Fecha de publicación: 04/07/2012 Fuente: WIPO "tobacco agriculture" The invention provides a preparation method for a novel tobacco seed germination bed. According to the method, high water absorption resin poly(2-acryloylamino-2-methylpropanesulfonic acid) (PAMPS) powder absorbs water in a culture dish to prepare the novel tobacco seed germination bed. The novel tobacco seed germination bed prepared by the method of the present invention has the following characteristics that: the bed shows the hydrogel state; the tobacco seeds can be directly placed on the gelatinous germination bed, the seeds directly absorb the water from the hydrogel during the whole germination process, such that the regular water supplement is not required; the germination bed of the present invention has good water retention property, such that the moisture does not easily volatile, and the uniform germination condition can be provided.