Effect of Laser Irradiation of Seeds on Growth Parameters Of Dracocephalum moldavica L.

Abstract

The work analyzes the effect of laser irradiation on the similarity and growth indicators of the serpentine. The effect of laser irradiation of seeds with red and blue light on the growth parameters of Dracocephalum moldavica L. has been determined. The experiments used LED lasers characterized by coherent monochromatic radiation of red (635 nM) and blue (405 nM) light with a radiation capacity of 100 mW. As a result of the research, it was found that laser irradiation of seeds increased germination depending on the regime by 18.1-36.4 % compared to non-irradiated seeds. In 1.7-3.4 rad increased the number of plants that survived in experimental variants compared to control. Plants grown from irradiated seeds were characterized by accelerated by 51.08-88.29% growth of root sittings and increased content of chlorophyll a and chlorophyll b. Irradiation of seeds by a blue laser with an energy of 25.05 mJ/cm2 and coьplex irradiation by red rays with energy of 51.10 mJ/cm2 and blue rays with energy of 25.05 mJ/cm2 caused an increase in chlorophyll a by 135.7-1328.5 % and chlorophyll b by 84.7-14.8 % compared to control. This may indicate a significant activation of light receptor systems of the studied species.