PROBLEM TO BE SOLVED: To make it possible to continuously harvest fruit year-round in a single zone without moving plant bodies.SOLUTION: An environment is set to either a first environmental state A in which a day length is a prescribed time (10.5 hours in the case of blueberry) or more and daytime average temperature is less than prescribed temperature (25°C in the case of blueberry) or a second environmental state B in which a day length is less than prescribed time and daytime average temperature is prescribed temperature or more, and both extension of branches and differentiation of flower buds are satisfied. Herein, the daytime average temperature can be made less than a prescribed temperature when a natural day length is a prescribed time or more, and the daytime average temperature can be made a prescribed temperature or more when a natural day length is less than a prescribed time.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】一つの区画で、植物体を移動することなく、果実を連続的に周年収穫できるようにする。【解決手段】日長を所定時間(ブルーベリーの場合10.5時間)以上、且つ、昼間平均気温を所定温度(同じく25℃)未満の第1の環境状態Aとするか、又は、日長を所定時間未満、且つ、昼間平均気温を所定温度以上の第2の環境状態Bとして、枝の伸長と花芽の分化を両立させる。ここで、自然日長が所定時間以上であるときは、昼間平均気温を所定温度未満とし、自然日長が所定時間未満であるときは、昼間平均気温を所定温度以上とすることができる。【選択図】図1
