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Messages - Ilya11

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1
Citrus General Discussion / Re: Louisiana Citrus - Video
« on: November 14, 2018, 07:49:12 AM »
I was able to open it with Firefox anonymizer anonymoX

2
Citrus General Discussion / Re: twig dieback with gum at branch crooks
« on: November 13, 2018, 01:28:33 PM »
It is probably the safest of all imaginable fungicides. Phosphorous acid is a natural compound occurring in the environment.   

3
Citrus General Discussion / Re: twig dieback with gum at branch crooks
« on: November 13, 2018, 09:02:08 AM »
//efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/j.efsa.2006.54r[/url]
"Feeding studies carried out at similar exposure
levels demonstrate that residues of fosetyl and phosphonic acid in milk and other animal commodities
are below the LOQ of the method of analysis validated for enforcement (0.1 and 0.5 mg/kg for milk
and other animal commodities respectively)."
Also:
"Therefore no dietary risk was identified due to residues resulting from the use of fosetyl-Al according
to the representative uses in citrus, grapes and cucumbers supported by the applicant."

https://efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/j.efsa.2018.5161
"Adequate analytical methods for enforcement are
available to control the residues of fosetyl-Al and phosphonic acid in plant matrices under consideration.
EFSA concluded that the proposed use of fosetyl-Al on potatoes and the proposed uses of potassium
phosphonates on pome fruits and peaches and the authorised use of potassium phosphonates on tree
nuts in the United States are unlikely to result in a consumer exposure exceeding the toxicological
reference values for phosphonic acid and fosetyl and therefore are unlikely to pose a risk to consumers

health."

4
Citrus General Discussion / Re: twig dieback with gum at branch crooks
« on: November 13, 2018, 03:41:31 AM »
Just one note more if you use Aliette or potassium phosphonate, both will turn into phosphonate acid with is effective to kill the patogen.
Bear in mind residues accumulate in plants even after many years. In Europe is was recently regulated it's use.
Where you got this information? Aliette (Al-fosetyl) is a very simple molecule that is  rapidly and completely eliminated both in plants as well as in environment.

5
Cold Hardy Citrus / Re: Yuzu... my new obsession!
« on: November 10, 2018, 08:19:24 AM »
Exactly, last year probably had one, but not 100 % sure

6
Cold Hardy Citrus / Re: Yuzu... my new obsession!
« on: November 10, 2018, 03:53:40 AM »
Yes, they were made this week, we had a very hot summer here.
Usually I use the seeds as pectin source for Yuzu marmalade, but probably it is not necessary, since Yuzu internal membranes are almost entirely pectin.

7
Cold Hardy Citrus / Re: Yuzu... my new obsession!
« on: November 09, 2018, 04:58:52 PM »
Juice is also present, in a proportion  I would say 70:30 to the seed's volume



8
Cold Hardy Citrus / Re: Yuzu... my new obsession!
« on: November 09, 2018, 11:50:32 AM »
My smallest Yuzu, but large fruits, very small thorns




Ready for Yuzucello

9
Citrus General Discussion / Re: Seedless lime deficiency
« on: November 08, 2018, 08:37:33 AM »
Could be also some virus disease like psorosis

10
Cold Hardy Citrus / Re: Name game
« on: November 06, 2018, 04:18:21 AM »

In terms of genetic marker studies, Yuzu usually groups closely to Ichangensis, but look at this study, they have Yuzu grouped in the mandarin group instead of Lemon/Lime/Ichangensis:
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0166969 (Fig 2, but you can also see Fig 1)
(however, in all fairness, since a few different varieties in that mandarin cluster, like Kabosu and Sudachi, also have descent from Yuzu, it could have thrown off the matching algorithm and made Yuzu wrongly cluster with mandarins)
This is a latest study made by respected Japanese biologists on the genomic characteristics of  traditional Japanese citruses
I wonder if you have enough qualification to challenge these results.

11
Cold Hardy Citrus / Re: Name game
« on: November 05, 2018, 04:05:24 AM »
Funny that you disagree but  wrote exactly what I stated:
Yuzu is not a direct descendent of C.ichangensis, so it is not an ichandarin😈

12
Cold Hardy Citrus / Re: Name game
« on: November 04, 2018, 09:02:28 AM »
I looked up “Kabosu “ or citrus sphaerocarpa on Citrus pages site. It’s Ichang/sour orange hybrid growing in China and popular in Japan.
It was believed to be like this, but turned out to arise from a hybridization of Kunenbo-A ( a sort of Tangor) and Yuzu. Yuzu itself has no direct relationship to C.ichangensis, it is not an ichandarin.

13
Cold Hardy Citrus / Re: Name game
« on: November 04, 2018, 04:30:06 AM »
If it is constructed like other portmanteau words it could be either ichangardia or ichandia.
Personally I prefer the first one.

14
Citrus General Discussion / Re: Oroblanco
« on: November 03, 2018, 06:23:52 PM »
If you cut these "early flowering" grapefruits after first year flower to just few centimeters  above the soil level  , they will again flower  next year on the tops of the shoots emerging below the cut.
That sounds incredible. Imagine, if you cut every year. What you will get in 20 years?

Something like this:


15
Citrus General Discussion / Re: Oroblanco
« on: November 03, 2018, 02:59:19 PM »
Yes I know, papaya is whole different subject for which I made a lot of experiments.
Thanks, I'll take a look at the article.
Send me your email address by PM

16
Citrus General Discussion / Re: Oroblanco
« on: November 03, 2018, 10:39:50 AM »
I successfully induced flowering in papaya at a young age. So I'll try same with citrus. I am not so sure about the size. from citrus cuttings I had flowers at 15 cm high Also I am still trying to figure out the Japanese methods.
Some varieties of papayas  can be grown from seeds like tomato with fruiting in 10 month ;D

17
Citrus General Discussion / Re: Oroblanco
« on: November 03, 2018, 10:33:14 AM »
If you cut these "early flowering" grapefruits after first year flower to just few centimeters  above the soil level  , they will again flower  next year on the tops of the shoots emerging below the cut. Otherwise, they will flower in more than 10 years.
I didn't know that. Thankyou!
I just sent you this article by email

18
Citrus General Discussion / Re: Oroblanco
« on: November 03, 2018, 06:44:48 AM »
Retardants are effective only when a plant reaches a certain size, usually at the height of 2 meters.

19
Citrus General Discussion / Re: Oroblanco
« on: November 02, 2018, 04:58:34 PM »
If you cut these "early flowering" grapefruits after first year flower to just few centimeters  above the soil level  , they will again flower  next year on the tops of the shoots emerging below the cut. Otherwise, they will flower in more than 10 years.

20
Citrus General Discussion / Re: What kind of citrus is this?
« on: November 02, 2018, 09:33:47 AM »
For me exterior smell is very different from interior one. Outside it  is pretty good with fruity note, while interior  is disgusting.

21
Cold Hardy Citrus / Re: Parentage of a hybrid?
« on: November 01, 2018, 07:58:57 AM »
Yes

22
Cold Hardy Citrus / Re: Parentage of a hybrid?
« on: November 01, 2018, 06:31:12 AM »
In the case of citranges, they really can be and are produced in both directions of pollination.
Colman, Morton, Rustic, Savage and Willitis are produced in 1897 by W.Swingle from a single fruit of Poncirus pollinated by sweet orange, while Rusk is produced from Orange x Poncirus cross.

Hybrids are preferably produced from mothers that have more zygotic progeny and fathers that produce enough viable pollen.

Mitochondria and chloroplasts are inherited  from mother plant, so seed parent participates a little bit more in a resulting hybrid.

23
Cold Hardy Citrus / Re: First fruits of Citrumelo 5star x Morton cross
« on: October 31, 2018, 10:11:44 AM »
I do not think so, evidently this guy decided to be of the size of its poncirus grandparents.
I still have its 5 brothers that survived out of initial three dozens. 
For me it is like a proof of  the concept, that it is possible to get rid of poncirus taste and to improve the hardiness with the respect of first generation hybrids.
It has also a tremendous advantage to ripen very early.

24
Cold Hardy Citrus / First fruits of Citrumelo 5star x Morton cross
« on: October 30, 2018, 11:09:42 AM »
This year at the end of May the first of the hybrids that I made  in 2011 by pollination of 5* citrumelo flowers by Morton Citrange flowered for the first time:


 
Most of the  flowers were defective without pistils, but eventually three fruits were formed



Fruits began to change color at the end of September, one of them looks ripe now









It is approximately of the size of poncirus fruit, has a pleasant outside odor resembling orange with fruity overtone, albedo is thick with some faint bitter taste, juice is sour like a lemon with no bitterness, no internal oils, no perceptible poncirus aftertaste. By taste it is close  to unripe orange.
I measured a sugar content - it had 13.5° Brix (Spanish clementine in parallel showed only 11°)

This  plant (11_03_24) is very resistant, probably more than both of its parents. It is in open ground without any protection since 2012, never was damaged by snow and freezing temperatures under conditions when both 5* and Morton showed some leaf damage. It requires a lot of iron supplement in  spring  to avoid deficiency, otherwise is very healthy 2 m high bush with small largely monofoliate leaves.
Could be an interesting step toward a  hardy citrus with sweet taste.

25
Cold Hardy Citrus / Re: Poncyrus juice resin settling procedure?
« on: October 30, 2018, 10:24:34 AM »
Sediment looks like pine resin with turpentine, I do not believe it is poisonous, but this is what principally makes poncirus fruits nonedible.
 Bitter taste is due to the presence of   poncirin, that is also present in the juice of grapefruit.
Specific odor that many people consider nasty is post probably due to poncirus specific sulfur containing volatiles.

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