The invention relates to a process for the production of granulated seed comprising seed kernels which are coated with a coating layer, the process comprising the following steps: providing seed kernels, applying a binder to the seed kernels, giving rise to seed kernels coated with a binder, and applying a coating composition comprising silica to the seed kernels coated with binder, giving rise to seed kernels coated with a coating layer. The invention furthermore relates to the use of silica as component of the coating layer of granulated seed for improving the germination ability of the seed. The invention furthermore relates to granulated seed, comprising seed kernels coated with a coating layer, characterized in that the coating layer comprises silica and that the silica is distributed within the entire coating layer.本發明關於用於製造包含塗有塗層之種仁的經粒化種子之方法,該方法包含下列步驟:提供種仁,將黏合劑施於種仁,產生塗有黏合劑之種仁,及將包含二氧化矽的塗覆組成物施於塗有黏合劑之種仁,以產生塗有塗層之種仁。本發明進一步關於二氧化矽作為經粒化種子之塗層組分的用途,以改善該種子之發芽能力。本發明進一步關於經粒化種子,其包含塗有塗層之種仁,其特徵在於該塗層包含二氧化矽,且該二氧化矽係分佈在整個塗層內。