This is not to mention visual acuity
green light provides by complementing
red and blue to create a full and broad-
spectrum, perceived as white light by
the human eye. This enables growers
to clearly observe their plants, which
is sometimes overlooked as another
key contributing factor to the success of
plant growth and development.
The best way we have found to put this
myth to rest would be to perform side-
by-side trials of plants grown under
narrow-band red and blue lights at
high PPFD compared with plants grown
under a comparable PPFD of broad-
spectrum light. The resulting plants
and yields will most definitely speak
for themselves, as it has for the many
commercial growers that have employed
lighting solutions with a broad-spectrum
for their growing applications.
Fig. 4a Spectral distribution chart for a typical high pressure sodium light bulb.
Fig. 4b Spectral distribution chart for a typical metal halide light bulb.
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