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'Light' is one of the most important factors
for the growth of plant.
For instance, when the wavelength and/or strength of light changed, the plant changes
shape and/or the nutritional content. |
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Some pigments of the plant absorb specific light (wavelength) and these reactions are caused.
LED, which allows you to select the emitting colors, makes the experiments possible that the features of growth are extracted. |
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Photosynthesis |
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lighting energy is used in an important photoreaction, the
synthesis of carbon dioxide and water into organic compounds. The pigments called
chlorophyll play a role in this reaction by absorbing light. |
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 Absorption
spectra of Chlorophyll and photosynthetic rate |
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Photomorphogenesis |
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This is a photoreaction that induces qualitative changes in
a plant, such as seed germination, floral differentiation, flowering, development
of cotyledons, chlorophyll synthesis, stem elongation, and so on. The pigments
called phytochrome and cryptochrome are involved in this process. |
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| Spectrum
distribution of light absorption of phytochrome |
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| Photoconversion of phytochrome |
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| *These experiments are examples. It would differ according to characteristics
and/or its surrounding environment of the plant. |
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