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Messages - Florian

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1
Cold Hardy Citrus / Clementine Oronules × Citrus ichangensis IVIA
« on: January 24, 2025, 07:46:57 AM »
I attempted this cross last year and my usually seedless Oronules gave me a handful of fruits with seeds. I sowed them in November and they took forever to germinate but some are finally popping now. Of course, I don't know if they are truly hybrids but I think there is a good chance.

I plan to document their development here.





2
Cold Hardy Citrus / Re: Citrangor 43728 - INIA Uruguay
« on: January 18, 2025, 03:33:52 PM »
I have been to Uruguay twice but I have never heard of INIA. Is there anything special about Citrangor 43728?

3
Cold Hardy Citrus / Re: First fruits of Citrangeremo
« on: December 10, 2024, 07:55:28 AM »
A dumb question maybe but will drought tolerance and tolerance to salinity etc. even be expressed in grafted plants or to what extent? Or will it just have the characteristics of the rootstock in that respect?

4
Cold Hardy Citrus / Re: Staraji fruits
« on: December 10, 2024, 07:51:07 AM »
Thanks for the photos and your description, Till.

5
Cold Hardy Citrus / Re: First fruits of Citrangeremo
« on: December 09, 2024, 10:03:43 AM »
Quote from: Till on December 08, 2024, 03:07:36 PM
Florian, I will help my Citrangeremo to grow and fruit better next year. I shall take some more years for the final evaluation. But you perhaps do better when you start with E. glauca and produce your own hybrids. It may well be that they bloom before your Citrangeremo.
I have already Changsha x E. glauca (two small seedlings, perhaps also a third one).

I might just do that but I haven't even got a C. glauca yet. The Changsha x glauca sounds interesting. I'd be a taker if you are looking for people to trial it;-).
I have also put a glauca x shekwasha in the ground this year and at least this one flowers like crazy. However, only a few smallish fruits with no pulp so far.

6
Cold Hardy Citrus / Re: First fruits of Citrangeremo
« on: December 08, 2024, 02:47:39 PM »
I have not had fruits (not even flowers) and your report just might be the final nail in the coffin for it. While it has been coldhardy, I don't have space to waste for something mediocre.

7
Cold Hardy Citrus / Re: Sour Orange cold hardiness
« on: December 04, 2024, 09:46:59 AM »
I had a Yuzu that was grafted on sour orange and it died in its first winter after only -8C. None of my other citrus (grafted on Poncirus and Citrumelo) showed damages that winter.

8
Cold Hardy Citrus / Re: Percentage of zygosity HRS899
« on: November 25, 2024, 02:30:34 AM »
I have the one from Citrus BaLi. In contrast to what Robert states, it flowers profusely but mine has never set fruit. They always drop at pea size or earlier.

9
Cold Hardy Citrus / Re: Deciduous hybrids
« on: October 30, 2024, 05:28:51 PM »
My Hamlin x flying dragon is deciduous too.

10
Cold Hardy Citrus / Re: My citrus collection [EU - Antwerp]
« on: October 27, 2024, 07:17:15 PM »
Quote from: Ilya11 on October 27, 2024, 05:43:19 PM
Probably  residues of rapeseed oil insecticide.
The fruit on the photo does not look like an IVIA ichangensis.



While my fruits usually look like yours, I have had a round fruit with smooth skin like Peep's too.
 


11
Cold Hardy Citrus / Re: Different yuzu selections
« on: October 08, 2024, 02:39:32 AM »
Quote from: Skandiberg on October 06, 2024, 03:40:26 PM
Thank you Florian!

That's exactly the kind of information I am after. Especially because I have never heard of Yamane before. So I am googling it roght away. Thanks again.

Just a caveat: Yuzu Yamane is often described as having smaller fruit. My first (and so far only) one was, as mentioned, pretty big. So, I am uncertain if it really is a "Yamane". Perhaps, following fruits will be smaller. But it is still a great, hardy Yuzu.

Also, I only planted mine this year and thus will test its hardiness on my own the coming winter. My friend's plant survived -15C-ish with no twig dieback but lost many leaves.

12
Cold Hardy Citrus / Re: Different yuzu selections
« on: October 06, 2024, 02:38:56 PM »
A friend and I have a Yuzu "Yamane" (both bought from Eisenhut nursery) which seems to be quite tough and my first fruit was pretty big (133g). The taste was excellent. My friend lives in a colder place than I and he says the Yamane is more coldhardy than his standard (no name) Yuzu.

13
Citrus General Discussion / Re: Kishu
« on: September 23, 2024, 05:14:29 AM »
While I can't answer your question about female sterility, there are several Kishu varieties and only some are seedless, for example mukakukishu (often just called seedless Kishu).
I only have a plant from Adavo and it is not seedless.

14
Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: August 19, 2024, 09:01:41 AM »
Quote from: Skandiberg on August 12, 2024, 11:36:20 AM
Quote from: Florian on June 13, 2024, 06:09:13 PM
On top of not being very coldhardy, the fruit of US119 always split open before maturity where I live and many people report the same. It is a useless plant for me but others seem to have some success.

I have two ichangensis x Poncirus x Satsuma from Eisenhut (Nr. 416 in their catalogue. They list several accessions). I find it a very attractive plant with lush, dense foliage.
My original plant was one of Eisenhut's mother plants that he only reluctantly sold to me because he didn't have any smaller plants at that time^^. Then I grafted one myself onto a Poncirus rootstock because I didn't see any graft union on the other plant. I planted the grafted one out in 2022 and the other one yesterday.
Both of them flowered for the first time last year but no fruit yet. There are a few flowers on each this year as well but after a very cold and wet spring, they are lagging behind.







Picture from the 19th of May. It is in my grandma's garden.


Hi Florian,

Did the plants produce any fruit out of those flowers?

Unfortunately, all fruitlets were dropped at a very early stage of development. They did not reach pea size.

15
Citrus General Discussion / Re: Starburst and Cocktail seedlings
« on: August 11, 2024, 03:49:04 PM »
Quote from: Ilya11 on July 31, 2024, 10:45:50 AM
Thank you, in France most  pomelos are from China , they appear on the market in early November.
The white flesh variety is labeled Honey, but sometime there are also deep red fruits.
Rarely in white flesh fruits are large seeds, its seedlings  are very sensitive to the frost.
In November  2022 I found a dozen of seeds in the red one and got several seedlings with varying leave shape pattern.





Most of them died after forced  artificial freezing at 8°C for 3 hours but one was not damaged at all.





Probably a hybrid with some hardy rootstock


I also sowed seeds of a (white) Honey Pomelo some time ago and last winter, I left the seedlings outside. All but one died. The surviving seedling however, almost died of neglect when I failed to water it. It has recovered and I am curious to find out what will be of it.

16
Cold Hardy Citrus / Re: My citrus collection [EU - Antwerp]
« on: July 20, 2024, 04:28:58 PM »
Quote from: Ilya11 on July 19, 2024, 03:53:32 AM
Quote from: Peep on July 17, 2024, 11:56:53 AM

- My Ichang Papeda IVIA has one fruit, it actually arrived like this from the nursery two weeks ago. Small plant from Agrumi Lenzi.



Usually fruits of IVIA358 are different in shape


Also, its leaves are mostly wrinkled




I made two grafts on flying dragon with budwood from the same tree. One of those plants produced a single round fruit in 2020 while the other has always made flattened, furrowed fruits. They are genetically identical and on the same rootstock, same potting mix, same care. But I agree that the leaves should be wrinkled.



17
Cold Hardy Citrus / Re: My citrus collection [EU - Antwerp]
« on: July 18, 2024, 12:47:49 PM »
Quote from: Peep on July 17, 2024, 12:53:45 PM
Does anyone know if the IVIA fruit in my picture is normal? Or if it should be more corrugated/furrowed?

Like this picture from Eisenhut:


I believe there exist two Ichang Papeda cultivars that are labeled as IVIA.

Most of my fruits are like the one in this picture but rounder ones with smoother skin do occur.

18
Citrus General Discussion / Re: For larger Citrus Fruit
« on: July 11, 2024, 01:59:26 PM »
Quote from: Millet on July 11, 2024, 12:50:41 PM
Urea fertilizers that  are high in biuret can cause leaf burn.  if your urea does not show a biuret content you could spray a small portion of leaves and see if there is any  leaf burning affect.  If not then the biuret content in the product will be OK.

Fantastic advice, thanks a million.

19
Citrus General Discussion / Re: For larger Citrus Fruit
« on: July 11, 2024, 03:17:31 AM »
I can find urea here but it never says anything about low biuret (or biuret at all). Is it vital that it is low biuret (as opposed to high? or none at all?).

20
Cold Hardy Citrus / Re: US 812
« on: July 01, 2024, 09:40:37 AM »
Quote from: Ilya11 on July 01, 2024, 03:57:07 AM
Quote from: tedburn on June 29, 2024, 01:51:27 PM

Hello Ilya,
interesting, whats about fruit size and fruit taste - are they
edible with good taste and when are they mature ?

My experience is similar to that of Zitrusgaertner.
Fruits are ripe in the first half of December, small (~10g), their taste is close to that of calamondin.




That does sound promising. I am looking forward to seeing my plant grow and mature (Robert gave me budwood last year).

21
Cold Hardy Citrus / Re: US 812
« on: June 27, 2024, 07:36:10 AM »
Quote from: Skandiberg on June 26, 2024, 02:21:30 PM
Hi,

If it does well in Vienna without protection for 10 years, it would probably do well for me. However I am unsure which one to choose. I began to lean to Bishop citrandarin and now you come up with these good news. Is there anyone who grows them both? Their cold tolerance is more or less the same but how about their taste?

I don't have it but if Bishop is anything like its parent US 852, it will ripen later than 812, possibly too late for some climates.

22
Cold Hardy Citrus / Re: Do you have a picture of a large prague citsuma plant?
« on: June 19, 2024, 04:39:17 AM »
Quote from: Sylvain on June 19, 2024, 04:01:49 AM
> Do you have a picture of a large prague citsuma plant?
Yes, 5 meters high.
http://pafranceparamoteur.free.fr/datas/perso/Agrumes/Prague/20240617_144223.jpg

From the top:
http://pafranceparamoteur.free.fr/datas/perso/Agrumes/Prague/20240617_144523.jpg

How much fruit does your plant give you on average each year, Sylvain? And do you think pollen from another plant could improve fruit set, as Wahl suggests?

23
Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: June 13, 2024, 06:09:13 PM »
On top of not being very coldhardy, the fruit of US119 always split open before maturity where I live and many people report the same. It is a useless plant for me but others seem to have some success.

I have two ichangensis x Poncirus x Satsuma from Eisenhut (Nr. 416 in their catalogue. They list several accessions). I find it a very attractive plant with lush, dense foliage.
My original plant was one of Eisenhut's mother plants that he only reluctantly sold to me because he didn't have any smaller plants at that time^^. Then I grafted one myself onto a Poncirus rootstock because I didn't see any graft union on the other plant. I planted the grafted one out in 2022 and the other one yesterday.
Both of them flowered for the first time last year but no fruit yet. There are a few flowers on each this year as well but after a very cold and wet spring, they are lagging behind.







Picture from the 19th of May. It is in my grandma's garden.


24
Cold Hardy Citrus / Re: Is there a potential in a Prague citsuma orchard in temperate climate?
« on: May 16, 2024, 04:04:43 PM »
Quote from: vnomonee on May 16, 2024, 11:13:03 AM
Florian, have you harvested the fruit in the green stage? Is it edible? Some early Satsumas I've seen can be harvested green like Xie Shan and still be edible.

Here is another example, this forum user in 7b harvested her fruit around Thanksgiving (November). She is in Maryland, around 3 hours south from me in NJ 

https://www.houzz.com/discussions/6324288/prague-citsuma-update-finally-got-fruit-in-md

No, I haven't. But I must admit that I have only had fruit on my in-ground plant twice. Before that, I had trouble getting it to fruit at all. I will certainly try harvesting them green this year. However, according to Wikipedia, Annapolis still has a much higher annual mean temperature (14.3 C) compared to Solothurn (10 C).

25
Cold Hardy Citrus / Re: Is there a potential in a Prague citsuma orchard in temperate climate?
« on: May 16, 2024, 10:00:20 AM »
Quote from: vnomonee on May 15, 2024, 06:24:05 PM
I saw a post on Facebook where Stan has shipped fruit in November to someone to try it, so it depends when the flowers set the fruit

Quote from: poncirsguy on May 15, 2024, 02:21:36 PM
In zone 8a the fruits will be destroyed by first frost before they are ripe.

Stan is a month or more ahead of us in spring and then autumn comes much earlier here. I have thus the same problem as poncirsguy. The plant is fully hardy but the first severe freeze gets the fruits.

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