Methods and arrangements for undertaking delayed delivery of digital content. The blister package includes a substantially paperboard substrate, a coating having moisture vapor transmission barrier properties and heat seal capabilities and a plastic blister attached to at least one side of the substrate over a coated portion of the substrate by a heat seal, to create an enclosed pocket isolated from the surrounding environment, in which to house a product. The compositions also are useful for therapeutic applications, including neutron capture therapy. Some embodiments of the methods of the invention yield at least 100% more cotyledonary somatic embryos than an identical method for producing conifer somatic embryos that does not utilize a synchronization medium comprising an absorbent composition and at least one synchronization agent selected from the group consisting of abscisic acid and a gibberellin.