Author Topic: US-802 citrumelo  (Read 1972 times)

Perplexed

  • Member
  • ***
  • Posts: 227
    • 8a GA
    • View Profile
US-802 citrumelo
« on: August 10, 2023, 12:57:25 PM »
Citrus grandis 'Siamese' X Poncirus trifoliata 'Gotha Road' https://citrusvariety.ucr.edu/crc4266

When used as a rootstock it makes a vigorous tree and extremely large tree. I see that it's crossed with Siamese pummelo, which could either be the acidless version or the other siamese pomelo, as they have two accessions of siamese pomelo. It would be interesting to use this in crosses instead of dunstan since it may carry acidless in the gene pool if it uses the siamese acidless pomelo 🤔

mikkel

  • Hero Member
  • *****
  • Posts: 619
    • Lueneburg, Germany Zone 7
    • View Profile
Re: US-802 citrumelo
« Reply #1 on: August 10, 2023, 05:29:44 PM »
looking at these pictures I had the idea it might be a polyploid.
https://idtools.org/citrus_id/index.cfm?packageID=1179&entityID=8884
I have a polyploid citrumelo chance seedling that grows like crazy. Even in my climate.

Anyway, if 802 is from Siamese Sweet, it sounds interesting for breeding. But I rather suspect that it is a standard Siamese offspring (but that's just an idea I had when I read about it on the internet).

Probably hard to get? or can you order it from UCR?

Perplexed

  • Member
  • ***
  • Posts: 227
    • 8a GA
    • View Profile
Re: US-802 citrumelo
« Reply #2 on: August 29, 2023, 01:03:31 AM »
Hard to get, not listed as available from UCR. I have a tree I bought from a nursery that is actually using this as the rootstock, but the tree is a Trifoliate+Satsuma. Not gonna decapitate it for US 802.

caladri

  • Member
  • ***
  • Posts: 147
    • Canada, British Columbia, Salt Spring Island, USDA 8b/9a
    • View Profile
Re: US-802 citrumelo
« Reply #3 on: August 29, 2023, 03:27:15 AM »
No viable buds on the rootstock which you could bud onto something else?

a_Vivaldi

  • Member
  • ***
  • Posts: 144
    • Greenville, NC, Z8a
    • View Profile
Re: US-802 citrumelo
« Reply #4 on: April 10, 2024, 10:15:52 PM »
Perplexed, I have a satsuma from the same nursery I suspect, as it's on US-802. This spring the rootstock put out two strong suckers. I'm either going to let them grow and fruit, or take material and graft that into something else. Either way, I'm thinking I'll have some US-802 fruit to test in a few years.

caladri

  • Member
  • ***
  • Posts: 147
    • Canada, British Columbia, Salt Spring Island, USDA 8b/9a
    • View Profile
Re: US-802 citrumelo
« Reply #5 on: April 10, 2024, 10:45:27 PM »
CCPP has US-802 as VI 1499, and should have budwood available at some point in the not-too-distant future, albeit not available for ordering as-yet.

a_Vivaldi

  • Member
  • ***
  • Posts: 144
    • Greenville, NC, Z8a
    • View Profile
Re: US-802 citrumelo
« Reply #6 on: August 25, 2024, 10:47:13 AM »
The pumelo parent on this one sure comes through in terms of growth habit and vigor. Last year I put in a satsuma on a US-802 rootstock. This year, given that this is a fairly unknown trifoliate hybrid as far as fruit and seed are concerned, I decided to let two suckers grow. One I grafted ichang papeda to, the other I let grow.

It grew.

Can I say, waterspout?


I tipped it right at 6 ft to encourage branching.


The four branches were initially well shaped, but have started leaning a lot more than I'd like. Still, 20 in. ain't bad on something that already shot up 6 ft in one summer. And it's still just August, so I can expect a bit more growth I think (I really hope I get some more stem thickening, trying to be really hands off with the support and just use the bar minimum to ensure I don't lose the whole thing to some wind or snow).


The crotch section looked really weak for the first few months, but it's thickened up a lot since and I think it'll be alright. Crazy to think that the big ol' green thing, now the thickest of the plant's three trunks, didn't even exist six months ago.


The locals carefully guarding it.


Ichang papeda graft looking happy.


The satsuma probably feels like there's been an invasion of privacy. Despite that, it's managed to grow a bit itself and has held onto its first fruit.
« Last Edit: August 25, 2024, 11:03:41 AM by a_Vivaldi »

 

SMF spam blocked by CleanTalk