Green light is the least efficient which is why plants don't absorb it and so appear green. Sunlight is a mixture of all the color spectrum so much of the light that shines on plants is not used.

but may also benefit greenhouse horticulture. "When you have a better understanding of how different colors of light affect photosynthesis and plant growth, you can help growers develop smart ways ...

if they can be installed in agricultural greenhouses, it will be possible to generate electricity and grow crops on the same farmland.” The research was presented in “Green-light wavelength ...