How much PAR can a plant take in at one time?


#1

Does anyone know how much PAR a plant can use at any given time?
I have heard 600 u/moles per sec i do not have anything to back that up.


#2

There is definitely a direct correlation to the airflow as well as Co2.

I would watch this talk regarding everything lighting by Cheri Kubota (who I’ll reference in third link and use her recommendations): https://www.youtube.com/watch?v=fPOt32WJyRM&list=PL7fPr3CuAdvv4ZPJKPvi4U7VblxKJnegD&index=2

Here is some good info by Cornell on lettuce, see the whole article here. Tipburn is a good example of a negative effect of an unbalanced growth recipe. What matters in this situation is the DLI, or total cumulative light for one growth day: http://www.ecaa.ntu.edu.tw/weifang/lab551/vegetable/culturalpractice/ten%20years%20of%20hydroponic%20lettuce%20research.pdf

If you want a specific answer to your situation, read this article which cites a 800-1200 umol photosynthetic saturation point for strawberries: https://cals.arizona.edu/strawberry/Hydroponic_Strawberry_Information_Website/Env._Control.html