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Messages - mikkel

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Cold Hardy Citrus / Re: Poncirus Seedlings
« on: September 20, 2022, 06:21:08 PM »
Yes, some are still there. They were planted in my garden 2 or maybe 3 years ago. They survived the cold winter of 20/21 but suffered from the milder winter of 21/22 this season most of them died.

Cold Hardy Citrus / Re: Trifoliate orange
« on: September 20, 2022, 01:29:16 AM »

Pedigree of some HLB tolerant Citrus varieties.

Ambersweet x US119 is FF 1-74-14
I am not sure if it is already released

Cold Hardy Citrus / Re: Trifoliate orange
« on: September 19, 2022, 02:55:41 PM »
Sanford Curafora has a late season and often bears dry fruit. This might vary in different climates.

Cold Hardy Citrus / Re: Trifoliate orange
« on: September 19, 2022, 02:49:28 PM »
SunDragon descends from Poncirus, is tolerant to HLB while producing good fruit.

Cold Hardy Citrus / Re: Kumquat x Poncirus
« on: September 15, 2022, 04:33:05 PM »
interesting! keep us updated.

Citrus General Discussion / Re: SunDragon
« on: September 04, 2022, 04:16:15 AM »
Are there any nurseries already selling SunDragon and Sherman? I could not find any.

Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: August 28, 2022, 03:53:57 PM »
There is a lot of information here. You can read a little in older posts.
Many citrus plants are nucellar and thus simple clones of the parent tree, but there are also many varieties that are zygotic. However, nucellar trees will also produce some zygotic offspring.
For nucellar varieties, it depends on the number of seedlings to find the zygotic offspring

Cold Hardy Citrus / Re: Ten Degree Tangerine - Clemyuz 2-2
« on: July 09, 2022, 06:52:12 AM »
Only in my greenhouse.... i haven`t tested it in open ground.

I also have pots that are not filled to the top with soil, but I have never noticed that the roots do not grow through to the bottom. On the contrary, the roots are usually most massive at the bottom.

Cold Hardy Citrus / Re: My citrus collection [EU - Antwerp]
« on: July 04, 2022, 04:03:40 PM »

Cold Hardy Citrus / Re: My citrus collection [EU - Antwerp]
« on: July 04, 2022, 08:54:20 AM »
I am also wondering about the safety of getting Kabosu from Adavo, don't want plants with the HLB virus. I know Lenzi had his Sudachi tested.

you mean CTV not HLB :)

Cold Hardy Citrus / Re: Kumquat x Poncirus
« on: July 01, 2022, 12:07:45 PM »
I will pollinate both and see what comes out.... but it might take a while before the first fruits appear.

Could be a type of virus. It is difficult to distinguish between the different types of viruses, as the same one can look different on different varieties
Heat could have caused the symptoms as it breaks out more easily when the plant is under stress.

Cold Hardy Citrus / Re: Kumquat x Poncirus
« on: June 30, 2022, 09:16:48 PM »
Finally I got both hindsii types. The thornless one and the one with thorns.
It remains to find out which is the diploid type.

Citrus General Discussion / Re: Fukushu vs. Meiwa
« on: June 20, 2022, 10:48:38 AM »
I don`t know Fukushu but I ate Meiwa once. For my taste it is a really good one. You can eat it as whole. It much better than Nagami no need to say.

Cold Hardy Citrus / Re: F2 Citrus glauca
« on: June 20, 2022, 04:25:30 AM »
You're right, I didn't read about the hybrid origin. But still the seedlings look very similar to my australasica seedlings.... If that means something I don't know... it's just an observation

Cold Hardy Citrus / Re: F2 Citrus glauca
« on: June 19, 2022, 06:10:15 PM »
If I add my 5 cents.... I also do not think it is glauca. glauca should have different leaves.
Yours look similar to my Blood Lime


Cold Hardy Citrus / Re: Kumquat x Poncirus
« on: June 15, 2022, 03:46:55 PM »
I was talking to Bernhard Voss. He said the one with thorns is the diploid one. the tetraploid one has no thorns. At least one of these should be the diploid one.

Cold Hardy Citrus / Re: Kumquat x Poncirus
« on: June 12, 2022, 05:12:37 PM »
What made you think it is diploid? I was thinking about it too, but Lenzi told me he has no clue what is the caes with these both...
I found similiar types (which might be the same, who knows? ) via a friend in a small nursery. I keep collecting hindsiis :)

Cold Hardy Citrus / Re: Kumquat x Poncirus
« on: June 06, 2022, 04:28:26 PM »
I like Meiwa. I wonder if the skin on a Meiwa/poncirus hybrid will taste nice. Or it might taste like poncirus. Wont know til ya pop it in your mouth and chew it up!

Meiwa is the most valuable kumquat in my eyes. It is very tasty, much better than the varieties from the supermarket.
But Meiwa is supposed to be strongly nucellar. Since Poncirus is often too nucellar, it would be quite a challenge to produce hybrids. But it should work with a large number of seedlings....

Cold Hardy Citrus / Re: Kumquat x Poncirus
« on: June 06, 2022, 04:22:27 PM »
The big disadvantage of hindsii is that probably only the tetraploid version is available. At least I have not seen the diploid version yet. But this would inevitably lead to triploid offspring. Only in rare cases can triploids produce seed. I believe procimquat is such a case (but I'm not sure if my memory is correct)
Also other kumquat types are supposed to be early flowering, maybe other types are suitable?
@Marcin I have different hindsii from different sources. If you are interested I will send you some budwood.

@Till backcrossing with kumquat would also have to include selection against such strong dormancy. But in Marcin's case, he is in a more continental climate with warmer summers than our climate. That might be less of a problem for him?
But the disadvantage is indeed that large quantities of seedlings are needed to select for these traits. And that, as always, is a problem.
Backcrossing with Poncirus is disadvantageous in my eyes because Poncirus is already sufficiently winter hardy, but the backcrosses are very unlikely to have improved fruit (it is still not impossible of course) a backcross with Kumquat would first improve fruit quality. With simultaneous strong selection for winter hardiness.
In theority, backcrossing the hardy BC1 hybrids would then have to be done again with kumquat, until winter hardiness and other traits are transferred.
I think this is at least one way, but not the only one.... for time reasons alone, I would go both ways. And it is theory, there may well be other ways.

Cold Hardy Citrus / Re: Kumquat x Poncirus
« on: June 03, 2022, 04:39:41 PM »
I think the advantage of backcrossing to kumquat is to improve the fruit while reinforcing the good winter dormancy....
For winter hardiness, of course, it would need a strong selection from many seedlings. Most of them will not be hardy enough... So far the theory :)
The practical side is that they must first mature and form fruit.
I could imagine that a foil greenhouse could already work well with you, the summers with you are warmer than here and a foil greenhouse could push them properly. Just as @kumin has done. He has already had some flowering trees after 3 years that way.
I also dream of a garden in the south where I can raise the seedlings until they bloom.... or a cooperation with someone in the south..

Citrus General Discussion / Re: Karasu Papeda
« on: June 03, 2022, 10:54:12 AM »
I have got new pictures

longispina has no petioles. excelsa does not fit at first glance either.

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