Abstract: The present invention relates to a new class of plant growth regulators. In particular, the invention relates to fused azepinone derivative of general formula (I) or an agriculturally acceptable salt thereof wherein X is CO2R2 or H; Y is OH; NHNR3R4, NHNHC(?Z)NR5R6 or NHNHC(?Z)CR7R8R9; or X and Y together with the two carbon atoms to which they are attached form a ring of formula (A) and a method for treatment of plants with such compounds in order to induce growth regulating responses.

Abstract: The present invention relates to the use of a compound for plant growth regulation, preferably by application of the compound to plants, to the seeds from which they grow or to the locus in which they grow, in an effective plant growth regulating, preferably non-phytotoxic amount, which compound is a 3,4-disubstituted maleimide derivative of formula (I) or an agriculturally acceptable salt thereof, wherein: X is aryl or heteroaryl which groups are unsubstituted or substituted; Y is NH or a covalent bond; and Z is aryl or heteroaryl which groups are unsubstituted or substituted and a method for treatment of plants with such compounds in order to induce growth regulating responses.

Abstract: The present invention relates to a new class of plant growth regulators. In particular, the invention relates to fused azepinone derivative of general formula (I) or an agriculturally acceptable salt thereof wherein X is CO2R2 or H; Y is OH; NHNR3R4, NHNHC(=Z)NR5R6 or NHNHC(=Z)CR7R8R9; or X and Y together with the two carbon atoms to which they are attached form a ring of formula (A) and a method for treatment of plants with such compounds in order to induce growth regulating responses.

Abstract: The present invention relates to the use of a compound for plant growth regulation, preferably by application of the compound to plants, to the seeds from which they grow or to the locus in which they grow, in an effective plant growth regulating, preferably non-phytotoxic amount, which compound is an indolinone derivative of formula (I) or an agriculturally acceptable salt thereof: wherein: X is NNHR2, NNHC(?S)NH—(C1-C6)alkyl or a formula (A): in which the point of attachment is the carbon atom marked 2, and a method for treatment of plants with such compounds in order to induce growth regulating responses.