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Messages - chris03

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Tropical Fruit Discussion / Re: Proposal: Dwarf Guava Project
« on: January 11, 2025, 01:10:05 PM »
I have this old research article that talks a little bit about how dwarf guavas were bred and their potential for dwarfing rootstocks in guava. From what I understand triploid and diploid guavas were crossed, then seeds separated based on weight. The small seeds yielded 88% tetrasomics and trisomics, which were the dwarfing types. Im not sure if I can upload a file, but if you would like to read the full article just message me and I can send it over.

Theres also this article: https://www.cabidigitallibrary.org/doi/pdf/10.5555/20113181193
They have developed some dwarfing rootstock, the most promising of which is called aneuploid #82. It'd be awesome for someone to recreate this and disperse the material.


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Citrus General Discussion / Re: UF researchers exp breakthrough approach to combat devastating citrus greening
« on: January 10, 2025, 07:43:13 PM »
Personally, I dont think the long term solution is a GMO or the "peptide". What growers are doing now is injecting trees with oxytetracycline antibiotics. I doubt theres much residue in the fruit but I'm not sure. This may be new in citrus, but the apple and pear industries have been doing this for a while to my understanding. So to all those who are into the "no antibiotics ever" foods, maybe do some digging on that.
I think that the best solution is to breed a tolerant scion AND rootstock and the combination will be able to tolerate and produce through the disease. There are actually quite a few already released and seem very promising. Particularly the UFR series rootstocks I've got a few trees with very susceptible scions grafted onto UFR-17 in my yard under HEAVY disease pressure and they seem to do ok. I imagine if it was a more tolerant cultivar it would do much better, I actually started replacing with more tolerant scions.
I am also helping out with some research in my university we have some wild Australian species completely resistant to the bacteria AND they have an early flowering (precocious) gene. The f1, backcrosses, and f2 seem to be very promising, fruit is still relatively small and acid, but significantly larger than the parents species. This is definitely a more long term project focused on total resistance, but there is plenty of material that is ready and tolerant. Just my 2 cents. :)

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Citrus General Discussion / Re: UF researchers exp breakthrough approach to combat devastating citrus greening
« on: January 09, 2025, 03:18:39 PM »
I worked in the Millenium block for a few years. It's a great trial to show how scions and rootstocks interact and impact traits like vigor, yield, and tolerance, but I am almost certain that nothing in there is the solution to greening unfortunately. They do have some pretty decent grapefruits in there, ill be visiting them tomorrow. For a few years their number one tolerant cultivar was some kind of red grapefruit, since I was out there almost daily I learned to differentiate on leaf shape, growth habit, etc. and I was able to identify that they were a set of mislabeled trees.  Glad to see the millenium block getting some attention on the forum!  :D
Heres a pic I took some years back!

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Tropical Fruit Buy, Sell & Trade / Re: For Sale: Sylvia Guava Seeds
« on: January 07, 2025, 05:35:46 PM »
Quote from: sc4001992 on January 07, 2025, 01:08:35 AM
I shipped out seeds to everyone that has ordered up to 1/5/25.
[/quote
Thanks for the update Kaz!

-Chris

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Tropical Fruit Discussion / Re: Campbell white sapote available
« on: December 30, 2024, 10:00:42 AM »
Quote from: Lets Mangoooo on October 13, 2024, 12:46:05 AM
I hear finding a good seedling is like hitting the lottery. This trec plase must be the luckiest place on earth.  The newest best white sapote, mamey, and now avocado have all been found there.

I wouldnt call them new or best. These trees have been there for a long time. From what I understand, TREC doesn't plant out random seedlings, they collect seeds or material from trees with different characteristics or from different locations, TREC isn't open to the public like FSP, but they will allow people to go and collect budwood from these tree if you have a connection there or begin to establish one. I think embellishing these cultivars is an effective way to conserve them and bring attention to them. But I am almost certain that there are others that are better or equal. I also think that these cultivars havent been studied, propagated, or dispersed enough to give a good description of their pros and cons, I'd be hesitant to call something the greatest until consistency is seen.

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Tropical Fruit Buy, Sell & Trade / Re: Looking for Okinawan snack pineapple
« on: December 28, 2024, 04:45:23 PM »
The company is fukuya Japanese food or fukuya foods in British Colombia Canada. According to their Instagram they had the Okinawa snack and Japanese peach pineapple available last February. I asked through Instagram and they said they do not ship to US.

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Tropical Fruit Buy, Sell & Trade / Re: Looking for Okinawan snack pineapple
« on: December 28, 2024, 09:58:26 AM »
Yeah I've searched what seems like everywhere for bogor (snack) pineapple, peach pineapple, and other specialty Japanese cultivars but no one seems to have them. Closest I came was a company in Canada that import specialty Japanese fruit. But I don't think that they ship to US, waiting on a response. Maybe someone with more experience can chime in.

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Tropical Fruit Buy, Sell & Trade / Re: Looking for Okinawan snack pineapple
« on: December 26, 2024, 08:50:39 PM »
Were you ever able to find any?

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Tropical Fruit Discussion / Re: Semil 55 Avocado
« on: December 19, 2024, 08:58:53 PM »
Went by the fruit and spice park today. One semil 55 left on the tree as far as I can tell. Picked another off the ground and waiting for it to ripen. It was under the semil 55 tree so I think its from that tree. I collected some budwood as well, will be grafting the scions some time tomorrow. Will update on the taste but in all honestly don't have too much experience trying different kind of avocados.

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