Method and receptacles for growing plants, particularly tissue culture plant precursors

Abstract From the Canadian patent

A method of growing tissue culture callus on a nutrient substrate comprises the steps of preparing a semi-solid slab of the nutrient substrate and placing it on top of a honeycomb-like forming plate which defines a, plurality of hollow passages surrounded by thin walls. A series of the callus is deployed on the slab so that, each callus is located in alignment with one of the passages. The callus are allowed to grow to a desired extent under conventional conditions. A pneumatic pressure is then applied to the slab so that it becomes pushed through and sliced by the walls of the forming plate into a respective number of blocks each carrying a, single plant, and ejected out of the bottom side …