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Messages - Ilya11

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1
Citrus General Discussion / Re: ID this Mystery Citrus fruit
« on: September 16, 2020, 04:12:15 AM »
Could be just citrus mite infestation during flowering

2
Cold Hardy Citrus / Re: kishu mandarin x poncirus?
« on: September 12, 2020, 04:12:34 AM »
Satsumas are highly nucellar and their flowers are rarely contain pollen.

3
Cold Hardy Citrus / Re: kishu mandarin x poncirus?
« on: September 11, 2020, 12:30:39 PM »
Ilya11, tell us about Southern Yellow.  I have never heard of it, and I'm sure many on this forum, if not most, have never heard of it.  Is it a mandarin?  I typed "Southern Yellow" on the Internet but found nothing.
Millet, it is a kind of seedless sweet pomelo.
Here some pictures of it

4
Cold Hardy Citrus / Re: kishu mandarin x poncirus?
« on: September 11, 2020, 04:05:31 AM »
Seedless Kishu (Mukaku kishu) is completely seedless due to the abortion of all embryos early in development, but the pollen is fertile and several valuable hybrids were produced in Japan, including Southern Yellow that inherited seedlessness. This could be a problem in your project, since you will probably need subsequent crosses to other varieties to achieve some degree  of sweetness and will be obliged to use only pollen.

6
Cold Hardy Citrus / Re: Poncirus winter protection
« on: September 06, 2020, 08:54:34 AM »
I am in zone 6a. I have a Poncirus trifoilata that I planted in ground this spring. It is about 3 feet tall. Do I need to provide winter protection? If so, would I need to include a heater?
I guess  6a is at the limit of a long time survival of poncirus.
Since you have a long period of frozen ground, avoid winter sun, put some mulch around the stem.
Ideally,a passive heat protection like a box of styrofoam will help, I do not think that you need active heating.

7
Cold Hardy Citrus / Re: Poncirus fruit comparison
« on: September 01, 2020, 01:02:11 PM »
Jiri, a presence of underdeveloped seeds is probably a good sign of zygotic nature of this variety.
Have you also tried to germinated them? In some cases, liberated from testa they are able to give seedlings.

8
Cold Hardy Citrus / Re: N1triVoss
« on: July 20, 2020, 04:49:12 PM »
Just above the first pair of true leaves.

9
Cold Hardy Citrus / Re: N1triVoss
« on: July 20, 2020, 09:34:17 AM »
This grapefruit-like early flowering on the top of stem growth occurs often in N1tri seedlings.
It is one of the reasons why I believe  that this variety is a a hybrid of ichangensis  with some sort of citrumelo.
These flowers are giving very rarely fruits because the whole plant at this  stage  is rather weak.
But if you cut them near the ground, there is a chance that new emerging  growths  will flower on the tops next spring.

10
Citrus General Discussion / Re: Removable of Orange bitterness
« on: July 12, 2020, 11:31:07 AM »
I guess first of all  you should use only  "untreated after harvest " oranges, since most of Spanish citruses contain fungicides in their peel.
By  boiling pith with baking soda you can remove the bitterness even from poncirus peel.
http://www.eattheweeds.com/?s=Sour+orange
Also: http://tropicalfruitforum.com/index.php?topic=35316.0

11
Cold Hardy Citrus / Re: Cold hardiness of bergamot?
« on: July 06, 2020, 05:52:20 PM »
The origin of bergamot is still not exactly known, but the latest data point to C. limon  C. aurantium backcross.
I never tested it in a open ground, but according to experience in the South of France it is resistant up to -8C(18F)

12
Citrus General Discussion / Re: Quadrifoliate poncirus
« on: June 09, 2020, 04:38:06 AM »

13
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: May 19, 2020, 11:36:54 AM »
You will do it alone?

14
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: May 17, 2020, 11:13:58 AM »
Around 500 seedlings to be grafted?

15
My wife spotted this while I have my saw on that trunk.   
From my experience this is the best way how to convince citrus seedlings to flower ;D

16
Citrus General Discussion / Re: Multigrafting question
« on: May 12, 2020, 04:33:24 AM »
Probably a photo of your plant will help to answer. Also, if you want to graft several varieties you better chose them with same vigor to avoid the disequilibrated growth.

17
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: May 04, 2020, 02:59:11 AM »
For me the main problem is very mild winters that we experience recently. I am overwhelmed with hybrid seedlings so this season decided to experience with artificial freezing. For the moment have some encouraging results of freezing two month old hardened seedlings at -8C for two hours, approximately 20% of them survive, some without any damage.

18
Cold Hardy Citrus / Re: NYC Citrus
« on: April 30, 2020, 09:13:45 AM »
Thank you, these leaves look exactly the same as those of my Dunstan. I was asking this question because it seems there exist several varieties with this name.

19
Cold Hardy Citrus / Re: NYC Citrus
« on: April 30, 2020, 04:26:44 AM »
Ilya11, do your Dunstan flowers have citrus fragrance?

Yes, it is very fragrant, for me its smell is closer to pomelo  than that of grapefruit.
I posted recently on a French forum  a comparison of fruit taste of 5star and Dunstan.
Do you have a photo of the leaves of your Dunstan?

20
Cold Hardy Citrus / Re: NYC Citrus
« on: April 29, 2020, 05:29:06 PM »
Pomelo flowers are smaller.

21
Cold Hardy Citrus / Re: NYC Citrus
« on: April 29, 2020, 04:40:48 AM »
Citradia, are your Dunstan looks like this?


I am surprised how large are its flowers
It is  the second time flowering of the plant that was grown  for 10 years from US seeds.

22
Cold Hardy Citrus / Re: Pinkish Purple flower buds
« on: April 08, 2020, 04:20:13 AM »
After several years, a cross between Miho and Poncirus is about to bloom.  The pinkish purple color is slightly more intense than shown, and the smallest buds have more color.  I have only seen this color on lemons and limes before. 
Interesting, I wonder if Miho was a mother plant?
It seems that this hybrid is unifolate that is very unusual for F1 hybrids with poncirus.

23
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: April 01, 2020, 03:32:11 AM »
Small seeds  even in partially zygotic varieties are enriched in spontaneous triploids

24
Citrus General Discussion / Re: Shiikuwasha
« on: March 31, 2020, 03:26:58 AM »
Other crosses today
C junos x C keraji
C keraji x C depressa
C latifolia x C junos

Soon C unshiu x C junos
Probably all these crosses were realized many times in Japan.

25
Citrus General Discussion / Re: What is flowering now for you?
« on: March 26, 2020, 03:59:53 PM »
I do not have any problems with cold sensitivities of poncirus here. It is completely hardy in Paris region with the presence of very old trees in the gardens.

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