Methods and devices for dispersion of clusters of somatic plant embryos suspended in a liquid are disclosed. The methods comprise i) subjecting the clusters of embryos to fluid dynamics forces causing axially extensional strain and radially compressional strain and ii) subjecting the clusters of embryos to fluid dynamics forces causing axially compressional strain and radially extensional strain fluid dynamics and iii) repeating said steps in sequence until the individual embryos are separated from each other. The devices may comprise a flow channel including at least one constriction, such that clusters of embryos flowing through the flow channel are first subjected to axially extensional strain and radially compressional strain, and then to axially compressional strain and radially extensional strain from fluid dynamics forces.