4.6 Article

Plant Photochemistry under Glass Coated with Upconversion Luminescent Film

期刊

APPLIED SCIENCES-BASEL
卷 12, 期 15, 页码 -

出版社

MDPI
DOI: 10.3390/app12157480

关键词

photoconversion; upconversion; nanomaterials; greenhouses; plant photochemistry

资金

  1. Ministry of Science and Higher Education of the Russian Federation [075-15-2020-774]

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This study examined the effect of upconversion nanopowders on the photochemistry of Solanum lycopersicum. It was found that glasses coated with upconversion luminophores can enhance the efficiency of plant photosynthesis and protect against ultraviolet radiation. Cultivating Solanum lycopersicum under photoconversion glasses showed better growth under stress conditions.
It has been shown that the cultivation of plants under glass coated with nano-sized upconversion luminophores led to an increase in plant productivity and the acceleration of plant adaptation to ultraviolet radiation. In the present work, we examined the effect of upconversion nanopowders with the nominal composition Sr0.955Yb0.020Er0.025F2.045 on plant (Solanum lycopersicum) photochemistry. The composition, structure and size of nanoparticles were tested using X-ray pattern diffraction, scanning electron microscopy, and dynamic light scattering. Nanoparticles are capable of converting infrared radiation into red and green photons. Glasses coated with upconversion luminophores increase the intensity of photosynthetically active radiation and absorb the ultraviolet and far-red radiation. The chlorophyll a fluorescence method showed that plants growing under photoconversion and those growing under common film demonstrate different ability to utilize excitation energy via photosynthesis. It was shown that under ultraviolet and high light conditions, the efficiency of the photochemical reactions, the non-photochemical fluorescence quenching, and the electron transport remained relatively stable in plants growing under photoconversion film in contrast to plants growing under common film. Thus, cultivation of Solanum lycopersicum under photoconversion glasses led to the acceleration in plant growth due to greater efficiency of plant photochemistry under stress conditions.

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