Plants communicate what type of light they want
Enormous amounts of energy are wasted in greenhouses where our food is grown as a result of the plants receiving too much and the wrong kind of light. This can also stress and damage the plants. Researchers at Chalmers University of Technology are working on a globally unique method to measure how much and what type of light plants want.
Current greenhouses use what are known as high pressure sodium lamps, which are basically the same type of lamps that are used for street lights. They generally only have two positions, on or off.
"Everything in modern greenhouses is very high tech