Maximum Yield Cannabis Canada March/April 2023 | Page 24

Myth # 5
Green Light is of No Use to Plants
Grow lights have changed a lot in recent years . The associated technology continues to advance at breakneck speed with the development of high-tech LED lights with tailored spectrums and fully customizable settings . Red and blue light has always got all the press . Red for flower , blue for veg , and green tends to be written off . Still , we should not be so fast to dismiss it as science is starting to unravel its complex relationship with plant growth .
Chlorophyll absorbs light in the red and blue spectrum very well . However , chlorophyll reflects light in the green range , which is not helpful for photosynthesis . The reflection of green light is why we see leaves as green .
So , green light may not be helpful for photosynthesis , but we forget that pigments other than chlorophyll are present in our plants . As a full-spectrum light footprint enters the canopy , the leaves on the surface capture much of the blue and red photons . In contrast , the green photons penetrate deep down into the canopy . They are captured by other pigments , assisting with many complex processes inside your plants .
There are plenty of steps you can take as a grower to try and improve your results . I think the takeaway here , however , is to research what you read or are told before you implement it . Make sure the information comes from a reputable source and can be backed up by science . Don ’ t treat advice from a friend of a friend or some online forum as gospel without evidence or it could cost you dearly .
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