The invention provides methods for improving the germination of manufactured seeds. The methods comprise the step of inserting a plant embryo having a shoot end into a shoot restraint comprising an interior surface, wherein at least one of the interior surface of the shoot restraint and the plant embryo is contacted with a hydrated gel before or after inserting the plant embryo into the shoot restraint. The hydrated gel may comprise nutrients for the plant embryo. Another aspect of the invention provides manufactured seeds comprising a hydrated gel disposed between the shoot restraint and the plant embryo.