Indoor Spectrum questions for LED grow systems

[auto-p]

Hi guys!

The skeptical pig got me started thinking about my LED experiments I want to try.

Can anyone point me to scientific journal articles about cannibis photosynthetic absorption spectrums? And especially how they relate to cannabinoid production.

I'm planning on running some tests using cloned individual plants grown under single spectrum lighting-- 425nm, 450nm, 620nm, and 670nm.

I just finished a design of a small LED fixture for horticultural lighting, and there is a very broad available spectrum of LEDs available--- but efficiency reasons, I would like to keep the usable spectrum as narrow as possible.

The 670nm LEDs produce the most light for the energy input (about 48% efficient). Deep blues (425nm) are the least efficient light producers, but from my research, chlorophyll absorbes blue a little more readily than red.

Any insight and assistance would be welcome!

 

[agito]

400 - 520 nm blue and 610 - 720 nm red
http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookps.html

let me know how you get on i want to build a next gen with the new high watt led's

 

[Muddy]

While this doesn't specifically get into light spectrums it's probably something you might want to read for a better understanding of what happens to cannabis on a biological level. I think it would be helpful for you. https://www.autoflower.org/f42/marijuana-botany-1963.html

 

[WVTurtle]

Welcome sneaky spam....

 

[Joe Dirt]

Welcome sneaky spam....

Of whom do you speak?

 

[WVTurtle]

Hence they were very sneaky. :thumbs:

 

[JM]

sneaky spam in a can...

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