Tropical Fruit Forum - International Tropical Fruit Growers

Recent Posts

Pages: 1 [2] 3 4 ... 10
Limited Kuini seeds added !!!
Thanks for the info, Iím not actually sure the temps, just what I read, I will set up the pvc and plastic this weekend and get the info I need for the future blast that we may get.
Cold Hardy Citrus / Re: Graft chimeras and hardy citrus
« Last post by Vlad on Today at 11:21:00 AM »
Is cold hardiness a characteristic of the cells or of the entire organism? If it is a characteristic of the cells, then your idea will not work because the cold susceptible cells will die UNLESS the cold hardy cells can somehow make the cold susceptible cells cold hardy.
I love your idea and wish you great success.
Tropical Fruit Discussion / Re: Tenom agricultural park
« Last post by Gouralata on Today at 11:16:44 AM »
Yes it's a little bit like Garcinia forbesi and Garcinia parvifolia but may be the labelling was not good because few year ago in Kuching I tasted Kandis (Garcinia nitida) and the fruit was yellow and sour. That's the problem in this country the scientifics names may change if you're are in Sabah or in Sarawak (not a lot correlation between the specialists). It's the same thing with the labelling of Salacca edulis (I think it's a kind of affinis)


How are your Salacca plantation ?
Tropical Fruit Discussion / Re: Tenom agricultural park
« Last post by Finca La Isla on Today at 11:09:45 AM »
Did you try the garcinia nitida?
Cold Hardy Citrus / Graft chimeras and hardy citrus
« Last post by SoCal2warm on Today at 10:57:18 AM »
How much do we know about graft chimeras and hardy citrus?

Graft chimeras are a sort of hybrid, but not a genetic one, between two different species that resulted through grafting, typically from growth offshoot coming out of a graft union area and then separately propagated. The graft chimera is comprised of a mixture of cells between the two citrus types.

There are different types of graft chimeras. The most homogeneous ones, and the ones of most interest are periclinal chimeras, which typically involve a single layer of cells distributed throughout the growth of the plant.

I'm also experimenting with joining together different seedlings together at the earliest stage of their development, so that the seedling sprout consists of a mix of cells from two sources. (This takes some very fine precision and a good eye)

How much hardiness can a cold hardy variety confer to another normal citrus variety when they are part of a chimera together?
Could this be a viable strategy for developing new cold hardy citrus?

From what I've seen, many obscure citrus varieties that are believed to have originated as a graft chimera have not actually been confirmed as being so, so it's not truly known with certainty.
The only way to be sure is if there's obvious phenotypical differences in different parts of the tree, or on different parts of the fruit, but in that case its not a very homogenous chimera, and not a periclinal type of one, which would be expected to give the best hardiness because the cells are more evenly distributed throughout the plant.

Say for instance we had a Satsuma graft chimera together with a Satsuma-trifoliate (citrandarin) hybrid.
The Satsuma-trifoliate hybrid within the chimera system could be a triploid with only one of its three sets of chromosomes coming from trifoliate.*
That could potentially make the resulting chimera nearly indistinguishable from normal Satsuma.

* (This could come about through hybridizing a tetraploid Satsuma with a normal diploid trifoliate, or the pollen may have been unreduced coming from the Satsuma, or the female parent being used could have been a "seedless" triploid, and so any rare seeds that did manage to form would be much more likely to have originated from an unreduced female gamete, since triploid cells that undergo meiosis have a fairly high chance of turning out aneuploid and won't develop. Also, you have to have a non-nucellar citrus variety for the triploid to turn out seedless, otherwise the seeds are still going to form from nucellar tissue even though the zygote failed to develop.)

Prague Citsuma is believed to be a graft hybrid, but it has not yet been positively confirmed with certainty. (A few basic tests were done but were inconclusive)

Tropical Fruit Buy, Sell & Trade / Re: Low Chill Stone fruits
« Last post by spaugh on Today at 10:19:17 AM »
Heres the list of trees Ive got.

Tropic Gold
Gold kist

Cot n candy
Flavor delight

Minnie royal
Royal lee
Riyal crimson

Arctic Star white subacid
Double delight
Snow queen
Spice zee nectaplum

August pride
Evas pride
Florida prince
May pride
Mid pride
Tropic snow


Emerald drop
Flavor grenade
wow that's some serious mislabeling :D
Tropical Fruit Discussion / Re: Visit to Malaysia.
« Last post by DurianLover on Today at 08:53:31 AM »
Could you please share name of the nursery where you got grafted durians? Did they survive bare rooting?
Manggis Mesta has viable seeds, but you need to eat like 1 kg to find 1-3 good seeds.
That's the only mangosteen I'm growing. All from seeds. Don't have regular mangosteen.
I got the grafted durians from 'Karak Tong's Nursery'. I have one 4 year old Mesta seedling and now one grafted one.
25 years ago when I went to Malaysia, I ate only Kampung durian, because that was the only one available then. 5 years ago when I went to Malaysia,I ate only Musang king. But this time, thanks to TFF, I knew which all durians to ask for!!! Similarly during all my visits, my sister stopped me from buying 'Cempedak' saying it was no good. But this time, thanks to TFF, I bought and ate Cempedak, and believe me it is far better than any Jackfruit I have eaten in my life!!

Thank you for letting us know.

You can come to SL, it's durian season now. $2-4 for seedling fruits. If lucky, can get quality as good as D24 sometimes.
Pages: 1 [2] 3 4 ... 10
Copyright © Tropical Fruit Forum - International Tropical Fruit Growers