Can a high red: Far red ratio replace temperature-induced inflorescence development in Phalaenopsis?

•Cooling to 19°C stimulates multiple inflorescences, regardless of the light spectrum.•A high R:FR ratio increases the percentage of multiple inflorescences, regardless of the temperature.•Cooling to 19°C followed by 22°C increases the percentage of multiple inflorescences, except under relatively low R:FR ratio’s.•Temperature and/or light spectrum is more important during the second than the first part of induction.