EFFECT OF PROTECTIVE FUNCTION OF VERMICULTURE PRODUCTS ON MORPHOLOGICAL AND PHYSIOLOGICAL CHARACTERISTICS OF GROWTH AND DEVELOPMENT OF PLANTS IN THE CONDITION OF ABIOTIC FACTORS

摘要

The effect of? MgSO 4 ?on morphometric specifics of the? Salix alba ?L., which characterized by high rates of growth and development?is?investigated. Mg 2+? was added in the form of? MgSO 4* 3H 2 O ?at a concentration of 2.5 g/l considering of salt water content in the research solutions with? S. alba ?L. and??combined with plant growth regulator (GR) of natural origin Humisol. These studies have shown toxicity of MgSO 4 ?at a concentration of 2.5 g/l during all?the?period of growth and development.?So,? MgSO 4 ?had toxic effect on plant growth and development within whole period of observation. We registered negative correlation (R = - 0.99) between toxic properties of salt and the age of the studied plants (for example, the growth rate of shoots and leaf blades by? S. alba ?L.) and positive correlation (R = 0.99) while studied the root growth rate, which was caused by the direct contact of rhizosphere and negative stressors. The GR Humisol accelerated the rate of physiological processes of growth and development of shoots and roots in 2-3 times, but the growth of leaf blade was not activated regards the control.?The combined effect of magnesium salts and GR levelled toxic concentrations of magnesium sulphate were accelerated plant growth or stimulated growth up to control values, promoted adaptation mechanisms of plants and provided a protective role against excessive salinity. We suggested using the Humisol as a natural product, vermiculture, adaptogene, protector,?and?fertilizer agent of natural origin, which provides for biota to consume the environmental services without damage to the environment under conditions of excessive pressure of salt stress on plant organism.