The influence of growth stimulants on the seed germination and seedling safety of the main forest species

The influence of the growth stimulants different in the active substance on the seed germinating ability of Scotch pine (Pinus silvestris L.), Siberian larch (Larix sibirica Ledeb.), Siberian fir tree (Picea obovata Ledeb.)and seedling safety is studied. It is determined that the presowing treatment of the seeds by the growth stimulants that contain the active substance: polyaminesaccharides, polyunsaturated fatty acids that are the part of arachidonic acid and also indole-3 acetic acid, allows to improve the seed germinating ability from 15-33% in comparison with the control.