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Messages - NateTheGreat

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401
Thanks for all the links Simon. I haven't gone through them in depth yet, but it sounds like you may have proven me wrong. The one with the hybrids is from the Israeli university I mentioned. Have you tried grafting to speed yours up? I have one megalanthus grafted onto S. grandiflorus, which seems to be growing more vigorously than my ungrafted ones, though it did take a bit over a year to push new growth, not sure what that was about. The piece I grafted is only about an inch long, possibly less, so you could make a bunch of grafts if you wanted to. I'm going to try grafting some of my seedlings once they're a few months old to Schlumbergera.

402
Nate, try searching scholarly articles for S/H Megalanthus. There is an article talking about the development of the giant Fruit.

Simon

I have already read through many of the papers that show up on Google Scholar, including those from the university in Israel that is working to develop commercially viable dragonfruit, and those that are searching for the origin of H. undatus. Can you please just post the article you're talking about? I've spent many hours already researching this subject, so telling me to do some research isn't very helpful. If you don't want to spend the time to find the article, could you just tell me if you or anyone has actually shown one of these fruiting outside a commercial plantation in Taiwan/South America? You said you knew from personal experience this one flowers later. Does that mean yours flowered?

403
Does anyone actually know if these aren't just standard megalanthus grown in better conditions? Simon, how do you know these flower later, and is it possible it's just due to growing conditions? Megalanthus are very finicky. It wouldn't surprise me if they fruit much bigger when they're in their native environment, which I think is equatorial highlands.

Nate, the Megalanthus flowers much later and I know this from personal experience and from literature. The info is easy to find if you do a search. Also, there are different selections of the Megalanthus and their appearance is very noticeable. Take a look at the pictures I posted with the gian next to a regular Megalanthus. The regular has fine that are closely spaced and are ovoid in shape where as the selected large Megalanthus is rounder and has spaced fins.

Iíve posted several threads with pictures of various selections of the giant Megalanthus including the ones that started the giant Yellow Megalanthus craze when I post about the giant fruit I found in Hong Kong about ten years ago.

I also have a post about Megalanthus crosses but youíll have to do a search to find it.

You can get slightly larger fruit with good culture but youíll get much larger fruit if you start with good genetics.

Simon

Thanks for the response Simon. I did search though, quite extensively in the past. I believe The New Cactus Lexicon is the definitive literary resource on Cactacae, and this distinction is not in there. Their picture of megalanthus fruit actually looks like a red undatus x megalanthus hybrid. And although there are many sources online claiming the existence of a giant version, I haven't seen anything definitive or scientific.

I searched through the most recent hundred threads you started, and all I found related to this was pictures from September 2015 of seedlings you were growing. Have you fruited these in the two years since? You may have posted pictures of fruit you bought ten years ago, but that wouldn't prove anything in and of itself, since the role of genetics in their size is unknown. I don't know Leo Manuel, maybe that is a name I should know, but I don't. Have either you or him fruited the giant yellow?

As for the fins, I don't think it is proof that the smaller one has more closely-spaced fins. What if it were to expand to twice the volume? The skin and fins would stretch out, making them further apart, and changing their shape slightly. It looks to me like in your comparison picture they both have about the same amount of fins/areoles, and in basically the same pattern.

It seems very strange to me that an improved version would exist (for at least ten years as you say), which this guy in San Diego (I googled his name and found an interview video) was growing, yet everybody else in the USA was growing the inferior version, and over all this time the improved version, which apparently grows true to seed, has not spread throughout the community. And it just happens to be the most difficult type of dragonfruit to keep happy. I hope you understand where I'm coming from and don't take this for insolence. I planted some of these seeds as well, but I suspect if I get them to fruit, it will be standard megalanthus (which would then leave the question of whether they're simply not true to seed...).

Edit: And the guy in your thread ( http://tropicalfruitforum.com/index.php?topic=5193.msg198893#msg198893 ) who was saying they are real and he is importing cuttings from South America is now selling seeds, which look (or looked... I thought there was a picture before) like the ones that have been showing up in SoCal stores, and which he just so happened to start offering for sale when they started showing up in stores ( http://tropicalfruitforum.com/index.php?topic=26031 ). Two years ago he was offering seeds for sale as well ( http://tropicalfruitforum.com/index.php?topic=18231.0 ), which he claimed gave true to seed thornless (!) fruit. Maybe I'm just being a conspiracy theorist here. Maybe he is importing direct as he says. It wouldn't be surprising that he gets the fruit at the same time the fruit stores do, but like I keep saying, the whole thing just seems really fishy to me.

Edit 2: This guy's explanation ( http://tropicalfruitforum.com/index.php?topic=5193.msg211534#msg211534 ) sounds believable to me, but of course is unproven as well. "I think the fruit you show us is not a different variety of yellow dragon, but a fruit obtained from different technique of cultivation. In Taiwan , the yellow dragon is grafted onto undatus or costarricensis rootstock, giving to the skinny megalanthus a strong and resistant root system. That grafted plants fruits are 250 to 500 g. True giants yellow dragons come from natural hybridization , and are usually between Ecuador and Peru . The diferences with common megalanthus, besides bigger size and production,  is its genetic. The fruits are rounder and smoth in Ecuatorian type and -round-oblong and with very short scales in Peru."

404
Does anyone actually know if these aren't just standard megalanthus grown in better conditions? Simon, how do you know these flower later, and is it possible it's just due to growing conditions? Megalanthus are very finicky. It wouldn't surprise me if they fruit much bigger when they're in their native environment, which I think is equatorial highlands.

405
Tropical Fruit Discussion / Re: On a unknown fruit pursuit! 😄
« on: December 08, 2017, 07:52:08 PM »
Aren't all cycads toxic unless specially prepared to remove the toxins? I would recommend checking before eating any more of this.

http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/toxic.html

406
Hi Carlos

Seeds arrived fine yesterday. Thank you. What is your recommendation for best results germinating the seeds? What kind of soil? How often watering?

Thanks
Brad

Not Carlos, but I collected some from one of the large fruits recently as well. I put mine in dilluted (20% or so) hydrogen peroxide to soak for a few hours, then put on the surface of saturated sphagnum moss, on a heating pad, in a humidity tray. The first sprouted in under 24 hours IIRC, and 7 days later I have tons up.

407
PM sent

408
Thanks for the interesting post. Any more info on the Duguetia sp. (image 2)? All the Dugentias I saw online were shaped like the first picture, so that one is intriguing.

409
Tropical Fruit Discussion / Re: On a unknown fruit pursuit! 😄
« on: November 28, 2017, 11:55:15 PM »
I already went this Sunday and found it! 😄 more news and pics tomorrow as I have been exhausted, I walked 4 and 1/2  hours all together in the hills, when I came back I feel my back as if somebody hit me with a stick, and my lower legs are still in pain when walking, that just reminded me I need a do more regular exercise! 😄

Wow, I can't wait!

410
Tropical Fruit Discussion / Re: On a unknown fruit pursuit! 😄
« on: November 28, 2017, 03:23:10 PM »
Please keep us posted Raul, I'm very curious :).

411
Tropical Fruit Discussion / Re: Dragon Fruit thread.
« on: January 31, 2017, 09:26:29 AM »
While my dragonfruit stems are overwintering, I noticed one of the top cuttings got cold damage, which I managed to make a top cutting of. But then I also noticed these weird discoloured spots also has appeared? Is this only because of the humidity, or should I remove them asap? Or is it something I could remove with home remedials? since most gardening shops are closed at this time of the season 'w'

I'm not an expert, but in my experience: healthy plants can fight off diseases like that, but during winter semi-dormancy their immune system (or whatever plants have) isn't very active. Monitor it and if the infected area seems to be growing/worsening, cut those sections off.

412
On the subject of mature trees, I've read claims online that there is a grove of mature tropicals on the peninsula at Quarry Lakes Park in Fremont with among other things a mature fruiting jackfruit, mango, and jaboticaba. I'm sure being on the lakefront helps.

413
I think the following should survive here:
Muntingia Calabura
Pawpaw
Jaboticaba

And these may:
Eugenia candolleana (Rainforest plum)
Atemoya/Cherimoya
White Sapote
Eugenia neonitida (Pitangatuba) (grows well in a pot so could be taken indoors in the winter)
Possibly some mangos

414
Your main dragon fruit looks okay to me, but I'd recommend cutting off all rotted sections. In the first of the three pictures, if the top section is squishy I'd say cut that off too, as well as the two obviously dead arms. The main section should be alright though. The third one's toast. Feijoa is pretty hardy, but it's one of my favorite fruits, so at least that one's okay.

415
Tropical Fruit Discussion / Re: Introduce Yourself
« on: January 12, 2017, 09:00:20 AM »
Awesome to see someone who is in the same area as me and shares my love for epiphytic cacti. I'm thinking of buying Selenicereus megalanthus and purple/pink Hylocereus hybrids soon. I currently have an unknown Epiphyllum/Selenicereus, Selenicereus grandiflorus and Hylocereus undatus white.

Hi Dylan.

I have:
Selenicereus vagans
Selenicereus megalanthus
Selenicereus setaceus
Selenicereus grandiflorus
Selenicereus anthonyanus
Hylocereus undatus 'Purple Haze'
Hylocereus undatus 'Natural Mystic'
Hylocereus undatus NOID White
Hylocereus undatus 'Bruni"
Disocactus flagelliformis
Acanthocereus tetragonus
Epiphyllum oxypetalum
Aporophyllum 'Temple Fire'
Some assorted hoyas, sansevierias, epiphyllum hybrids, and outdoor plants

I can give you a rooted cutting of purple haze if you're ever in the east bay. I've had bad luck with megalanthus and can't take cuttings this year. The only things I can't do cuttings of now are megalanthus, setaceus, natural mystic, and acanthocereus.

416
Tropical Fruit Discussion / Re: Introduce Yourself
« on: January 11, 2017, 11:13:48 AM »
Hi everybody. I'm Nathan, been lurking for a bit and figured I'd make an account. I'm from the SF Bay Area, so somewhat limited options for outdoor planting. I've been growing outdoor cacti for years, but have gotten interested in epiphytic cacti (which I move inside for the winter). The only dragonfruit I've tasted was a white one--which didn't do much for me--but I have some reds and purples that should fruit this year or next. I hope to eventually do some intergeneric hybridization in that area, with hylocereus, selenicereus, aporocactus (disocactus), and possibly acanthocereus, though I might have to learn how to do embryo rescue for that.

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