Abstract: A grafting device including a rootstock holding unit and a scion holding unit both provided in a main body and relatively movable in a predetermined direction, at least one of the rootstock holding unit and the scion holding unit includes: a hand module including: a grip portion configured to be openable and closable for gripping a stem of a plant; reciprocating portions an operating rod and a slide plate provided between the grip portion and the main body and capable of reciprocating; a motion converting portion configured to convert reciprocation of the reciprocating portion into an opening/closing motion of the grip portion; and a biasing means configured to bias the reciprocating portion in any one direction of the reciprocating movement; and a drive means provided in the main body and configured to drive the reciprocating portion in a direction opposite to a biasing direction by the biasing means.

Abstract: A long base sheet is a thin paper like toilet paper, made of water-decomposable paper, and is supplied from a base sheet supply section. A water-soluble adhesive is applied to a surface of the sheet at a predetermined interval in an adhesive applying section. Multiple seeds are placed on the surface of the sheet, and then the sheet is put up to non-adhering remove seeds. Thereafter, in a base sheet transportation/seed pressing section, the sheet is pressed by a pair of rollers and softer than the seed, producing a seeded paper. In the seeded paper, concave portions are on the long base sheet, and have a plane shape approximately equal to a shape of the target seed and depth of one tenth to equal to a height of the target seed, and the target seed adheres to an inside area of each of the concave portions by the water-soluble adhesive.