A gardener is concerned that her greenhouse is getting too hot from too much light and seeks to shade her plants with coloured translucent plastic sheets, the colour of which allows passage of only that wavelength. What colour should she use to reduce overall light energy but still maximise plant growth?
A) green
B) blue
C) orange
D) Any colour will work equally well.

Question

Quizplus · Accepted Answer

Blue light is important for plant growth as it helps regulate opening of stomata and is crucial for photosynthesis. Using blue translucent sheets will reduce overall light energy while still allowing essential wavelengths for plant growth.

A Gardener Is Concerned That Her Greenhouse Is Getting Too