Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - Ilya11

Pages: [1] 2 3 ... 37
are Dunstan friuts better than 5 Star-fruits? And do you know #82 from Eisenhut aswell?

Best Regards

I have 82, but it has not flowered yet.
I am able to compare 5star and Dunstan because I have both of them on own roots growing close together. 5star was also harvested  last week but some of its fruits still had some green specks.

Fruit smells good but different from that of Dunstan. The proportion of juice is also less and you need more pressure  to extract it.

It is more sour, less bitter with 12°Brix. No poncirus aftertaste at this stage.
In the past I noticed that fruits of 5star can be kept for several months in the basement at ~12C and improuve their quality without drying. At the end of March there is almost no bitterness.
Fruits of Dunstan are drying more rapidly and start to rot by the Christmas time. I also noticed that 5star juice bitter taste is due to the presence of small pieces of  membranes, it can be totally eliminated by keeping  in refrigerator for  a few days. These pieces form a bitter bottom layer.

Here are my impressions as of today. I harvested this fruit one week ago when it was fully colored and easily detached from the branch.

Outside it has a pleasant fruity smell with no poncirus overtones.

Very juicy, bitterness is on the level of that of grapefruit, 10° Brix, acidity on the pair with lemon, some astringency but no inside oils, orange like scent, no poncirus aftertaste.
I do not know if your fruit was fully colored, from my experience the taste of poncirus hybrids greatly depends on the degree of ripeness.

My Dunstan fruits are very big.

Cold Hardy Citrus / Re: Citrus garden at 48.5N
« on: November 26, 2023, 03:35:05 AM »
Congratulation Ilya, wonderful pictures.
How do you rank the frosthardiness of Changsha ?
Did the fruit size and flesh amount of your crosses Ichangstar, ...
improve with the years ?
Regards Frank
Hello Frank,
I do not know for a long term, this plant has been in ground only for 4 years, no damage  yet, but lows were only -9.5 one winter.
I am a little bit disappointed by its rather late maturing, but may be it is because the tree is rather young.

Cold Hardy Citrus / Re: Citrus garden at 48.5N
« on: November 25, 2023, 03:52:18 PM »
An impressive harvest. How does sunki×pt taste? Have you estimated the percentage of its seeds' nucelarity?

It is awfully bitter.

Cold Hardy Citrus / Re: Citrus garden at 48.5N
« on: November 25, 2023, 03:51:05 PM »
Its sibling Ichangstar70 is the earliest

Cold Hardy Citrus / Re: Citrus garden at 48.5N
« on: November 25, 2023, 11:38:44 AM »
Great looking fruit, Illya. You're getting good results from your breeding efforts. Do you have an approximate count on the number of Citrus plants you have in total?
Thank you, I estimate around 300 hybrid seedlings at dense planting in this garden and probably around 400 in the South of France.

Cold Hardy Citrus / Citrus garden at 48.5N
« on: November 25, 2023, 03:55:02 AM »
Today night we got the first  ground frost, so I want to share some pictures showing the degree of ripiness.
All trees are in ground never protected.

Ichangstar60 have already dropped most of its fruits

SunkiXPT citrandarin


5star citrumelo

Dunstan citrumelo


Staruzu (5starXYuzu)

No, citrus fruits are not climacteric, they do not depend on the presence of ethylene for maturation.

Cold Hardy Citrus / Re: IchangensisXSinensis from B.Voss
« on: November 22, 2023, 02:13:18 PM »
Excellent pictures, Ilya. That is exactly what a hybrid ichangensis x sinensis should look like in my opinion. I am also convinced that the commonly available ichangensis x sinensis is just an orange.

How coldhardy is the Voss plant?
Florian, the plant has experienced only three winters, the lowest night temperature was -9.5C.
Not a slightest damage was observed.

Cold Hardy Citrus / Re: IchangensisXSinensis from B.Voss
« on: November 22, 2023, 02:09:59 PM »
There is an somatic hybrid (fusion of protoplasts) of Ichangensis X sinsensis and a normal cross IxS. The somatic hybrid resembles oranges very much.
Robert, I have some doubt that somatic hybrid described in 1993 Chinese paper is a variety available in Europe.
There are so many barriers for such a distribution.
My plant show no signs  of tetraploidy, its leaves have the same appearance as of common oranges, cold resistance is up to -9C for the short night freeze and the  taste is 100% orange.

Cold Hardy Citrus / IchangensisXSinensis from B.Voss
« on: November 22, 2023, 08:16:30 AM »
Three years ago Bernhardt Voss kindly sent me the budwood of this hybrid.
I grafted it  to PT root. It does look very different from another variety that has a similar  name  and is rather widely accessible in Europe. I  have it and by my opinion it is a pure early orange.

This year Bernhardt hybrid flowered for the first time, fruits were almost ripe in the beginning of  November.

Fruits have orange-like fragrance , juice is abundant, not bitter, acid like that of lemon, 10° Brix.

Albedo is astringent, slightly bitter

Many seeds covered by pectin.

Citrus General Discussion / Re: Kumquats seedlings dying
« on: November 19, 2023, 06:59:43 AM »
All roots are probably rotten

Cold Hardy Citrus / Re: PT-plusXValentine cross
« on: November 18, 2023, 02:29:57 PM »
They are just germinating.
PT-plus when fully ripe (can be detached easily) does not have internal oils and poncirus aftertaste.

Cold Hardy Citrus / Re: PT-plusXValentine cross
« on: November 17, 2023, 05:05:22 PM »
The seeds are germinated in zip locked packets in slightly moist  perlite at 30C. After root appearence they are transfered on the surface of substrate in covered pots.

Cold Hardy Citrus / Re: PT-plusXValentine cross
« on: November 17, 2023, 03:33:56 AM »
Great, Ilya!
I see everyone wanted to do the same 😊 I also got myself Valentino a couple of years ago, but it's still far from flowering. I believe Valentino gives zygotic seeds. I wonder why the reverse crossing failed? A large style? ;D
PT-plus cross also  was early failed ;)
It seems to me that generally crosses with poncirus are not easy to perform.
Valentine is abundantly flowering, but fruit set is quite limited, most fruitlets drop rapidly.

Cold Hardy Citrus / Re: PT-plusXValentine cross
« on: November 16, 2023, 05:30:53 PM »
Now that's an interesting cross.

I assume the motivation here for the larger, juicier fruit + red coloration. Pigmented pomelo is used rather than a blood orange because of better results from poncirus hybrids with pomelo rather than orange, yes?
Valentine is a very special variety with genes for two types of internal pigmentation and a gene for acidless feature.
At least in the case of combination with other cultivars of citrus it is able to diminish the acidity even when present in one copy.
I hope that this will be also a case in  poncirus hybrids.

Cold Hardy Citrus / PT-plusXValentine cross
« on: November 16, 2023, 12:28:08 PM »
Probably succeeded to have it.
It was done with castrated  PTP flowers pollinated by Valentine pummelo. I tried also another way, but failed.
This year was supposed to be the last to try any cross with PTP, previously the seedlings although different in vigor were rather uniform in the shape of leaves and overall look alike.
Now only one third of them (I am germinating 85 seeds) look like those of poncirus, the rest are clearly different.

Putative nucellar seedling to the right. Red arrows point to the tiny unfoliate alternate first leaves typical for pure poncirus seedlings.

Cold Hardy Citrus / Re: Seed development after picking
« on: November 16, 2023, 04:03:48 AM »
I have done this several time and found that seed maturation exist, but the fruit should reach a certain phase at the moment of harvest.  It is better to pick it when yellow color starts to appear.

Cold Hardy Citrus / Re: Ichang Papada Kaviar
« on: November 16, 2023, 03:58:53 AM »
Yes, but I guess the shape could be affected by juice content. Fingerlime vesicles are also much harder.

Cold Hardy Citrus / Re: Ichang Papada Kaviar
« on: November 15, 2023, 12:05:24 PM »
Sac vesicles of my  C.ichangensis IVIA358 fruit are elongated and are softer compare to those of fingerlime.

Cold Hardy Citrus / Re: First bloom of my citrumeloXichanagensis hybrids
« on: November 10, 2023, 06:06:46 PM »
Thank you. What was a source of your Dunstan?

Cold Hardy Citrus / Re: First bloom of my citrumeloXichanagensis hybrids
« on: November 10, 2023, 12:41:12 PM »
My Dunstan (from Andy Voss seed) is probably  100 % nucellar ( seedlings look like identical).
Till, the first leaves on the stem of your F1 seedlings, are they arranged in alternate ( like those of poncirus)  or opposite way?

Cold Hardy Citrus / Re: First bloom of my citrumeloXichanagensis hybrids
« on: November 09, 2023, 12:26:05 PM »
Keraji is probably the hardiest sweet mandarin. It can be grown at my place without protection, but once in three years has some leaf/twig damage.

I have a few dozens of survivals from 5starXKeraji cross out of ~100 zygotic seedlings. They are in ground since 2012 and were never damaged
Only two fruited up to now. Staraji 55 is the best in quality, another one- Staraji07 has small  sour fruits that also mature late  in the season.

This spring I made some crosses of Staraji55 with Dunstan and Morton in hope to increase the fruit size  and with Mapo and XieShan to introduce earlier maturity.

Cold Hardy Citrus / Re: First bloom of my citrumeloXichanagensis hybrids
« on: November 09, 2023, 03:18:13 AM »
Was 5 star or Keraji the female parent for that cross?


Pages: [1] 2 3 ... 37
SMF spam blocked by CleanTalk