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Re: Aquatic Plants Digest V6 #136

In a message dated 4/27/03 4:02:00 AM Pacific Daylight Time, 
Aquatic-Plants-Owner at actwin_com writes:

> >Thanks for your easily understood response, Giancarlo.  If I'm interpreting
> >this correctly, it sounds as though root fertilization might -- big might
> >there -- reduce the number of "aerial" roots.  I consider some, but not 
> all,
> >of them to be unsightly.
> I think it's more likely a response to needing more O2 for root 
> respiration.
> Much like Cypress knees in swamps or Mangrove roots' allowing O2 for root
> respiration. A number of wetland plants do this.
> There's no source of O2 down in the wetland substrates.

I'm sorry, Tom, but I didn't even take high school chemistry!  As the 
original post said, lots of this stuff just goes w-a-y over my head.  I don't 
understand what "02 for root respiration means.  Could you break that down 
for this aquatic plant illiterate -- please?

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