Tropical Fruit Forum - International Tropical Fruit Growers



Author Topic: Wanted: Temperate Eriobotrya species - East Asia  (Read 8883 times)

Patanax

  • Member
  • ***
  • Posts: 34
    • Austria, Zone 7a
    • View Profile
Re: Wanted: Temperate Eriobotrya species - East Asia
« Reply #50 on: June 19, 2020, 08:11:58 AM »
I may be able to get some seed of E. hookeriana - but not any time soon, probably next year. I'll also keep an eye out for any loquats growing at their Southern limit here.

Hello JSea,
that's great to hear :D
Are you visiting China or the Himalaya region or do you know a botanical garden in your area that has them?
Definitely keep us updated on the progress. If you're able to aquire seeds, I'd love to buy some from you :)

Is there a nursery in Spain which is offering Piera?

Sadly I haven't been able to find a nursery which offers Piera. As the variety is grown in Italy and Spain, I think reaching out to private collectors that are located there and that are growing named varieties would be the best bet.

I will post an update regarding my progress in the next few days.

JSea

  • Member
  • ***
  • Posts: 21
    • New Zealand, 9b
    • View Profile
Re: Wanted: Temperate Eriobotrya species - East Asia
« Reply #51 on: June 23, 2020, 06:18:26 PM »
Hello JSea,
that's great to hear :D
Are you visiting China or the Himalaya region or do you know a botanical garden in your area that has them?
Definitely keep us updated on the progress. If you're able to aquire seeds, I'd love to buy some from you :)

It's from a botanic garden quite a few hours away. I'm also close to the Southern limit of loquat growth here so will also keep an eye out for very tough trees dealing with hard frosts.

Patanax

  • Member
  • ***
  • Posts: 34
    • Austria, Zone 7a
    • View Profile
Re: Wanted: Temperate Eriobotrya species - East Asia
« Reply #52 on: June 26, 2020, 03:40:23 PM »
So here is the promised update :)

Considering that it will probably take a while before I can find a source for wild Eriobotrya species, I've been going through the previous papers and taking notes to get a better picture and to better know what to keep an eye out for. I've also found three new papers which are relevant for this project.

The first one highlights the close relationship between Eriobotrya and Rhaphiolepis, even suggesting that Eriobotrya should be nested within Rhaphiolepis.

Eriobotrya Belongs to Rhaphiolepis (Maleae, Rosaceae): Evidence From Chloroplast Genome and Nuclear Ribosomal DNA Data
https://www.frontiersin.org/articles/10.3389/fpls.2019.01731/full

The second paper seems to confirm this close relationship, as it describes artificial hybrids between Rhaphiolepis and Eriobotrya. After all, the "Coppertone" loquat is most likely also a hybrid between R. indica and E. deflexa.

Possibility of intergeneric hybrids between loquat (Eriobotrya japonica lindl.) and other Rosaceae plants:
https://agris.fao.org/agris-search/search.do?recordID=JP2008008365

The third paper is probably the most exciting, as it describes a technique which could enable new combinations when hybridizing different Eriobotrya species. Considering the number of recent Chinese papers that talk about hybridizing wild Eriobotrya species with E. japonica to shift the flowering time to spring, I truly believe that we will see a new generation of spring-flowering loquat cultivars in the coming years.

Cut-style Pollination Can Effectively Overcome Prefertilization Barriers of Distant Hybridization in Loquat
https://journals.ashs.org/hortsci/view/journals/hortsci/55/3/article-p287.xml

With these papers in mind, I've been looking at the different genera which are closely related to Eriobotrya. The most closely related genera according to several papers are Rhaphiolepis, Heteromeles, Photinia and Stranvaesia. I am currently collecting different promising species and varieties. So far I have:

Eriobotrya japonica (5x 8yo seedling trees)
Eriobotrya japonica 'Tanaka'
Eriobotrya deflexa (Small seedling)
Heteromeles arbutifolia
Photinia prionophylla
Photinia serratifolia 'Crunchy'
Photinia villosa var. maximowicziana
Photinia x dummeri 'Winchester'
Photinia x fraseri 'Faros Red'
Rhaphiolepis indica 'Spring Time'
Rhaphiolepis umbellata
xRhaphiobotrya 'Coppertone'

So far only R. indica and R. umbellata have flowered. I have saved pollen from both of them and will attempt to pollinate E. japonica flowers if my seedling trees or E. japonica "Tanaka" flower this year. I am also in contact with two people that have Eriobotrya species besides E. japonica/deflexa. I've asked them for seeds/plant material and will hopefully hear from them if their trees flower/fruit this year.

PS: A curiosity I came across ;)
https://www.ingentaconnect.com/contentone/botbel/plecevo/2014/00000147/00000001/art00012 (click download)
« Last Edit: October 15, 2020, 07:07:03 PM by Patanax »

mikkel

  • Sr. Member
  • ****
  • Posts: 316
    • Lueneburg, Germany Zone 7
    • View Profile
Re: Wanted: Temperate Eriobotrya species - East Asia
« Reply #53 on: July 28, 2020, 05:07:49 PM »
Found this one on another forum:
https://citrusgrowersv2.proboards.com/thread/126/christmas-loquat?page=1&scrollTo=952

it is Loquat "Christmas"

the owner says it flowers in spring


NateTheGreat

  • Member
  • ***
  • Posts: 191
    • SF Bay Area, 9B
    • View Profile
Re: Wanted: Temperate Eriobotrya species - East Asia
« Reply #54 on: July 31, 2020, 12:27:39 PM »
Found this one on another forum:
https://citrusgrowersv2.proboards.com/thread/126/christmas-loquat?page=1&scrollTo=952

it is Loquat "Christmas"

the owner says it flowers in spring
Maybe he is in the southern hemisphere.

mikkel

  • Sr. Member
  • ****
  • Posts: 316
    • Lueneburg, Germany Zone 7
    • View Profile
Re: Wanted: Temperate Eriobotrya species - East Asia
« Reply #55 on: July 31, 2020, 01:04:07 PM »
He is living in the eastern US

 

Copyright © Tropical Fruit Forum - International Tropical Fruit Growers