In this communication we present the data about the effects of natural growth regulators on the content of pigments in leaves of fructifying pear trees, considering their content as indicators of plants productivity. Investigations have shown the high responsiveness of pear trees on the exogenous treatments with the solution of Verbascoside, isolated from the plants of Verbascum densiflorum bertol, and Reglalg, extracted from Spirogira sp. algal biomass. The stimulatory effects of both products on the pigment fund of pear leaves were revealed. We consider that increased pigment content in leaves contributed to a better realization of the trees yield potential.