Articles
PROTOTYPE DEVELOPMENT OF A PLANT-RESPONSE EXPERIMENTAL LIGHT-SOURCE SYSTEM WITH LEDS OF SIX PEAK WAVELENGTHS
Article number
970_41
Pages
341 – 346
Language
English
Abstract
A prototype of a light-source system has been designed and developed to support advanced experiments for plant light-response studies.
The light-source system consists of light-emitting diodes (LEDs) of six types: violet, blue, green, orange-yellow, red, and far-red (peak wavelengths: 405, 465, 530, 595, 660, and
735 nm). The light-source system can produce light with different compositions of the six wavelength ranges, and can provide photosynthetic photon flux densities (PPFDs) of 416 µmolm-2s-1 for an area of 0.18 m2 at a distance of 175 mm below the LEDs.
This PPFD is sufficient for cultivation experiments with almost all plants that might be grown under artificial light.
This paper provides a technical description of the light-source system and the results of quantification tests.
The light-source system consists of light-emitting diodes (LEDs) of six types: violet, blue, green, orange-yellow, red, and far-red (peak wavelengths: 405, 465, 530, 595, 660, and
735 nm). The light-source system can produce light with different compositions of the six wavelength ranges, and can provide photosynthetic photon flux densities (PPFDs) of 416 µmolm-2s-1 for an area of 0.18 m2 at a distance of 175 mm below the LEDs.
This PPFD is sufficient for cultivation experiments with almost all plants that might be grown under artificial light.
This paper provides a technical description of the light-source system and the results of quantification tests.
Publication
Authors
K. Fujiwara, A. Yano
Keywords
LED, light-source system, plant light-response, wavelength range
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