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Messages - Ilya11

Pages: [1] 2 3 ... 8
1
Citrus General Discussion / Re: Hybrid Seedling Cotyledons
« on: February 19, 2018, 11:01:05 AM »
Sylvain,
Sometimes, when stems are not round, it is difficult to determine correctly a sense  of growth.
I looked today at last year 5* seedlings that were left after I separated really hybrid ones.
Majority are counterclockwise like 5*, but  I found  several seedlings  that are clockwise. Can not can be 100% sure that are all nucellar.
 Interestingly, I have a variant, clockwise 5* seedling from 2011, that has had  an amazingly rapid growth.
It is now approximately 4 tall, flowered last year and it seems its fruits are less acid than that of original 5*. 

2
Cold Hardy Citrus / Re: cold hardy Citrus for zone 7b?
« on: February 19, 2018, 04:08:04 AM »
Earlier satsumas like Miho Wase or Xie Shan will have a better chance to be ripe and survive in your climate.

3
Citrus General Discussion / Re: Hybrid Seedling Cotyledons
« on: February 18, 2018, 06:21:23 AM »
Among hundreds of Thomasville  seedlings that seems all to be nucellar, I found only one that has an opposite sense of rotation. Otherwise, it looks to be the same.

4
Citrus General Discussion / Re: Hybrid Seedling Cotyledons
« on: February 17, 2018, 08:52:35 AM »
You can also distinguish seedlings  by the appearance of leaves clockwise or counter clockwise and number of nodes to achieve a full turn

5
Citrus General Discussion / Re: Hybrid Seedling Cotyledons
« on: February 16, 2018, 06:21:30 PM »
Congratulations in getting hybrids between poncirus and kumquat cross, particularly with triploid one.
May be clementine genome is helping to achieve it.  And  some of them should be  also triploid.

6
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 16, 2018, 02:42:38 PM »
It really depends if it is flowering alone or bees and bumblebees are hybridizing it with other citruses :-*

7
Citrus General Discussion / Re: Hybrid Seedling Cotyledons
« on: February 16, 2018, 09:57:24 AM »
Sorry i can`t post pictures in my post. >img< button does not work. neither with flickr nor with vgy.me
;D
HanaYuzu

N1tri

C35

Another  C35

Batumi F2


I think that what you are taking for eccentrically situated cotyledons are true leaves with cotyledons that are still covered with testa in germinated seeds.

8
Cold Hardy Citrus / Re: Cold Hardry Grapefuit/Pommelos
« on: February 15, 2018, 09:21:04 AM »
Ilya, compared to Enzo and Welker is Bloomsweet as hardy or less? And fruit quality is comparable or not?
I do not have an answer for their relative hardiness, but for me Bloowsweet is excellent, the best.

9
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 15, 2018, 09:15:29 AM »
Is it possible that some seeds from Ichangensis fruit may produce a true Ichangensis? It can self pollinate, no?  If not, it is probably worth trying to plant seeds from Ichangensis fruit to get more random cold-hardy hybrids, right?
Yes indeed, when self-pollinated it will give ichangensis plants,  but they will be different from each other. This species is very heterogeneous, with flowers of varying colors and sizes, from tall trees to small bushes.

10
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 15, 2018, 09:10:44 AM »
Robert,
Do you remember the size of its flowers?
IVIA from Lenzi nursery has enormous  flowers with pink hue.

11
Cold Hardy Citrus / Re: Swamp Lemon Adventure!
« on: February 15, 2018, 09:01:40 AM »
These are two different varieties

12
Cold Hardy Citrus / Re: cold hardy Citrus for zone 7b?
« on: February 15, 2018, 03:56:51 AM »
I have already  their fourth generation, but  hardiness is not improving.
Are seedlings different from their mother or are they just copies ( not in the meaning of clones, but nearly identical)?
Mikkel,
 Thomasville forms seeds only when cross-pollinated. The seeds contain one or several embryos, but are all nucellar. I  germinated hundreds of them, up to now found two, that could eventually turn to be mutants, but not a single hybrid.
Many of Thomasville seedlings are weak, having root problems, but it seems that this feature is not hereditary, when grafted they develop nicely.

13
Cold Hardy Citrus / Re: cold hardy Citrus for zone 7b?
« on: February 15, 2018, 03:41:19 AM »
Are those fruits on the picture from a four years old seedling?! Wow, thats impressive.
And the tree on the picture of 2015? Is that the mother plant?
The fruits are from second generation seedling that nearly died several times but resprouted. My grafted Thomasville died in 2005

14
Cold Hardy Citrus / Re: cold hardy Citrus for zone 7b?
« on: February 14, 2018, 11:56:27 AM »
No, never. My initial Thomasville was from B.Voss, grafted very low on poncirus. It died after -12C, but I had several of its seedlings,  they usually become damaged at approximately -10C.
It should be taken into account, that in my climate this sort of temperatures occur during long cold spells with more than one week of frozen ground.
Seedlings are coming nicely from roots after complete trunk death. Among them many are weak, having root problems, but one in 10 is growing very quickly and fruiting in 4-5 years.
I have already  their fourth generation, but  hardiness is not improving. 

15
Cold Hardy Citrus / Re: cold hardy Citrus for zone 7b?
« on: February 14, 2018, 08:52:18 AM »
They are toasted  after few hours at -5C

16
Cold Hardy Citrus / Re: Swamp Lemon Adventure!
« on: February 14, 2018, 03:06:54 AM »
May be Millet or some other American members of old forum  who know this guy Terry from Wilmington can ask him for help ?

17
Cold Hardy Citrus / Re: Long term cold hardy citrus breeding project
« on: February 13, 2018, 01:09:34 PM »
I believe European regulations concern only plant material send to EU, not vice versa.

18
Cold Hardy Citrus / Re: Citsuma Prague
« on: February 13, 2018, 01:06:16 PM »
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.
Robert, welcome to this board :D

19
Cold Hardy Citrus / Re: Swamp Lemon Adventure!
« on: February 13, 2018, 12:57:57 PM »
Could  this  evergreen shrub growing on the West bank of Livingston Creek be a Swamp Lemon?



20
Be careful, biuret is forming from urea during storage.

21
Cold Hardy Citrus / Re: Ichang Papeda search.
« on: February 12, 2018, 11:59:12 AM »
Ichangensis is not true from seeds, so I suppose your plants are different from mature IVIA sold by  European nurseries.
IVIA has in its collection two different ichangensis: IVIA-358   with big flowers and   IVIA-235 with small flowers.
It is  IVIA-358 that gives almost seedless fruits of rather good quality.

22
Cold Hardy Citrus / Re: Swamp Lemon Adventure!
« on: February 12, 2018, 11:55:05 AM »
What about the palmtrees? Sabal minor? Or Rhapidophyllum hystrix? Swamp lemon looks like a common Poncirus -am I right? But it seems to be much less cold hardy, I suppose.
Why do you think it is less hardy?

23
In the Supplementary information  for this paper it is stated that :

In the nuclear genome tree, Poncirus is an outgroup of citrus while in the
chloroplast phylogeny Poncirus resides near the root of the tree. This observation is
compatible with the view that Poncirus is likely a descendent of an ancient hybrid of
citrus with an unknown parent, as suggested before.

24
Actually vinegar ( acetic acid) :)

25
Cold Hardy Citrus / Re: Anyone know any sources of N1tri citrus?
« on: February 05, 2018, 09:00:29 AM »
It is roughly 2 m tall



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