The present invention concerns a method for improving the growth characteristics of plants by increasing expression of at least part of a Leucine Rich Repeat Receptor-Like Kinase (RKS11, RKS4 or an orthologue of these). One such method comprises introducing into a plant a nucleic acid encoding at least part of a Leucine Rich Repeat Receptor-Like Kinase (RKS11 or RKS4 or an orthologue thereof). The invention also relates to transgenic plants having introduced therein a nucleic acid or variant thereof encoding at least part of a Leucine Rich Repeat Receptor-Like Kinase (RKS11 or RKS4 or an orthologue thereof), which plants have improved growth characteristics relative to corresponding wild type plants. The present invention also concerns constructs useful in the methods of the invention.