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Chlorophylls and their absorption spectrum
The maximum absorption of the two most common chlorophylls is 430 and 662nm for chlorophyll a and 453 and 642nm for chlorophyll b.
Chlorophylls are a group of organic chemical compounds present, among others, in in plants. In photosynthetic organisms, they catch light quanta and transfer energy to the reaction center of the photosystem. They are responsible for the green color of plants. This is due to the high absorption in the red and blue parts of the light spectrum and low absorption in the green part of the spectrum.
The most common chlorophylls in nature are chlorophyll a and chlorophyll b. They are found in all photosynthetic plants.
The quantitative ratios of chlorophylls in plants depend, inter alia, on the habitat conditions: shade-loving (shade-tolerant) plants have more chlorophyll b, light-loving (light-loving) plants – chlorophyll a.
An example of color perception.
The banana does not emit yellow light. Banana peel absorbs all light waves of frequency except light from certain frequency ranges together perceived by us as yellow.
See also!
Optical radiation and the light spectrum
Light as visible radiation, its division and influence on the plant.
Why is light so important to plants?
What is necessary for the proper functioning of plants? Is all light good?
PPF and PPFD - the most important parameters of your lighting
What do plants eat? What do the two most important parameters in plant lighting mean?
Supplementation of red and blue light
Red and blue are the colors most absorbed by plants to support photosynthesis.
Light supplementation in the greenhouse.
How to illuminate crops when they already have access to daylight.
DLI - Daily Light Integral
An indicator showing the daily amount of light supplied to plants during the year.