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Fig. 1 | Plant Methods

Fig. 1

From: Fluctuating light experiments and semi-automated plant phenotyping enabled by self-built growth racks and simple upgrades to the IMAGING-PAM

Fig. 1

Design of low-cost fluctuating light plant rack. a Front view of the growth rack (120 cm total height). Constant light section at the bottom and fluctuating light section above with a height of 39 cm each. b In both sections two daisy-chained LED grow lights were placed 29.5 cm apart from each other. Additionally, in the FL section, two daisy-chained 1500 W LED panels were installed 21 cm away from each other. An opaque hard-plastic cover divides the FL from the constant light section. c Side-view of the rack. d The 1500 W LED panels are plugged into a controllable outlet power relay module controlled by a micro-controller, which determines when the panels turn on and off (1 min at 900 µmol photons m–2 s–1 and 4 min at 90 µmol photons m–2 s–1). The outlet power relay module and the LED shop lights run on timer-controlled outlets that keep both units on for 12 h

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Plant Methods

ISSN: 1746-4811