PROBLEM TO BE SOLVED: To provide a method for growing a Shiitake (Lentinus edodes) mushroom bed, capable of solving such problems that a considerable long time is required as a period of culture and therefore turnover efficiency of a cultivation installation is deteriorated, because the culture in conventional cultivation of the Shiitake mushroom bed is conducted until primodia from which mushrooms are germinated and grown on a surface of the mushroom bed are formed.SOLUTION: In this method, two kinds of mushroom beds comprising a mushroom bed of a transplanting side and a mushroom bed of a transplanted side are prepared, then cultivation of the mushroom bed of the transplanting side is precedently started, and the mushroom bed is brought into a state of any one of stages from a stage of forming origins of the primodia to a stage of forming young hymenocarps. On the other hand, cultivation of the mushroom bed of the transplanted side is started later than that of the mushroom bed of the transplanting side. When the mushroom bed of the transplanted side reaches near a finish of a stage of primary spread of hyphae, a tissue of the mushroom bed of the transplanting side in a stage of any one of the precedent stages is taken out, then the tissue is planted in the mushroom bed of the transplanted side, and further hyphae on the transplanting side and hyphae on the transplanted side are together fused and brought into a state in which the fused hyphae are supplied with water and nutriment, so that the mushrooms are matured from the taken-out tissue of the mushroom bed.COPYRIGHT: (C)2007,JPO&INPIT【課題】しいたけ菌床栽培は菌床表面にきのこの発芽生育が可能である原基が形成されるまで培養を行うため、培養期間にかなり長い時間を要し、栽培施設の回転効率を悪化させている。【解決手段】移植する側の菌床と移植される側の菌床との二種類の菌床を用意し、移植する側の菌床の栽培を先行して開始し、当該菌床を原基のもとが形成されるステージから幼子実体が形成されるステージ迄のいずれかの状態とする。一方、移植される側の菌床を上記移植する側の菌床より遅らせて栽培を開始し、その後移植される側の菌床が菌糸の一次蔓延するステージの終了付近となったとき、上記先行したいずれかのステージの移植する側の菌床の組織を取り出し、その組織を移植される側の菌床に植え込み、移植する側の菌糸と移植される側の菌糸同士が融合されて水分や栄養分が供給され得る状態とし、上記取り出した菌床の組織からきのこを熟成させ