USE OF NON-PROLINE CYCLIC AMINO ACIDS TO INCREASE THE TOLERANCE OF PLANTS TO CONDITIONS OF OSMOTIC STRESS

The present invention relates to the use of non-proline cyclic amino acids of general formula (I), wherein n, X, Y and Z have the meaning indicated in the description, to increase the tolerance of plants to conditions of osmotic stress resulting from a lack of water in the environment. The non-proline amino acids used in the invention are of natural origin and are much more effective than other known amino acids used for the same purpose. This invention can therefore be considered very useful for preventing economic losses caused by a reduction in yield in agricultural crops.