OLIGOSACCHARIDES AS STIMULATORS OF PLANT GROWTH IN ALREADY GERMINATED PLANTS AND METHOD FOR OBTAINING SAID OLIGOSACCHARIDES

The invention relates to using oligosaccharides as stimulators of plant growth in already germinated plants and methods for obtaining said oligosaccharides. The invention particularly relates to using oligosaccharides comprising N-acetyl glucosamine and glucosamine as stimulators of plant growth in already germinated plants, where the percentage of N-acetyl glucosamine in said oligosaccharides is 100% and the length of said oligosaccharides is between 1 and 6 monosaccharides. The invention particularly relates to methods for obtaining said oligosaccharides, comprising: (a) resuspending chitin with a percentage of N-acetyl glucosamine of between 85% and 100% in water, (b) heating the resulting composition to a temperature between 120 and 180° C. for a duration between 20 and 40 minutes and leaving to cool to room temperature, and (c) sonicating the resulting composition at a power between 50 and 60 Hz for a duration between 5 and 120 minutes at a temperature between 20 and 25° C.