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Monochromatic LEDs Effect on Rocket (Eruca sativa. Mill.) Morphogenesis and Productivity

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

In this study the effect of different monochromatic light modes on rocket (Eruca sativa. Mill.) plant development was evaluated. LED light sources significance increases rapidly at the wide application range and have acquired an important role in plant development. Some morphological parameters of the plants were analyzed. Plants grew in a closed growth chambers where three light intensities (100, 1000, and 1400 μmol m–2 s–1) provided by three types of LEDs developed at the Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences: red (R), green (G), blue (B), and photoperiod (light/dark—16/8 h) were used and compared with warm white light (WW) (control) with an energy ratio (%) in the red-green-blue range of R38 : G52 : B10. The performed analyzes showed that the highest values of the shoot fresh weight occurred under R2, G2, and WW3 treatments, respectively. The greatest total leaf area values occurred under WW1, B1, and G2, respectively. The highest dry weight content occurred under WW2, WW3, and R2, respectively. The data showed that the application of B2, G2, R2, and WW3 light modes resulted in an increase in growth and productivity as compared with the other treatments and the control. Thus, the monochromatic blue (B2), green (G2), and red (R2) light modes with 1000 μmol m–2 s–1 intensities were the most favorable for plants development among others and could be used for optimization of plant cultivation. The effectiveness of LEDs developed at the Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences is acknowledged. The study showed the importance of plant growth under monochromatic RGB spectra.

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Funding

The research was supported by Russian Science Foundation (project no. 20-16-00016).

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Correspondence to E. P. Subbotin.

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The authors declare that they have no conflicts of interest.

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Kulchin, Y.N., Bulgakov, V.P., Subbotin, E.P. et al. Monochromatic LEDs Effect on Rocket (Eruca sativa. Mill.) Morphogenesis and Productivity. Bull. Russ. Acad. Sci. Phys. 86 (Suppl 1), S114–S118 (2022). https://doi.org/10.3103/S1062873822700502

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  • DOI: https://doi.org/10.3103/S1062873822700502

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