Tropical Fruit Forum - International Tropical Fruit Growers

Hello, I tried this about two weks ago, so I can' t tell you a final result, but up to now the grafts are green.
I grafted Chandler and Satsuma on an elder well growing lemon. Best regards Frank

Hello Ilya,
how do you go on with your 3 very frost hardy hybrids, do you graft them on a mature plant to get early fruits ?
Have you already done this ?
Sorry for the curiousity, but this is a very interesting project ?
Best regards Frank

50% success, after 10 days the Dunstan/FD graft is growing, as expected the Star ruby/FD graft failed.
But very early grafting is possible though difficult. As it seems there is nearly no lack of growing as if grafting older plants. Regards Frank

very nice and interesting 

Yes Millet I' ve seen on you tube, but this is still more complicated and needs special technics and tools.

I have a lot of different 4-6 week old citrus seedlings and they are growing nice. So I thought if in this age grafting heals faster. The more difficult handling due to the only 8 to 10 cm high seedlings would be the price. If my theory of faster healing is true.
I will try it the next days. But if everyone has experience, it would be interesting to hear about ?
Best regards Frank

I read a few articles about some advantages of tetraploid citrus, but I couldn' t find out yet, how I can recognize if a seedling or a plant has tetraploid genetic.
Are there citrus species which are as default tetraploid or are there exterial signs e.g. as leaveshape, smell or other exterial attributes ?
Very interested to learn more about .

Hello from Germany, I' m just storing and eating a few star ruby grapefruits from Florida. They are quite good and I enjoy them. Due to loving citrus plants I also germinated some seeds of them and have a few nice sprouts. But I also asked me the question if I could get HLB over the fruits or over the seeds. I treated the seeds a while in Chinosol and peeled them before planting them, but I don' t know if this would help if there would be a potential risk of infection with HLB or would it either be a too cold climate in Germany for HLB in zone 7 ( 8 in few regions) ? Does everyone know ?
best regards Frank

Hello Kumin,
nice post which expresses a lot of the difficult but interesting and complex sides of hybridization work. I'm in regard to citrus cultivation at beginner stage but enjoy it very much, so next spring/ summer I expect some more of my citrus varieties flowering and I will also try some small hybridizations with the plants in my citrus yard. What I don' t really know is which citrus varieties are mono-/ polyembryonic, nucellar or zygotic or steril/pollensteril.
All attributes one should know before thinking of doing hybridization. Could you or other experts in the forum show me a link, where the citrus varieties are described concerning their relevant attributes concerning hybridazation ?
This would be very interesting and helpful if such a description exists.
Thanks and best regards Frank

Thank you Ilya, seems to be a very good quick selection program 👍👍. Next interesting step will be fruit quality and fruit size, but think this will need still some years.
Thanks for sharing your very interesting breeding results.

Very interesting, thank you Socal and Ilya.
Does anyone know, what has happened with this 17-11 pummelo x citrumelo hybride, due to the fact that this article is wrutten 1998, is this cultivar bred further are the further characteristica like fruit quality good !

Do we know what happened to this interesting hybrid?
I has not be able to find any further information on it.
In  leaf freeze resistance tests it was shown to have a similiar or even better hardiness than US119.

http://hortsci.ashspublications.org/content/33/4/744.full.pdf

I think this is an interesting question, if it should be possible to cross a quite cold hardy pomelo like e.g.bloomsweet with an very coldhardy citrumelo/Citrange like 5*, Dunstan or  Morton, to get better and bigger fruit than Citrange/citrumelo and perhaps little less cold hardiness - did you meanwhile get an answer Ilya ? Anyone else or is someone already working at this subject ?
best regards Frank

Thanks, very interesting topic and very good explanation. So Kaboshu, if similar cold hardy to yuzu could also be a good choice for middle Europe. But I'm currently not sure if Kaboshu is sold in Europe. At least it is not widespread.