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Messages - Zitrusgaertner

Pages: [1] 2
1
Cold Hardy Citrus / Re: Accuracy of cold hardiness temperatures?
« on: February 23, 2018, 03:14:10 PM »
Thank you, Ilya. But monoembryonic seedlings does not necessarily mean aswell zygotic. Monoembryonic seed might aswell be nucellar too. As far as I know.

RR

2
Cold Hardy Citrus / Re: Accuracy of cold hardiness temperatures?
« on: February 23, 2018, 07:05:27 AM »
Ilya wrote,
"It is very common for the young seedlings of PT to keep green  leaves over the winter.
Moreover, in poncirus  nucellar seed formation  is not obligate. It depends on the season and variety, many of  seedlings are zygotic, giving plants different from the mother."

I am bewildered about this statement. How could PT build up a stable and quite homogenous population if there were a lot of zygotic upcome? I recently read in a scientific report that PT is likely to be an intergeneric hybrid not a genus of its own. That is why I assumed apomixis was the reason of its stability. Maybe I am totally wrong.

Regards Robert

3
Radoslav, is it available in Europe?

4
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 18, 2018, 11:52:57 AM »
Potted Ichang papeda IVIA. Of same age as outdoor in ground specimen.







5
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 18, 2018, 11:40:23 AM »
Some better pictures (hope so) of my outdoor Ichang papeda IVIA.

 





6
Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: February 17, 2018, 03:48:18 PM »
Mikkel, don't you have a friend in the US who could order and send on the seeds to you?

7
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 16, 2018, 03:32:31 PM »
I suppose yo are right, Citradia. Obviously this hybrid is hardy enough for my climate that's the point.

8
Cold Hardy Citrus / Re: Anyone know any sources of N1tri citrus?
« on: February 16, 2018, 11:14:24 AM »
Reto Eisenhut is in Switzerland near Locarno. The best source for citrus in Europe and he is shipping plants to EU-countries as far as I know.

9
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 16, 2018, 10:43:40 AM »
Citradia, interesting that ohne of your Papedas does not have winged petioles. If you take a close look at my (verx bad) picture you can see that there are no wings on the quite big leaves on the upright (highest) twig. The youngest leaves are much bigger than older foliage and they do not have winged petioles and there are no thorns. Very unusual for Ichang papeda, I suppose.

10
Cold Hardy Citrus / Re: Swamp Lemon Adventure!
« on: February 15, 2018, 09:41:14 AM »
But is Nikita really identic with Swamp Lemon?

Best Regards
Robert

11
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 15, 2018, 09:35:52 AM »
Ilya, the flower was not very big. But it was its first flower ever and there was only one flower on my potted tree. The one in ground has much bigger leaves and maybe will have bigger flowers. In fact it is very interesting that C ichangensis from seed is that heterogenous. Every single grain should be grown!  :D

12
Cold Hardy Citrus / Re: Cold Hardry Grapefuit/Pommelos
« on: February 15, 2018, 08:43:26 AM »
Ilya, compared to Enzo and Welker is Bloomsweet as hardy or less? And fruit quality is comparable or not?

13
Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: February 15, 2018, 08:31:36 AM »
Mikkel

There is an old proverb saying: He who asks a lot of people will loose his direction (auf Deutsch: Wer lang fragt, geht weit irr). Sending citrus seed to a private person will not bring you in jail. And deseases are not transferred via seed as far as I know.

14
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 15, 2018, 08:20:23 AM »
Mikkel wrote: Are fruits of your I.P. IVIA like other I.P. IVIAs?  Are they consumable?

I did not yet have fruits on this plant. One tiny fruit appeared on my potted IVIA (which is a bit different) but fell off. It resembled an IVIA-fruit. which reminds me of Melarosa Lemon.

15
Cold Hardy Citrus / Re: Swamp Lemon Adventure!
« on: February 15, 2018, 08:14:03 AM »
Really? Is it available? Or might "Nikita" be identical with Poncirus+ Ilya told us of?

16
Cold Hardy Citrus / Re: Citsuma Prague
« on: February 15, 2018, 08:07:36 AM »
This is the right picture. The best I have. You can see two Poncirus-Fruits on it, but it is "Prague" ;) By the way I have cut away the offspring and grafted it on a PT-seedling. It flowers but always throws away its fruits. But they are PT -no hope of anything else.

17
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 15, 2018, 07:58:20 AM »
As you might see the twigs on top (they are the youngest) do not have thorns. I guess they will flower this year. As I mentioned the flush is red.

18
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 15, 2018, 07:54:36 AM »
This is my bad picture

19
Cold Hardy Citrus / Re: Swamp Lemon Adventure!
« on: February 15, 2018, 07:50:03 AM »
Sylvain, cold hardy would be great news! Not bitter and hardy could be the beginning of new ages of hybriding for cold hardy citrus.

20
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 13, 2018, 03:40:14 PM »
Mikkel yes, but I should make a better one. Young leaves are red or reddish. Very interesting is, that mature branches seem to be thornless. At least on the one Ichang papeda in ground. The other one potted has spines. It has flowered 2017 the first time.

21
Cold Hardy Citrus / Re: Citsuma Prague
« on: February 13, 2018, 03:31:03 PM »
I'm glad to meet you all again.  ;D

22
Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: February 13, 2018, 08:01:22 AM »
Millet,
but it should be possible to send seed from Europe, or not? The other way it was no problem. USDA sent me a lot of seeds years ago. Without charging anything very nice!

23
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 13, 2018, 07:13:15 AM »
Thank you! I knew they don't come true, but my second plant which bloomed already produced a tiny fruit (that fell off) and the shape was very IVIA-like (so to say) But -to be true- the two plants differ a little bit. Let's see. In any case the one in my garden is quite hardy. It took -15 without protection as a young plant. Now it is more than 1m high and new branches miss any spines. That is strange and does not match with the potted tree.

24
Cold Hardy Citrus / Re: Citsuma Prague
« on: February 13, 2018, 06:58:37 AM »
Sylvain wrote:
"It was from Petr Broza. At this time (2008/2009) we were only three (with B. Voss who found it) to have it."

I had it aswell. Mine grows in open soil grafted on 1m Poncirus in my Viennese Garden. I reported about the "strange thing" in the US-forum which is now down. The motherplant shown there is still potted. The chimera is hardy at least down to -15C.
Sylvain, may I borrow the pics from you? I have a presentation about "strange things about citrus" in a few weeks.

25
Cold Hardy Citrus / Re: Swamp Lemon Adventure!
« on: February 13, 2018, 05:31:46 AM »
Hi Ilya, I read about the climate in the region where they have found swamp lemon. That's why my conclusion was -maybe less hardy than Poncirus. But hopefully I am wrong.

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