In article <3h487b$8uu at newsbf02.news.aol.com>, rafimazor at aol.com
> Does anyone know how to quantitatively measure the total amount of sugar
> produced by a plant? This is for a school project. We are growing
> fast-plants (Brassica rapa) and we are trying to determine which
> wavelength of light is optimal for photosynthesis.
You might be able to achieve this by measuring the dry weight of the
Brassica samples after growing them under different wavelengths. This
should give an indication as to the optimal wavelength for photosynthesis.