Light spectrum deficiency

reinbeaux(z8 WA State)September 14, 2004

How does one determine which part of the light spectrum plants are lacking when grown under lights? What are the deficiency symptoms to look for?

Thank you for reporting this comment. Undo
kdjoergensen

You really do not have any visible signs that tell you which spectrum is missing. Chlorophyll cells are activated by light in the blue and red spectrum whereas green and yellow light is reflected (very general description). This means that plants grown under blue/red lights tend to grow compact, have green foliage, and lush growth (provided other factors such as temperatures, moisture, and fertilizer are present). Tall skinny plants with poor color is an indication of inadequate light. It does not tell you which specific color, but you can atleast dermine that if the room is bright with plenty of (visible) light, it is probably light of the different spectrum (more green/yellow as opposed to blue/red).

    Bookmark   September 14, 2004 at 9:36PM
Sign Up to comment
More Discussions
Can Plants Absorb Water Through Their Leaves?
Forgot what they taught me in school years ago! Sometimes...
andyamp
A Question about hybrid vegatable seeds...
Hello all. I feel that this is very basic and that...
gata
Changes in Flowering Time
Hello! I'm a postdoc at Harvard, studying flowering...
curiousmachine
What are they?
Hi gardeners, I just went to empty the scrap bucket...
tonyjugoslav
What do you think about mycorrhizae fungi?
As a commercial product, I mean. Can it really help...
leaveswave
© 2015 Houzz Inc. Houzz® The new way to design your home™