| abstract |
The invention relates to a method for delaying plant growth. According to the invention, an effective amount of a compound of the formula ## STR3 ## which is sufficient for delaying plant growth, is applied to the plant, in which, for example, R 1 and R 2 independently of one another represent an optionally substituted carbocyclic or heterocyclic ring system and the like. al .; Y1 and Y2 independently of one another an optionally substituted heteroatom; Y3 and Y4 are each independently hydrogen, an optionally substituted heteroatom or a substituted carbon atom, an optionally substituted branched or straight chain having two or more carbon atoms or heteroatoms in any combination, halogen, alkylcarbonyl, formyl and. al .; Y5 and Y6 independently of each other oxygen or sulfur. formula |