Three types of the concentration dependence of the red and far-red chlorophyll a fluorescence ratio

Valerii Zavoruev; Elena Zavorueva

doi:10.1117/12.497315

28 March 2003 Three types of the concentration dependence of the red and far-red chlorophyll a fluorescence ratio

Valerii Zavoruev, Elena Zavorueva

Proceedings Volume 5027, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics; (2003) https://doi.org/10.1117/12.497315
Event: Ninth Joint International symposium on Atmospheric and Ocean Optics, 2002, Tomsk, Russian Federation

Abstract

In this paper the dependence of the F₆₈₂/F₇₃₄ on the concentration in plants, grown under continuous light and natural photoperiod is studied. For natural photoperiod the duration of light for all probes was the same, as since leaves with different colors are selected at a time. It is shown, the dependence of the F₆₈₂/F₇₃₄ ratio on chlorophyll concentration in plant, grown under high-intensity continuous is described by a parabolic function and under intermittent light - exponential function. Third type of concentration dependence of the parameter F₆₈₂/F₇₃₄ was obtained in leaves of poplar in the process of vegetation under study of fluorescence and pigment characteristics. The dependence has complicated character and known functions cannot describe it. It is concluded, that all known dependences of the F₆₈₂/F₇₃₄ ratio on concentration of chlorophyll to this moment are used to concrete conditions of growth of plants and the method of probes choice for measurement. Now the universe function, connecting the relation between red and far-red fluorescence with chlorophyll content, is not existed.

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Valerii Zavoruev and Elena Zavorueva "Three types of the concentration dependence of the red and far-red chlorophyll a fluorescence ratio", Proc. SPIE 5027, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics, (28 March 2003); https://doi.org/10.1117/12.497315

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KEYWORDS

Luminescence

Vegetation

Picosecond phenomena

Atmospheric optics

Fermium

Lamps

Absorption

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