Does the light color spectrum and frequency matter for photosynthesis?

Question

Do plants grow differently when given sun light, wolfram lamp, fluorescent light, LED light, infrared, ultraviolet, x-ray, unfocused laser and stroboscope?

Answer 1

It matters a lot. Take a look at this graph:

This graph is for the "normal" plants containing chlorophyll.

There're also "abnormal" :-) ones, simple water plants and cyanobacteria, that contain various phycobilins for photosynthesis instead of the chlorophyll.

If your question is practical, I'd recommend using specialy-designed fluorescent lamps called grow light.