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PostPosted: Tue Jan 29, 2019 7:13 am 
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Joined: Sun Jan 16, 2011 12:05 am
Posts: 1346
Location: Ljubljana, Slovenia
When leaves fully mature in the winter, are the variegated parts colored yellow, not cream white?
The two seedlings I have, start leaves as lime green and then the variegation appears, chlorophyll seems to migrate somehow into darker part of the leaf and the variegation becomes light yellow. Strange fellas :D

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PostPosted: Thu Jan 31, 2019 12:49 am 
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Joined: Thu Feb 12, 2015 3:38 am
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Location: Emmett Idaho
Bamboo Society Membership: ABS - America
more of a lime color almost yellow with very faint variegation. sadly I moved and left it because I did not think it would grow here

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PostPosted: Thu Apr 04, 2019 5:22 pm 
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Location: Ljubljana, Slovenia
It started! The shoots are generally larger and there seems to be a lot of them. Seedling that was performing best last year is on overdrive this year as well. :)

Photos here... I can't seem to post photos here from other domains.
https://cold-hardy.com/phyllostachys-ar ... ason-2019/

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PostPosted: Mon May 06, 2019 8:21 pm 
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Location: Ljubljana, Slovenia
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Well, shooting is under way and branching-out is right behind the corner. While digging around the variegated bamboo this spring, I severed a small part of rhizome of the strongly variegated seedling and placed it into a large pot. I hoped it will start growing. It did. I now hope some of the buds will turn into rhizomes, there should be at least 4 nodes underground, so the chance is more than good..

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PostPosted: Sat Jun 15, 2019 6:20 am 
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Location: Ljubljana, Slovenia
https://cold-hardy.com/phyllostachys-ar ... o-gallery/

Posting images from external sources still doesn't seem to work :/
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Anyway. The seedlings are now very active. The shooting is over and the new growth is leafed-out completely. The first set of leaves on 2 of the variegated seedlings is almost completely yellow, like always, so it's going to suffer for a while under hot and bright summer sun. There are first signs of leaf damage already apparent. I wonder if growing them in dappled light or complete shade would preserve the first leaves.
I made a small division earlier this year and it took off and leafed-out. It soon perished because it couldn't get any photosynthesis done in time to fill up the used reserves. Cloning it using rhizome divisions will be tricky, I'll have to keep at least one mature culm with it.

Photos can't really tell how bright the leaves are. When it's sun lit, it glows. Especially in contrast with the non-variegated seedling next to it.

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PostPosted: Sun Jun 23, 2019 6:00 am 
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Location: Ljubljana, Slovenia
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First year shoot color after leaves appear in the early summer.

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Leaves on last year's culms

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PostPosted: Sun Jun 23, 2019 4:25 pm 
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Joined: Sat Oct 01, 2005 9:14 pm
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Location: Esparto, CA
Bamboo Society Membership: ABS - America
I have a young D latiflorus that sustained serious cold damage last winter but did not top kill. Once it started to releaf all of the leaves were heavy with cream and cream striping - you'd think it was a named variegated form. But now that it has recovered all the newest leaves are again a solid green and the new shoot is starting to leaf out and show no variegation.

I don't think it is just a juvenile stage thing as pre-winter the leaves were solid green. Perhaps something chemical going on (or not going on) relative to stress in these cases?

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PostPosted: Sun Jun 23, 2019 6:09 pm 
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Location: Ljubljana, Slovenia
Same thing was evident when I grew it inside. First leaves were practically white, then each new leaf gained a bit more chlorophyll. At some point new leaves got almost fully green. At super juvenile seedling stage, while it didn't wait for the spring to shoot, new growth was pale from beginning and darkened following the same pattern.

During the winter, it didn't suffer at all. Most if not all the leaves were in the same condition as they were in the autumn and all the seedlings upsized considerably. Considering how pale the seedlings are, any upsize is fantastic achievement :D
This year I noticed more culm variegation. It is following the same pattern - looks like chlorophyll would migrate from pale part and concentrate in the dark green stripes. Same is happening in leaves. I'll post two photos as an example a bit later. Yellow becomes cream white and lime green becomes darker.
All three seedlings are showing similar variegation, only difference is - one seems to be chimeric and the amount of variegation (albinism) is different.

Regarding the cause.. It is strange as the new growth is darker on old culms. I think HT 'Shiroshima' also turns darker green during the year. Could be related to similar if not the same mechanism.

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PostPosted: Sun Jun 23, 2019 6:26 pm 
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Location: Ljubljana, Slovenia
Picture from like a month ago. Note the lime green parts of the leave with the variegation. Dark stripes are not as dark as they get later.
Attachment:
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Photo from a few days ago. Yellow parts of the leaves became cream white, dark striping further darkened. New leaves started growing and there's even an almost completely white branch. It started after the appearance of the larger nicely variegated leaves on both photos.
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