.

Some stunting could be blamed on susceptibility of trifoliate and citrange rootstocks to some viroids which the scions are tolerant, and so with the weakened rootstock, the overall tree is weakened.

The citrus trifoliate was first used in the US in 1869, definitely we have had more than 100 years of experience to tell us if it is bad for all citruses as a rootstock and would have shortened tree life of all citruses.

Citrange hybrids for example were started as early as 1904 [The term citrange was announced and the first variety named and described in 1904 (Webber and Swingle, 1905) and subsequently a dozen or more have been added. For descriptions of most of them the reader is referred to Webber (1943, pp. 656-65) and the literature he cites.], so it should have been well established fact before the current $billion worldwide citrus industry have embarked on using these rootstocks.

Thanks everyone for pitching in with the great info! I think I will be grafting onto like citrus from Four Winds. Red Valencia to a Dwarf Valencia, Centinial Variegated Kumquat to a Dwarf Limequat, Marrakech Limonette to a Dwarf Mexican Lime and last but not least Sudachi to a Dwarf Kaffir Lime (Which uses the same rootstock as their Dwarf Yuzu. A Cuban Shaddock if you were interested. Thanks Toby at Four Winds!)