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

The invention relates to the use of oligosaccharides as stimulators of plant growth in already germinated plants and to a method for obtaining said oligosaccharides. The invention particularly relates to the use of oligosaccharides composed of 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 where the length of said oligosaccharides is between 1 and 6 monosaccharides. The invention particularly relates to the method for obtaining said oligosaccharides, which comprises: (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 of between 120 and 180°C for a duration of between 20 and 40 minutes and leaving to cool to room temperature, and (c) sonicating the resulting composition at a power of between 50 and 60 Hz for a duration of between 5 and 120 minutes at a temperature of between 20 and 25°C.