FIELD: chemistry.
SUBSTANCE: group of inventions relates to application of lipochitooligosaccharide of formula 
for stimulation of plant mycorhisation, where n=2 or 3, R1 represents lipid substituent, which represents fatty acid chain, containing from 16 to 18 carbon atoms, which can be saturated or mono- or di-unsaturated, and R2 represents H or SO3H. Also claimed is mixture of lipochitooligosaccharides for stimulation of arbuscular-mycorhisal plant symbiosis, for stimulation of plant seed germination or for stimulation of plant seed germination or for stimulation of plant root system development and containing in effective amount lipochitooligosaccharide of formula (I), where R2 represents H, and lipochitooligosaccharide of formula (I), where R2 represents SO3H.
EFFECT: group of inventions effectively stimulates plant seed germination, of arbuscular-mycorhisal plant symbiosis and plant root system development.
9 cl, 16 dwg, 9 ex
