The opening and closing of the photoperiod chamber gates and the movement of the wagons was controlled automatically according to the programmed period of light and external temperature. The temperature was controlled in the range of 21°C - 32°C, with an internal optimum control at 27°C for the three treatments. To achieve this, reversible air conditioners (hot/cold) were installed in each photoperiod chamber, and devices that detect temperature were placed both inside and outside of the photoperiod chamber. The automation of the photoperiod chamber allowed the identification of the optimal conditions for induction and flowering.