INFLUENCE OF THE SPECTRAL COMPOSITION OF LED RADIATION ON PLANT GROWTH AND DEVELOPMENT

Nowadays, artificial light is one of the main conditions for growing crops in today’s world with the development of city farming, light-culture laboratories and greenhouses. By modelling the spectral composition of the radiation and the irradiance value, it is possible to control plant processes by modelling the spectral composition of the radiation and the irradiance value according to the desired objectives. Such as shortening the vegetative and generative periods, stimulating flowering, increasing the biomass, root mass and root mass of root crops. As a consequence, the relevant task is the intelligent empirical selection and simulation of the most efficient light source, irradiance value as well as spectral component for a specific crop and cultivation direction. In this review, the authors presented an analysis of the effects of light spectra at different wavelengths and their intensity on photosynthesis and photomorphogenesis of the most commonly grown plant species in light culture. The data collected allow conclusions to be drawn about the light wavelengths most suitable for crops under different cultivation methods. This information will be very useful for evaluating the types of artificial light in different cultivation methods and further experiments.

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