The invention relates to the use of Bixafen for increasing the resistance of plants, particularly transgenic plants, to abiotic stress factors, wherein Bixafen is applied at a rate of from 0.01 to 3kg/ha based on the pure Bixafen. Also disclosed is a method for treating plants or parts of plants with Bixafen for increasing resistance to abiotic stress factors such as drought, temperature and osmotic stress.