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