Optimum wavelength of light for best plant growth.

dhaas at HUGO.FSUFAY.EDU dhaas at HUGO.FSUFAY.EDU
Fri Apr 15 11:50:15 EST 1994


Bruce Murrell wrote:

> Could anyone provide information on which wavelengths of light provide the
best growth rate for plants.


The action spectrum for photosynthesis (the wavelengths where you get the most
photosynthesis) varies from plant to plant,however, in general you could say
that the rate for most plants peaks in the blue and red parts of the spectrum
red being the most effective. If you consider  585 - 660 nm as being
100% effective then the peak in the blue 430 - 450nm is about 70% effective.
In between these two peaks the rate dips to about 60% at 485nm.

Hope this is what you want.

Dave



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