Ynt: [AGA Member] Anubias

["Faruk Gencoz" <fgencoz@metu.edu.tr>]

David,

If it might be due to light deficiency then the rhizome should develop some
skills to cope with low light levels because it is always under the leaves .
The rhizome is cylindirical, if it was light sensitive I guess it would be
better for it to be flat just like the leaves.

----- Original Message -----
From: david <hipchack@yahoo.com>
To: <aga-member@thekrib.com>
Sent: Monday, April 12, 2004 8:48 PM
Subject: RE: [AGA Member] Anubias


> I believe that the rhizome itself is photosynthetic
> and requires light to grow. When it is buried the
> rhizome loses any access to light and begins to rot.
>
> david
>
> --- Steve Pushak <teban@powersonic.bc.ca> wrote:
> > I don't bury the rhizome however I do bury about the
> > lower 1/3 of the
> > roots which descend from the rhizome when I
> > install/plant them. As the
> > plant grows and the rhizome extends, the plant will
> > grow sideways or
> > upward if it needs to get to the light. It will
> > continue to send down
> > vertical root/stems which spread down into the
> > substrate gravel & mud
> > below that. I believe that the plants gain an
> > advantage by having their
> > roots in the mud where they can access mineralized
> > nutrients only
> > available in the anaerobic part of the substrate.
> > The roots & root hairs
> > naturally grow into the regions that they "prefer"
> > over time. I've never
> > seen necrotic roots on Anubias but I don't plant
> > them into strongly
> > reducing (anoxic organic) substrates either.
> >
> > Since these plants can be easily overshadowed by
> > taller competitors, I
> > sometimes pot my small Anubias b nana so that they
> > gain an extra 4" of
> > height in the tank. These little guys really need
> > the help. I do the
> > same thing with my Glossostigma which would quickly
> > die if shadowed.
> >
> > Steve
> >
> > > Faruk wrote:
> > >
> > > >> Although the rhizome section is described as
> > horizontal
> > > subterranean
> > > plant
> > > stem, we know that Anubias' rhizome section should
> > not be
> > > buried. Would
> > > anyone describe why Anubias' rhizome rots due to
> > burying. Why
> > > does it need
> > > relatively aerobic conditions? <<
> >
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