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Topics - brian

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1
Tropical Fruit Discussion / first canistel ripened
« on: September 26, 2022, 02:53:23 PM »
My grafted Bruce canistel set a single fruit that I've been watching for months.  It finally dropped on its own today and I found it on the greenhouse floor.  It is really tasty, outermost flesh is a bit dry but gets significantly moist towards the inside and much better than the ones I found lying on the ground at Fruit & Spice park (which were more dry and latex-ey). 

I'm very pleased!  There are many more new fruitlets that have formed in the past month so I expect a significant crop next year.





here it is on the tree a month or two ago when it started becoming yellow.  This tree is about 4ft tall and wide


2
I expect quite a few people are looking for this... I've never seen the plants for sale, only seeds (rarely).  I know fruitlovers/Oscar has them seasonally but I haven't been able to get any to germinate.  And I'm told it is male/female so you need multiple seedlings to expect fruit

3
Tropical Fruit Discussion / Misc Pouterias, bearing time from seed?
« on: September 19, 2022, 10:38:11 PM »
I have seedlings of Ross Sapote, Lucuma, Olosapo that are all happy and healthy, but as space becomes tight I am wondering how long I might have to wait for fruit, and how big these will be by that time? 

I've seen grafted Ross Sapote for sale occasionally, but not the others. I've never tried the fruit of any of them, only canistel, and starting to doubt it's worth the wait just to try them.  It might make more sense to fly somewhere that has them in season!

It's shame as they are such nice looking trees.

4
Tropical Fruit Discussion / red jabo first flowering
« on: August 24, 2022, 11:31:02 PM »
Not as far north as our Canadian friend, but I am still happy to see flowers for the first time.  I bought this tree as a tiny seedling a few years ago.  It is about 3ft tall (not including container)






5
Not often you see tropical fruit in the news so I thought I'd share this link.  This might be common knowledge to people on this forum, I don't know a lot about marang.  I don't think I've seen the wild type discussed here.

https://www.inverse.com/science/indigenous-knowledge-botany-plant-species

article text:
Quote
Here’s the background — In the gardens of homes in Borneo and the Philippines, it’s not uncommon to find a cultivated sweet fruit tree with thick pulp that bears a strong resemblance to jackfruit and breadfruit. The official scientific name for this tropical plant is A. odoratissimus, though locals refer to the plant by more colloquial names like marang and tarap.

An eighteenth-century Spanish friar who researched botanical plants in the Philippines, Manuel Blanco, was the first person to formally describe A. odoratissimus. Nineteenth-century Italian botanist, Odoardo Beccari, also later described two mature fruit specimens that scientists associate with A. odoratissimus.

Botanists also knew a wild relative of this tree existed that was somewhat different from the domesticated variety, but scientists simply thought it was a variant of the same species. The wild relative contained smaller, less-sweet fruits with thinner pulp and longer hairs.

But unbeknownst to scientists, Indigenous communities in Borneo and the Philippines had long classified A. odoratissimus as not one species, but two clearly separate species, with each fruit tree clearly marked by distinct features.

The Iban people in Sarawak — a Malayasian state in Borneo — recognized the cultivated and wild varieties of the plant as two species: lumok (cultivated) and pingan (wild). The Dusun people of Sabah — another state in Borneo — similarly recognized these plants as separate species known as timadang (cultivated) and tonggom-onggom (wild).

“I think that scientists working on these plants were not aware of the Indigenous classification system, because scientists have not often engaged with that type of knowledge,” Gardner says.

What’s new — In this latest study, Gardner’s team set out to bridge the gap between scientific and Indigenous knowledge. Specifically, they sought to scientifically verify whether these two plants, were, indeed, two genetically distinct species.

Through their research, the scientists confirmed the traditional knowledge of the Dusun and the Iban: The wild pingan is genetically distinct from the domestically cultivated plant lumok.

“The plants have noticeably different fruits which were evident to Indigenous people who were constantly around the plants but were not evident to scientists working largely from preserved specimens,” Gardner says.

With this study, science now formally recognizes and validates pingan as its own separate species. Therefore, pingan needs a scientific name so it can fit with the Linnaean taxonomy, the standard of scientific classification which Swedish botanist Carl Linnaeus established in the 1700s. Gardner’s team settled on A. mutabilis, a reference to the Italian botanist Beccari’s research on the plants in 1885.
Species tree figure from the study
A species “tree” showing the genetic distinction between and geographic origins of the two fruit species, known colloquially to Indigenous people as pingan and lumok. Gardner et al/Current Biology

How they made the discovery — In 2013, the researchers began their fieldwork in the Malaysian state of Sabah in Borneo before expanding to other areas. Gardner was intrigued by the unique plant, A. odoratissimus, especially for its delicious taste.

“We wondered whether there were any genetic differences between cultivated and wild plants,” Gardner says.

But the scientists really honed in on the Indigenous distinctions between the two plants in 2017, when they started collecting plant samples with two Iban field botanists, Jugah anak Tagi and Salang anak Nyegang, who are also co-authors on the study. Their collaborators from the state of Sabah in Borneo, field botanists Postar Miun and Jeisin Jumian, also confirmed that the Indigenous Dusun recognize the plants as two separate species.

“These findings led us to realize the importance of considering indigenous vernacular names in thinking about species limits,” Gardner says.

So, Gardner’s team used genetic sequencing to confirm the Indigenous classification of these two plants. Using field samples collected from Borneo, the scientists deployed a method known as target capture, which enriches DNA and allows researchers to efficiently sequence genes from the plant. This method allowed them to analyze the Italian botanist Beccari’s botanical samples from the 1800s, comparing them to modern plants.

“Because the target regions do not need to be on intact fragments, this method is suitable even for old samples with degraded DNA,” Gardner says.

Using these methods, the scientists were able to confirm there were “two distinct genetic clusters” for lumok and pingan.

Why it matters — The study’s publication is timely as scientists are collaborating more with Indigenous communities on projects ranging from gauging wildfire risk to sucking forever chemicals — chemicals known as “per- and polyfluoroalkyl substances” that linger in the environment for years — out of the ground. With this new study, we can add another area of scientific research where Indigenous knowledge will prove invaluable: species classification.

“People who live close to plants and see them on a daily basis have a different kind of knowledge about them that is different from and complements the way scientists think about plants,” Gardner says.
Tropical rainforest in Sabah, Borneo
The researchers conducted their fieldwork and collected plant samples from the Malaysian state of Sabah in Borneo. Getty

What’s next — To best protect a species, researchers must classify it scientifically within the Linnaean taxonomy. To conserve a species, scientists must name it, otherwise, it won’t appear on the IUCN Red List — the official list of plants and animals that conservation organizations use to classify endangered and threatened species.

But current scientific classification is lacking, and we can partner with Indigenous communities to fill in the gaps in our knowledge of species, the study argues.

“While Linnaean taxonomy offers a broad framework for global comparisons, it may lack the detailed local insights possessed by indigenous peoples,” the study authors write.

By marrying scientific knowledge with Indigenous classifications, we could potentially protect species from extinction. Due to manmade trends like global warming and deforestation, species are disappearing nearly every day. The UN reported in 2019 that one million animal and plant species faced extinction.

Gardner says that scientists are often already working with Indigenous guides when they conduct fieldwork, so it would be a natural next step for researchers and Indigenous communities to collaborate to classify species.

“This kind of collaboration can improve our understanding of biodiversity and can improve recognition of the contributions Indigenous people have been making to science all along,” Gardner says.

6
I start all my new citrus trees in rootmaker pots when I receive them.  When they have produced a few crops of fruit I then decide their fate.  The best ones are planted in the ground in my greenhouse.  The next best I put in a solid container and prune foliage and roots to a reasonable size, usually 3-4ft of canopy.  The rest, because it makes me sad to totally lose a variety, I graft to flying dragon and keep as forever dwarfs and then get rid of the original.  This ends up reminding me a lot of bonsai culture, so I read a bit on bonsai to see if there was anything applicable.  Bonsai seems to be mostly focused on appearance but the one thing that stuck with me is the very wide & shallow containers used.  I remember seeing photos of large hurricane-overturned in-ground citrus trees and being surprised how wide & shallow their roots are.  And I have found the most common cause of decline in my container trees is too wet or too dry soil, sometimes seeing both in one container... a rotting impermeable layer on top and dried out soil below.  Despite my best efforts to use free-draining mixes I forget to repot and trees that seem to look great are actually suffering from mulch breakdown, and I don't notice until it has become severe.  So, I happened to find some 15gal pan-like containers at the hardware store and I figured I would give them a try.  They are 15gal, about 2.5ft wide but only about 5in deep.  Now that winter has passed when I pulled all my container trees out of the greenhouse for repotting I spread and cut back the roots until they would fit in a much shorter space.  For the tiny flying-dragon-grafted trees I did something similar but with smaller nursery pots and cut the excess rim off.

this is a marumi kumquat



this is a guava, but same idea



I did this with a half dozen trees but I didn't take pictures of them all. 




7
Tropical Fruit Buy, Sell & Trade / WTB eugenia lutesens
« on: April 12, 2022, 10:42:41 PM »
Of all the popular eugenias this is the only one I have been unable to find.  If anybody knows a source I would be grateful.

8
Tropical Fruit Discussion / When/where to top soursop
« on: April 09, 2022, 12:10:07 PM »
I have to keep my container trees at about 9ft and in-ground trees at 10-12ft, so at some point I will have to cut this down.  Would I be better off doing it now, or waiting until it is actually scraping the ceiling?   And any suggestion on where to cut?  I am thinking of cutting at 'A' for now.  The tree is about 7ft now not including container



9
Recipes / chopped kumquats in vanilla ice cream
« on: March 30, 2022, 10:31:20 PM »
This is unbelievably good, like "creamsicle" flavors but much better. 

10
Citrus General Discussion / separating seedlings from same seed
« on: March 30, 2022, 10:15:43 PM »
Because citrus are often polyembryonic it is common to get multiple sprouts from a single seed.  I remember people posting occasionally asking if they must be separated early, carefully, and so on.  Same goes for community pots with many seeds in one container. 

I was never really sure about it until now as I always killed the weakest sprout in each tray plug (by cutting the stem down with scissors) because that is what I had always done with things like tomatoes and peppers.  However, this year I had a batch of citrus seedlings that I ignored because I intended to throw them away, and was only growing to try to confirm the type. 

Anyway, they were extremely easy to split, they came apart effortlessly and were not really attached in any way.  So I see no reason not to let them all grow if you want as many seedlings as possible.  The multi-embryo seedlings are just as healthy as the singles in my tray.







11
Tropical Fruit Discussion / Giant lau lau / syzigium coarctatum
« on: March 05, 2022, 07:56:27 PM »
Anybody growing this?  I found some on tbe ground at fruit and spice park today and it was like eating a juicy rose with texture of marshmallow.  Oddly good.  I have never tried any other syzigium so I don't know how similar it may be to malay appe, wax jambu

12
Tropical Fruit Discussion / sapodilla recommendation?
« on: February 24, 2022, 12:13:20 AM »
I have only tried two sapodilla fruit and both I think tasted like pure brown sugar, too sweet for me.  Is there much variance in the available cultivars?   Anything with a bit of tartness?

I saw the Lara Farms post and they claim to have
Alano (dwarf tree)
 Morena Hasya (makes very good large fruit)
 Makok (dwarf tree, from Thailand)
Tical Molix (almost completely red flesh)
Thomas (seedless)
Silus Woods (dwarf tree)
 Butterscotch

13
Tropical Fruit Discussion / Anything in season in SE FL in early March?
« on: February 12, 2022, 03:03:30 PM »
I am going to be in Miami area then.  I am planning to check out the Fruit and Spice park but it seems they stopped updating their "what's in season" pages since Covid started

14
Tropical Fruit Discussion / Pouteria pollination
« on: January 31, 2022, 09:57:09 PM »
I have three pouteria trees that have set significant blooms once or twice but no fruit or even fruitlets yet.  I don't actually know a whole lot about them, is it likely that they need same-species cross-pollination?  They are:  canistel (grafted, Bruce), green sapote (grafted), abiu (seedling).  I don't have more than one of each species.

The canistel is in-ground in my greenhouse and probably doesn't seem many pollinators.  The abiu and green sapote are in containers and were outside during bee season.

15
Citrus General Discussion / huge grapefruit blooms
« on: January 27, 2022, 09:19:12 PM »
My containerized Marsh grapefruit is completely covered with flower buds, to the point where it doesn't even look like a citrus anymore.  At its current size I will probably only let it keep six or so fruits, but the flowers will be nice.  I am thinking I might chop my Flame grapefruit in half and plant this one right next to it so they can share the same spot in the greenhouse.









16
I saw this at a nearby nursery.  No label.  Doesn't look like anything I've seen before.







17
Tropical Fruit Discussion / Best tasting eugenias?
« on: December 15, 2021, 11:04:08 PM »
Eugenias seem to be really easy to grow, and there is a huge number of varieties.  Any suggestions on best types?  I have only tasted surinam cherry (excellent) and pitangatuba (okay) so far.   

18
Citrus General Discussion / when to pick Chandler pummelo?
« on: November 12, 2021, 11:52:05 AM »
This is the first year that my container Chandler has produced full size fruit.  Previous two years it is had made a few fruit that reached only grapefruit size. 

Any suggestions on when to pick this fruit?  It is the only one on the tree so I can't do the usual sampling.




19
Citrus General Discussion / test post
« on: October 08, 2021, 04:07:16 PM »
I have not re-registered.

Creating new topics seems to be ok

20
A couple years ago I bought a 'Mexican Cream' guava at a lowes or home depot store.  I noticed the fruit is pink, while Mexican Cream is supposed to be white?  Somebody mentioned in another thread that this has been very common and lots of mislabeled guavas at big box stores.

It made a lot of fruit this year, and it is pretty tasty.  I wanted a pink variety anyway... any idea what type it might be?  It looks more pear-shaped and avocado-like than the round pink guavas I see posted here often.






21
Tropical Fruit Discussion / seedlings unable to shed coat, lose seed leaves
« on: September 27, 2021, 11:07:38 AM »
I have noticed this happening with certain types of tropical seedlings.  A strong root emerges and digs into the soil, the seed is lifted into the air as the seed leaves begin growing, but the seed coat is never shed and the seed leaves die.  Luckily, because these tropical seeds are fat and full of energy, they tend to eventually grow new leaves and carry on fine.  I saw this happen to every single durian seed I sprouted, and now I see it has happened to every kepel seedling.  I remember that sugar apples had similar issues but not as severe, they usually got enough of their seed leaves out that the tips would simply die and drop the seed shell, and the leaves could open.

Is this normal?  Environmental?




22
Tropical Fruit Discussion / when to pick black sapote?
« on: September 21, 2021, 01:23:08 PM »
My seedling black sapote's first fruits seem to be starting to reach full size.  When should they be picked?  Are they like avocados where they must be picked and left to ripen off the tree?  Or can they be left on the tree until they become soft enough to eat?

They are still very hard if I give them a slight squeeze.



23
Citrus General Discussion / Osmocote Plus is cheap on Amazon right now
« on: September 01, 2021, 11:06:59 AM »
I have a price alert set up when it goes below $15 for an 8lb bag.  Currently $13 on Amazon, limit of 3 unfortunately.  It typically sells for ~$23 for an 8lb bag so I always stock up when it goes on sale as I go through 16lbs a season.

https://www.amazon.com/Osmocote-Outdoor-Smart-Release-8-Pound-Fertilizer/dp/B00GTDGMHC/

24
Citrus General Discussion / Another fruiting rootstock tree
« on: August 16, 2021, 10:56:11 PM »
I was pruning what I thought was my overgrown Cara Cara and knocked a few fruit off.  Still green but seemingly full size.  The fruit were unusually light, and now I see why.  This is rootstock fruit! Cuban Shaddock, I assume, as this was a Fourwinds tree from 2014.  It looks the remainder of the scion died this year and I didn't notice the rootstock took over. 

This is the second rootstock tree I have had produce fruit at a very low node count.  The other is some kind of trifoliate orange, I believe C-35. 

Should I just toss it?  I can't imagine why anybody would want this as a rootstock, and I'm not sure why Fourwinds used it.  It seems very vigorous.  The UCR description for Cuban Shaddock fruit doesn't sound appealing.  This unripe fruit I just ate had a lemon/lime/citron taste.







25
Citrus General Discussion / compact lemon options
« on: July 24, 2021, 12:35:24 PM »
Right now I have Eureka, Lisbon, St Teresa, Meyer, and Sunquat.   Only the meyer and sunquat are anything close to compact but they don't have the true lemon taste.  I bought the Lisbon to try grafting onto Flying Dragon, but the parent plant looks so vigorous that I'm doubtful that even the dwarfing rootstock will keep it tame. 

this site seems to suggest Lisbon-on-Flying-Dragon is workable:
https://boutiquecitrus.com.au/finger-lime-recipes-and-ideas/

and here's a picture of what I am guessing is Lisbon-on-Flying-Dragon:

I guess I will have to try it and see.

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