Abstract
Two methods of coating seeds were tested in order to improve the quality of mechanical seeding. In the first paper, suitable methods and materials for the coat were investigated. Fluidizing method was found to be better than rotating method for the coating. When excess water existed in bed soil, germination rate fell in some species. The reason was thought that the coated layer became muddy because of its hydrophilic characteristics. When materials with hydrophobic radical were added, large cracks occured in the coated layer and brought a stable germination. In the second paper, coating mechanism was elucidated. The third paper dealt with the drying conditions of coated seeds, which were processed by fluidized drying equipment, and the germinability of coated seeds after storing under various conditions.
