Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm trying to do some rough figuring to calculating efficiencies of various light sources for growing plants. I'm hampered, however, by the lack of a curve to multiply by the spectrum of light sources to determine the amount of photosynthetically active radiation that a typical plant will absorb and use.

I can find curves like below all over, but I can't get numerical data in the form of tables. Is there some source from where I can get such data?

PAR curve

share|improve this question
    
plantphysiol.org/content/early/2013/06/28/… is a starting point. He cites a paper of Mcree which may have what you're looking for (pay wall for me). Evans says that photosynthesis for 400-700nm drops off quickly as function of temperature. Red/blue encourage flowering/growth, a gardening truism which may be based on Mcree's paper. – daniel May 19 '14 at 20:56
    
@daniel your link was cut off – Nick T May 19 '14 at 21:16
    
This is it---plantphysiol.org/content/early/2013/06/28/… for the standard characters at the beginning ending with the three w's. – daniel May 19 '14 at 21:32
    
@daniel a safer way to provide links in comments is using markdown, e.g. [Google](http://www.google.com/) = Google. The second link you pasted has a "--except" appended on the end that I had to manually remove. – Nick T May 19 '14 at 22:37
    
@NickT sorry for the late comment but what do you mean here, by "numerical" – WYSIWYG Nov 21 '14 at 18:16

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.