What is the optimal wavelength of light for growing plants (cacti indoors in a northern illinois climate)?
goken at basec.net
Tue Oct 14 05:47:14 EST 1997
> I am trying to accelerate the growth of my baby cacti by increasing their
> light exposure with fluorescent lamps. I am wondering what would the
> optimal wavelength for promoting growth (i.e. photosynthesis). My
> question, in part, stems from interest in growth lamps.
> I have seen inexpensive (<$10) incandescent "plant lamps". However,
> fluorescent lamps produce 4x visible light than their incandescent
> counterparts. BTW, I don't want to use fluorescent plant lamps because I
> do not want to use special fixtures. Modern compact fluorescent lamps
> work quite well.
> Pivotal question:
> Which is better for growing cacti: incandescent plant lamps or compact
> fluorescent lamps?
> REMOVE "XSPM" before the @ to reply via email
The trouble with incandescent gro-lights is they start with a
lower lumen per watt rating (just becasue they are incandescent) and
then they use subtractive filtering to get a daylight lamp. This
lowers the efficiency even more. However, as you say, they do not
require auxilary equipment.
I don't know the particulars (like sd curves, etc.), but SoLux
halogen/incandescent lamps offers several selections of daylight lamps.
Check out their webpage, and happy gardening :) Ken goken at basec.net
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