The present invention provides a method for improving traits in a plant, like e.g. improving yield-related traits like number of flowers, number of siliques, seed yield, stein growth in a plant, the method comprising disruption of endogenous ROCK1 gene in a plant cell, wherein said disruption inhibits expression and/or activity of a product of said endogenous ROCK1 gene compared to a corresponding control plant cell lacking such a disruption.
