Light Emitting Diodes As A Radiation Source For Plants

In recent advances light emitting diodes leds have remarkable potential as supplemental source of light for promoting plant growth. Light emitting diodes leds are a promising light source for growing crop plants in spaceflight systems because of their superior safety durability small mass and volume wavelength specificity.

Led Grow Lights Alter Sorghum Growth And Sugarcane Aphid

Light Emitting Diodes Progress In Plant Micropropagation

Radiation Intensity And Quality From Sole Source Light

Development of a more effective radiation source for use in plant growing facilities would be of significant benefit for both research and commercial crop pro duction applications.

Light emitting diodes as a radiation source for plants. The combination of red and blue leds has proven to be an effective lighting source for several crops yet the appearance of plants under red and blue lighting is purplish gray making visual assessment of plant health difficult. Leds are novel and versatile source of light with cool emitting surface wavelength specificity and low electric power requirement. Improved semiconductor technology has yielded led devices fabricated with gallium aluminum arsenide gaalas chips which have a high efficiency for converting electrical energy to photosynthetically active radiation.

An array of light emitting diodes leds that produce red ra diation supplemented with a photosynthetic photon flux ppf of 30 umols 1m 2 in. Recent developments in the field of light source technologies have opened up new perspectives for sustainable and highly efficient light sources in the form of leds light emitting diodes for greenhouse lighting. An array of light emitting diodes leds that produce red radiation supplemented with a photosynthetic photon flux ppf of 30 mmols 1 m 2 in the 400 to 500 nm spectral range from blue fluorescent lamps was used effectively as a radiation source for growing plants.

203205 pubmed google scholar farquhar gd and sharkey td 1982 stomatal conductance and photosynthesis. Light emitting diodes leds are a promising irradiation source for plant growth in space. The flexibility of matching led wavelengths to plant photoreceptors may provide more optimal production influencing plant morphology and chlorophyll content.

In conclusion the use of lightemitting diodes leds as a radiation source for plants has attracted considerable interest for commercial micropropagation. Therefore new sustainable solutions should be developed for energy efficient greenhouse lighting. Among the lighting technologies considered for space are light emitting diodes leds.

Bula rj murrow rc tibbitts tw and barta dj 1991 light emitting diodes as a radiation source for plants.