Growth-regulating aqueous compositions

The present invention relates to aqueous homogeneous compositions in the form of active compound concentrates for regulating plant growth, and to the use of these active compound concentrates for preparing aqueous spray solutions having increased activity. An aqueous homogeneous composition of an active compound concentrate for regulating plant growth having an active compound concentration of from 20% to 70%, wich comprises (a) one active compound of the formula I, R1 is C1-C4-alkyl; R2 is C1-C4-alkyl; or R1 and R2 together are a radical -(CH2)5, or -(CH2)2-O-(CH2)2-; X is chloride, bromide, sulfate, C1-C4-alkyl-sulfate or C1-C4-alkylsulfonate; and (b) one or two auxiliaries selected from the group consisting of (b1) alkylglucosides of (b2) alkylsulfonates or alkylarylsulfonates of the formulat II: R3-SO3-M(+,++), where R3 is an aliphatic group having 6-17 carbon atoms, C6-C16-alkylphenoxypolyethoxy, C1-C12-alkylphenyl, C1-C16-alkylnaphthyl and M is ammonium, sodium, potassium, magnesium or calcium.