Adaptogenic effect of low-intensity millimeter-wave electromagnetic radiation on Glycine Max L. under osmotic stress

Abstract

This study is devoted to identification of the adaptogenic effect of low-intensity electromagnetic radiation (EMR) of the millimeter (MM) range (wavelength – 7.1 mm, radiation frequency – 42.3 GHz, radiation power flux density – 0.1 mW/cm2) on seed germination and growth processes of Glycine max L., cultivar Apollo under osmotic stress. The stimulating effect of millimeter-wave electromagnetic radiation on seed germination, morphometric parameters (height of the aerial part, length of the main root, accumulation of wet and dry matter mass) in plants of Glycine max L., cultivar Apollo has been revealed. Thus, it has been shown that pre-sowing irradiation with this physical factor increases the salt tolerance of Glycine max L., cv. Apollo. Germination energy and laboratory germination increase on average by 8–12% at simulated chloride salinity in the experimental variants, compared to the control ones. The positive effect of low-intensity EMR of the MM range on the morphometric parameters of Glycine max L. was established, while the shoot height significantly increased by 14%, the length of the main root – by 18%, the weight of the wet matter – by 5–13% in the experimental plants compared to control conditions of chloride salinization.