Keyword: «dose»

The article deals with the issues of toxicity, the relationship of the structure and composition of organic substances with their physiological effect. The analysis of the data of a sociological survey is given, showing the degree of awareness of students about the danger of the influence of household chemicals on the human body. The article is written on the basis of the conducted experiments, the mechanism of action of poisons and the essence of the antidote effect are revealed.

Optical radiation is one of the types of pre-sowing treatment of seeds, it allows in the early stages to start the successful growth of the future plant, by activating the physical and biochemical processes occurring in the seed. The article presents the results of studies of the effect of the dose of ultraviolet radiation on the productive qualities of barley seeds of the «Academician» variety. Research in this direction is relevant since pre-sowing treatment of seeds significantly improves the quality of the crop.