PROBLEM TO BE SOLVED: To effectively regulate temperature of a plurality of housed objects while housing these housed objects.SOLUTION: A temperature regulator 4 of a cultivation container 5 has a main body part 11 that includes housing parts 11a-11c which are formed in a shape recessed toward a heat conductor 14 so as to surround an outer shape of the cultivation container 5, and a first heat source housing part 11d which is formed in a shape recessed toward the heat conductor 14, and can house a first heat source 15. The heat conductor 14 is exposed to a first heat source housing space Rd in the first heat source housing part 11d. A portion of the heat conductor 14 exposed to the first heat source housing space Rd is connected to the first heat source 15.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】複数の被収容物を収容しつつ、これらの被収容物の温度を効率よく調節する。【解決手段】栽培容器5の温度調節装置4であって、本体部11には、栽培容器5の外形を囲むように熱伝導体14に向かって凹状に窪む形状に形成される収容部11a~11cと、熱伝導体14に向かって凹状に窪む形状に形成されるとともに第一熱源15を収容可能な第一熱源用収容部11dとが設けられている。熱伝導体14は、第一熱源用収容部11d内の第一熱源用収容空間Rdに露出している。熱伝導体14の第一熱源用収容空間Rdに露出する部位は、第一熱源15に接続されている。【選択図】図3