> what do you mean when you say not all like poncirus fruit?
The fruits look just like mandarin.

> Are there some like PT-fruits?
No one.

> If you have both rtifoliate and mono/bifoliate branches you shold cut trifoliate back.
I have no trifoliate branch.

> are these twigs just PT
If my idea is right (chimera) they are pure PT.

but why does my plant (and the one of Bernhard Voss from whom I got mine) produce pure PT twigs -and yours not?

and: all chimeras I know (Bizzarria, dt Landsknechthose) have "mixed" fruits with traits of both parts. But "Prague"-fruits are said to taste nice -no trace of PT.

> Why does my plant produce pure PT twigs -and yours not?
I think it is pure chance.

> all chimeras I know (Bizzarria, dt Landsknechthose) have "mixed" fruits with traits of both parts. But "Prague"-fruits are said to taste nice -no trace of PT.
I don't know why. Probably the way the different cells are dispatched in the meristem layers.

Ilya wrote: severe winter exposures in Austria and Germany could result in partial dying of satsuma cells in chimera with poncirus part taking over and colonizing the meristem

I found these trifoliate twigs only on my motheplant which I keep indoor over winter. The in-ground tree outdoor did not yet show this phenomenon.

Here atr my thoughtd on cisuma.


Er have 2zygotic hybrifd and a lsb mafe domatic hybrid.

The strsight branched fotm is satsuma pollen on pt.

Frsgon lime is satsuma pollrn on fd.


The somatic jybrid id a lab inducrd combination of satsuma tissue and ff tissue.

The 3 can easily br separated by a gene and chromosomr check.

Tje grne chrck will shoe up the gene that causrs teisting in fd.

Tje chromosome check would be expected to show that dragon lime is a normal diplode and cisuma prague id at minimum a quadruploid.

If they wete sister seedlings tjey would be similar within the varience within the fd gene pool.

If they hsve diffetent ploidity then it may be exprcted they are significantly diffrtent withcan go into possible digfetencrs and how they msy be expressef in the chimeta if someone wants. cisuma prague showing chimeric behaviour.

Firstly I apologise for the number of spelling errors in my last addition to this thread but more importantly for the mis-information it contained.

It is unlikly but not impossible it is a man made tetraploid that has broken down and prodived sprouted of poncirus. Natural tetraploids don"t do this and I cannot think of a scientific paper showing the lab made ones do.

However, man made and natural chimeras do. So the correct proposal that fits the evidence is a lab made graft hybrid.

A suspension is made of the living cells of satsuma and poncirus. As they grow they can be made to form clumps of mixed cells. A clump or part thereof can be removed into a different growth media where it produces roots anf shoots. That is a graft hybrid hss been produced.

The exact composition of the hybrid is determined as the plants grow out. If looking for impoved hardiness might select grafts that look more like poncirus.

No matter which are selected poncirus and satsuma would tend to segregate in plant and do different roles. In this case it maybe poncirus has taken role of under bark. As with the graft chimera citrange mentions the cells are admixed irregularly and poncirus cells can arise as surface bark anywhere on the plant. Occassionally they will arise and dominate a bud.

In the 1st poncirus sprout that bud remained dormant for sometime, in the sprout at the top of the plant it may have grown out during active growth.

Chimeras are indeed strange things and no 2 are ever identical. As far as I am aware the laburnocystus chimera has only ever be produced once, similarly with the private/lilac chimera and the limited citrus chimeras.

Finally, I think chimeras as a route to hardiness in citrus has been abandoned. Too unprictable and did not give edible fruit. Hence the plant from prague was a research project that has given a useless weed.

My pictures (Galaxy SII):
One of my two Pragues in ground.

Sylvain,
The appearance of your citsuma Prague is very different from mine. Only leaves look the same.

Can you take pictures?

Sylvain, How old is your citsuma?

Jimy, they are five years old.
My Pragues are outside in ground.
The first branches were twiggy, weak and bushy. I forced the best placed ones upward and they grew faster and stronger.
It is very hard to take a picture of the tree's structure because everything is green in a garden. I shall try tomorrow to take picture with the flash on. Usually it makes the background darker.

Hi,
If it's really a chimera, we also need to consider where, on each mother plant, the budwood was taken (no stability on a chimeric plant).