METHOD FOR OBTAINING A GROWTH STIMULANT FOR CONIFEROUS PLANT SEEDS Russian patent published in 2023 - IPC A01N65/06 A01P21/00 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular to biologically active substances with growth-stimulating activity. A method for obtaining a growth stimulant for coniferous plant seeds includes crushing Siberian fir and Siberian spruce greens, adding distilled water and extracting under vacuum of 0.06-0.08 MPa at a temperature of 45±0.5°C for 180-240 min under constant stirring. The obtained extract is filtered and transferred to a sealed container where it may be heated. Distilled water is added to the remaining hot woody herbs and the extraction is repeated under the same conditions. The first portion of the extract is filtered and combined with the second one, followed by concentration by means of the extract liquid part partial evaporation at a temperature of 40-45°C under vacuum of 0.07 MPa for 120 min. The method is performed at the following ratio of initial components, wt.%: Siberian fir wood herbs - 1, Siberian spruce wood herbs - 2, distilled water - 97.

EFFECT: invention provides possibility to simplify the process of obtaining a growth stimulant for coniferous plant seeds without using organic solvents, provide a lower consumption rate to ensure high germination rate and resistance to bacterial and fungal infestations.

1 cl, 3 ex, 1 tbl