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Author Topic: Shiranui too large for branches  (Read 710 times)

simon_grow

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Shiranui too large for branches
« on: January 22, 2019, 07:52:29 PM »
the Last couple of days have been pretty windy and I just got home from work and noticed that two branches of my  Shiranui(Dekopon) were snapped in half. Iíve noticed that Shiranui, like most tangerines, tend to hold too many fruit on their branches. I thought I was smart and thinned about 70% of the fruit when they were about marble size but that just made the remaining fruit bigger. My larger fruit are as big, if not bigger than the store bought Premium Dekopon fruit. My largest weighed about 1 lbs 2 Oz.

Anyone else have issues with their Shiranui grafts? The fruit were already colored up but I was hoping to let them hang a bit longer to sweeten up more. I just cut open a smaller fruit to take a Brix reading and it came in at 14% Brix.

Without curing the fruit, the flavor was good with good sweetness and an acidity similar to an Orange. I will cure some of the fruit in my garage for 1-3 weeks in order to let the citric/ascorbic acid mellow to see if flavor improves.  Here are some pictures of the fruit harvested from the branches that snapped off.









Simon

Millet

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Re: Shiranui too large for branches
« Reply #1 on: January 22, 2019, 11:18:07 PM »
A suggestion.  when you cure your fruit, you might consider wrapping it in paper, as the Japanese do.

zephian

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Re: Shiranui too large for branches
« Reply #2 on: January 23, 2019, 12:49:41 AM »
I have an unknown type of pomelo that had the same issue with winds this year, and a plot last year. Always a learning experience... I lost a full wheelbarrow off one branch from my pomelo this year the fruits were soccer ball size!
-Kris

simon_grow

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Re: Shiranui too large for branches
« Reply #3 on: January 23, 2019, 08:11:16 AM »
Thanks for the suggestion Millet, Iíll give it a try.

Zephian, that sucks. Hopefully your fruit were still edible.

Simon

fyliu

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Re: Shiranui too large for branches
« Reply #4 on: January 29, 2019, 03:10:34 AM »
All mine broke their twigs this year. I haven't tasted any yet, but the squirrels chewed on the green fruits before I plastic boxed them.

Millet, so a few days to dissipate excess moisture, some days wrapped in paper? Or just directly wrap them in paper for a few weeks?

behlgarden

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Re: Shiranui too large for branches
« Reply #5 on: January 29, 2019, 06:30:22 PM »
Look at these monsters


Millet

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Re: Shiranui too large for branches
« Reply #6 on: January 29, 2019, 09:11:57 PM »
« Last Edit: January 29, 2019, 09:13:51 PM by Millet »

simon_grow

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Re: Shiranui too large for branches
« Reply #7 on: January 30, 2019, 06:16:02 PM »
Behl, those are huge!

Thanks Millet, 2 months at below 59F and covered in the dark.

On a side note, I purchased some Dekopon at Sprouts and it had a Brix reading of 14%, same as what I got from my grafts.

Simon

tve

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Re: Shiranui too large for branches
« Reply #8 on: May 12, 2019, 12:56:35 AM »
Interesting info. Has anyone got some links to the science behind the "maturing" or "curing" of citrus? Citrus is a non-climacteric fruit and also doesn't sweeten with added ethylene (but does change color). There's no starch to convert to sugar in the fruit... I thought that (to quote Wikipedia): "Once [citrus fruits] are separated from the tree, they do not increase in sweetness or continue to ripen. The only way change may happen after being picked is that they eventually start to decay." I'm sure I'm missing something, though  ;D ;D

Ilya11

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Re: Shiranui too large for branches
« Reply #9 on: May 12, 2019, 04:39:45 AM »
Although citruses are considered non climacteric, ethylene is present constantly  and exerts a multitude of  influences on the fruit quality.
There is an excellent review on  harvest changes, probably even too detailed

 "Citrus are longtime recognized as non-climacteric fruit, as respiration
rate declines progressively during fruit ontogeny and mature fruit
produce very low and constant amount of ethylene (Aharoni, 1968;
Eaks, 1970). However, by particular and transient response of most
citrus fruits to exogenous ethylene have been also referred to as pseudoclimacteric.
Ethylene biosynthesis is also regulated in citrus fruits in
a usual manner, since at early stages of fruit development, ethylene
stimulates its own production in an autocatalytic-like system, whereas
mature fruits responded as an auto-inhibitory system (Katz et al., 2004;
Alůs et al., 2013). These results confirm that ethylene is able to stimulate
a myriad of molecular responses in the peel of citrus fruits, but
as a non-climacteric fruit, it requires the continuous presence of the
hormone to sustain these physiological and molecular responses"
« Last Edit: May 12, 2019, 05:31:26 AM by Ilya11 »
Best regards,
                       Ilya

tve

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Re: Shiranui too large for branches
« Reply #10 on: May 12, 2019, 11:55:34 AM »
Thanks for the reference, now I'm trying to figure out how to get the full text, ugh. I hate Elsevier and that whole journal system...

Ilya11

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Re: Shiranui too large for branches
« Reply #11 on: May 12, 2019, 12:45:23 PM »
Give me your email by PM, I have this pdf
Best regards,
                       Ilya

 

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