Efficency of photosynthesis

The light required by plants differs slightly from that used by the human eyes, which are most sensitive to the green to yellow range of the spectrum (about 550 nm).
In contrast, the most efficient wavelengths for driving photosynthesis - the process mostly responsible for plant growth and yield - are located close to the red edge of the visible spectrum, at around 600 - 700 nm.

→ Most plants appear green due to chlorophyll absorption maximum, found in the red zone of the spectrum.
Consequently, the highest photosynthesis efficency will be achieved by irradiation of plants with red.
However there is also a need for broader spectrum radiation and light for a lesser absorption maximum in the blue zone which also contributes significantly to growth.

Greenhouse lamp spectra

To promote the growth and yield of plants, artificial lamps are used in greenhouses in addition to sunlight to supplement and modify the hours of photosynthesis activity.

Various lamp types can be used but the market preference for this application has been to use commercially well established High Pressure Sodium vapor lamps or Metal Halide lamps due to their relative high irradiation power and efficency.

Such lamps emit light mostly in the orange and red spectral range.
However, whichever lamps are used, through its specially modified reflectance spectrum, vegagreen permits the grower to get the maximum efficiency photosynthesis and plant yield.

The recently developed vegagreen material combines the growers' commercial demands with the natural demands of the plants to give an ideal solution for efficient growth.
The coating parameters of the vegagreen layer system are redefined (please, see the Tech data section) to provide a strong shift of maximum spectral reflectance to the orange and red zones most important for photosynthesis while maintaining high reflectance in the significant blue zone.

     Download Vegagreen Brochure