A method of finding a compound which increases the tolerance to abiotic stress factors in plants, where the increase in the transcription or expression of individual plant-endogenous genes is regarded as proof for the induction. Independent claims are: (1) a method of increasing the yield in crops of useful plants comprises treating the useful plants by seed dressing, by foliar sprays or by soil application, with the compound which increases the tolerance to abiotic stress factors in plants or compounds which are already known as safeners in crop protection； (2) a method of extending the vegetation period in crops of useful plants, which comprises treating the useful plants by seed dressing, by foliar sprays or by soil application, with the compound which increases the tolerance to abiotic stress factors in plants or compounds which are already known as safeners in crop protection； (3) a method of making possible an earlier sowing date in crops of useful plants, which comprises treating the useful plants by seed dressing, by foliar sprays or by soil application, with the compound which increases the tolerance to abiotic stress factors in plants or compounds which are already known as safeners in crop protection； and (4) a method of increasing the quality in crops of useful plants, which comprises treating the useful plants by seed dressing, by foliar sprays or by soil application, with the compound which increases the tolerance to abiotic stress factors in plants or compounds which are already known as safeners in crop protection. ACTIVITY : Plant Protectant. MECHANISM OF ACTION : None given.본 발명은 식물-내인성 단백질의 발현을 증가시킴으로써 식물에 작용하는 비생물적 스트레스 인자, 예를 들어, 온도 (예: 냉기, 결빙 또는 열), 물 (예: 건조, 가뭄 또는 산소결핍), 또는 화학적 로드 (load) (예: 광물 염, 중금속, 기체성 유해 물질의 부족 또는 과함)에 대한 식물의 내성을 증가시키는 화합물을 검색하는 방법 및 비생물적 스트레스에 대한 식물에서의 내성을 증가시키기 위한 이들 화합물의 용도에 관한 것이다.
