Use of derivatives of (1-cyanocyclopropyl)phenylphosphinic acid, esters thereof and/or salts thereof for enhancing tolerance in plants to abiotic stress
The invention relates to derivatives of (1-cyanocyclopropyl)phenylphosphinic acid of the formula (I)and to salts thereof, of the formula (II),for enhancing stress tolerance in plants to abiotic stress, preferably to drought stress, especially for enhancing plant growth and/or for increasing plant yield.