A light dosing system for promoting preferred characteristics in plants, the light dosing system configured to direct light onto a target area upon which the plant resides, the light dosing system including one or more light emitters positioned above the target area, a means for controlling one or more characteristics of the light emitted by the light emitters, a conveyor configured to alter the relative positions of the light emitters and the target area, and a lighting controller configured to read a media having a predefined dosage regime stored thereon for promoting the preferred characteristics of the plant, characterized in that the lighting controller is configured to alter one or more characteristics of the light emitted by the, or each, of the one or more light emitters onto the target area in accordance with the predefined dosage regime.
