FIELD: agriculture.
SUBSTANCE: air-dried raw material from terraneous parts of Echinacea purpurea plants is extracted with 90-95 % ethanol in ethanol/raw material ratio of 59-61:1, respectively. Extract is acidified with acid to obtain pH not more than 5.0. Extract is purified with polymeric sorbent and concentrated by vaporization. Obtained plant growth controlling agent contains chicory, chlorogenic and caffeic acids. Growth-controlling preparation contains growth-controlling complex in amount of 0.009-0.11 mg/ml and oxyethylated alkylphenol surfactant in ratio of 1:1. Claimed complex is useful in plant and scrub treatment and in seed soak.
EFFECT: preparation useful as immunomodulator and antistress agent.
6 cl, 6 ex
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