APPLICATION OF LASER RADIATION FOR PLANT GROWTH STIMULATION

 

Filina V.S., Sevostyanova N.N., Danilovskikh M.G. Application of laser radiation for plant growth stimulation. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2020, vol. 20, no. 5, pp. 767–769 (in Russian). doi: 10.17586/2226-1494-2020-20-5-767-769

Subject of Research. The paper describes the laser stimulation technology for kohlrabi cabbage in the climate of North-West of Russia. The genetic potential of plants is activated as a result of exposure to laser radiation. Method. The method was based on the exciting effect of laser radiation with a wavelength of 650 nm on the plant phytochromes. Due to irradiation, protein and carbohydrate synthesis was accelerated, which leads to an increase in yield. Irradiation was performed at night by a semiconductor laser with a wavelength of 650 nm, a radiation power of 150 mW, and a radiation exposure of 30 seconds. Main Results. The total amount of protein in the collected kohlrabi stem crops in the experimental group samples was higher by 6 % than the corresponding indicators of the control group samples, carbohydrates — by 27 %, and the average weight of the stem crops — by 30 %. Practical Relevance. The proposed technology reduces the use of chemical agents for stimulation of plants growth and protection and, therefore, increases the profitability of crop production and improves its quality.

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