What Wavelengths of Light are Most Effective for Photosynthesis?

Thread starter Galap
Start date Aug 14, 2010
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Photosynthesis Wavelengths

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Plants primarily utilize specific wavelengths of light for photosynthesis, with blue (around 400-500 nm) and red (around 600-700 nm) light being the most effective for growth. While plants can grow under monochromatic light, their growth is significantly enhanced when exposed to a combination of wavelengths. Infrared light is generally not effective for photosynthesis, and UV light can be harmful in excessive amounts, although some plants can tolerate low levels. The optimal light spectrum can vary among different plant species, with some requiring more blue light for vegetative growth and others thriving under red light during flowering. Overall, green light is less effective for plant growth compared to blue and red wavelengths.

Aug 14, 2010

Galap

What wavelengths of light can plants grow in? Which do they grow best in? How much does this differ from plant to plant?

For example, could you grow a plant under monochromatic light? Infrared light? UV light?

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Aug 14, 2010

Dr Lots-o'watts

http://en.wikipedia.org/wiki/Action_spectrum

Aug 14, 2010

Galap

Thanks. That answers it quite nicely.

Aug 16, 2010

mugaliens

To put it simply, green probably isn't the best color...

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