From: aquatic-plants-request at actwin_com
Reply-To: aquatic-plants at actwin_com
To: aquatic-plants at actwin_com
Subject: Aquatic-Plants Digest, Vol 22, Issue 36
Date: Wed, 29 Jun 2005 12:03:27 -0400
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Today's Topics:
1. Re: Aquatic-Plants Digest, Vol 22, Issue 35 (Ann Viverette)
----------------------------------------------------------------------
Message: 1
Date: Tue, 28 Jun 2005 12:10:30 -0500
From: "Ann Viverette" <annv777 at houston_rr.com>
Subject: [APD] Re: Aquatic-Plants Digest, Vol 22, Issue 35
To: <aquatic-plants at actwin_com>
Might add temperature to the list, not that I've actually done a controlled
test, but it appeared t me that in tanks with cooler temps, the internode
length of ambulia was shorter.
AnnV
----- Original Message -----
From: <aquatic-plants-request at actwin_com>
To: <aquatic-plants at actwin_com>
Sent: Tuesday, June 28, 2005 11:01 AM
Subject: Aquatic-Plants Digest, Vol 22, Issue 35
> Send Aquatic-Plants mailing list submissions to
> aquatic-plants at actwin_com
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://www.actwin.com/mailman/listinfo/aquatic-plants
> or, via email, send a message with subject or body 'help' to
> aquatic-plants-request at actwin_com
>
> You can reach the person managing the list at
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>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Aquatic-Plants digest..."
>
>
> Today's Topics:
>
> 1. RE: internode distance (Thomas Barr)
> 2. Re: RE: internode distance (Liz Wilhite)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 27 Jun 2005 23:01:01 -0700
> From: "Thomas Barr" <tcbiii at earthlink_net>
> Subject: [APD] RE: internode distance
> To: aquatic-plants at actwin_com
>
> Crowding (This occurs in forest as well with trees and other plants, and
> in
> aquatic systems), intensity, nutrient status(CO2, macro nutrients),
color
> temps/wavelenth are not relevant at our depths, there is little
selective
> nm extinction at less than 24 inches~ 60cm in clear fresh water.
> Some may want to argue about it, but I do not see any differences, never
> have.
> Plants adapt to the color differences anyway and it gets back to an
issue
> of intensity rather than wavelength.
> Trimming/pruning routines and branching/canopy also plays a role.
> You can a high light tank but a dark corner may have a plant that is
> reaching for more light.
> So add placement to that list.
>
> Prune more often, add more PO4/trace/CO2 is a general notion I suggest.
>
> Regards,
> Tom Barr
>
> 3rd annual Plant Fest July 8-14th 2005!
> subscribe at BarrReport_com Get connected
> www.BarrReport.com Get the information
>
>
>
>> [Original Message]
>> From: <aquatic-plants-request at actwin_com>
>> To: <aquatic-plants at actwin_com>
>> Date: 6/27/2005 9:02:27 AM
>> Subject: Aquatic-Plants Digest, Vol 22, Issue 34
>>
>> Send Aquatic-Plants mailing list submissions to
>> aquatic-plants at actwin_com
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>> http://www.actwin.com/mailman/listinfo/aquatic-plants
>> or, via email, send a message with subject or body 'help' to
>> aquatic-plants-request at actwin_com
>>
>> You can reach the person managing the list at
>> aquatic-plants-owner at actwin_com
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Aquatic-Plants digest..."
>>
>>
>> Today's Topics:
>>
>> 1. Internode Distance (Mariano Fern?ndez Bonfante)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 27 Jun 2005 12:07:35 +0000
>> From: Mariano Fern?ndez Bonfante <mariano_bonfante at hotmail_com>
>> Subject: [APD] Internode Distance
>> To: aquatic-plants at actwin_com
>>
>> List:
>>
>> Which are the key factors that determine the internode distance in stem
>> plants?. Would it be the total light amount?, would it be the red to
blue
>> relation?, what about water chemistry?.
>>
>>
>> Looking forward,
>>
>>
>> Mariano F. Bonfante
>> Buenos Aires
>>
>>
>>
>>
>> ------------------------------
>>
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>>
>> End of Aquatic-Plants Digest, Vol 22, Issue 34
>> **********************************************
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 27 Jun 2005 23:19:22 -0700
> From: Liz Wilhite <satirica at gmail_com>
> Subject: Re: [APD] RE: internode distance
> To: tcbiii at earthlink_net, aquatic plants digest
> <aquatic-plants at actwin_com>
>
>>
>>
>> > List:
>> >
>> > Which are the key factors that determine the internode distance in
stem
>> > plants?. Would it be the total light amount?, would it be the red to
>> blue
>> > relation?, what about water chemistry?.
>
> Some time back we were asked about this from a list member who had very
> high light levels. As he knew, and as I assume you know, extended
> internodal
> distances are often found in terrestrial plants that receive
insufficient
> light. After that post I had an unexpected opportunity to observe
changes
> in
> internodal distances in my own aquarium. I had noted earlier that with
> light
> levels approaching 5 wpg that internodal distances were lengthened --
> something I wouldn't have predicted from my gardening experiences. What
I
> recently observed is that internodal distances are lengthened when
nitrate
> levels approach zero and shorten when nitrate levels are then increased
to
> the range of 10 and 20 ppm. I did not test PO4 and K levels when this
> occurred, and they could easily have been low along with NO3 levels. (I
> had
> injured my back and not added ferts for a period of time.) I am not
saying
> that low NO3 levels cause extended internodal distances -- this is not
> science but a report of observations. It could have been something
> completely different that happened at the same time which caused the
> changes
> I observed.
> Liz
>
>
> ------------------------------
>
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> End of Aquatic-Plants Digest, Vol 22, Issue 35
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