The influence of the Reglalg biostimulator and micro elements on the photosynthetic productivity of native and foreign plum varieties

The research carried out with plum plants under controlled conditions (lysimeters, Institute of Genetics, Physiology and Plant Protection) with varieties of local and foreign selection in 2023 revealed the stimulatory effect as a result of treatments with solutions containing Reglalg and a mixture of trace elements - B, Zn, Mn, Mo regarding the formation and activity of the photosynthetic apparatus that contributed to the realization of the production potential of plants. The work in this direction with plum plants for six years aims to highlight the most informative indicators of the pigment background and photosynthetic activity of different plum varieties under the exogenous influence of biologically active substances and microelements.