BIOLOGICAL EFFECT OF DUAL-FREQUENCY LASER PULSE RADIATION DURING PRE-SOWING TREATMENT OF RICE SEEDS AT EARLY STAGES OF DEVELOPMENT UNDER STRESSFUL ENVIRONMENTAL CONDITIONS

Authors

  • L. M. Apasheva N.N. Semenov Federal Research Centre for Chemical Physics of the Russian Academy of Sciences
  • V. V. Savransky Prokhorov General Physics Institute of the Russian Academy of Sciences
  • M. I. Budnik Russian Academy of Missile and Artillery Sciences
  • L. A. Smurova N.N. Semenov Federal Research Centre for Chemical Physics of the Russian Academy of Sciences,
  • E. N. Ovcharenko N.N. Semenov Federal Research Centre for Chemical Physics of the Russian Academy of Sciences
  • O. T. Kasaikina N.N. Semenov Federal Research Centre for Chemical Physics of the Russian Academy of Sciences
  • A. V. Lobanov N.N. Semenov Federal Research Centre for Chemical Physics of the Russian Academy of Sciences, Moscow Pedagogical State University
  • I. V. Dyachenko Russian Academy of Missile and Artillery Sciences
  • A. V. Grudzinsky Russian Academy of Missile and Artillery Sciences
  • S. N. Sergeev Institute of Engineering Acoustics
  • K. A. Taraskin Institute of Engineering Acoustics
  • E. K. Barnashova Russian State Agrarian University – Moscow Timiryazev Agricultural Academy
  • E. A. Vertikova Russian State Agrarian University – Moscow Timiryazev Agricultural Academy

DOI:

https://doi.org/10.31857/S2500208224040132

Keywords:

pre-sowing laser treatment of rice, two-frequency laser radiation, biological effect

Abstract

The biological effect of two-frequency laser pulsed radiation produced on copper vapor during pre-sowing treatment of rice seeds of Veles and Leader varieties at early stages of development in extreme stressful environmental conditions has been studied. The copper vapor laser used in the experiment had the following output characteristics: wavelengths of 510.6 nm (green radiation line) and 578.2 nm (yellow radiation line), pulse duration of 15 ns, repetition frequency of 10 kHz, total pulse power of 10 kW, energy-power ratio between the green and yellow radiation lines 3/1 The interaction of laser radiation with wavelengths of 510.6 and 578.2 nm in the nonlinear medium of the seed caused the formation of additional wavelengths: a total wavelength of 271 nm (ultraviolet radiation) and a difference wavelength of 4.37 microns. Exposure to each of the four wavelengths in its spectral range could lead to the initiation of at least four radiation-induced biochemical reactions. It is shown that pre-sowing treatment of rice seeds with two-frequency laser pulsed radiation for 5-20 seconds had a stimulating effect on the growth and development of rice (the greatest effect was when exposed to 5-10 seconds), and also increased its stability when grown in extreme stressful environmental conditions (moisture deficiency, depleted soil) at early stages of development.

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Published

2024-08-15

Issue

No. 4 (2024): July-August

Section

РАСТЕНИЕВОДСТВО И СЕЛЕКЦИЯ

How to Cite

Apasheva, L. M., Savransky, V. V., Budnik, M. I., Smurova, L. A., Ovcharenko, E. N., Kasaikina, O. T., Lobanov, A. V., Dyachenko, I. V., Grudzinsky, A. V., Sergeev, S. N., Taraskin, K. A., Barnashova, E. K., & Vertikova, E. A. (2024). BIOLOGICAL EFFECT OF DUAL-FREQUENCY LASER PULSE RADIATION DURING PRE-SOWING TREATMENT OF RICE SEEDS AT EARLY STAGES OF DEVELOPMENT UNDER STRESSFUL ENVIRONMENTAL CONDITIONS. Vestnik of the Russian Agricultural Science, 4, 72-76. https://doi.org/10.31857/S2500208224040132