Better spectrum, better quality

20% more cannabinoids under SANlight light spectrum

Our research partner Research a Plant has grown the strain “Cannatonic” on behalf of SANlight and BIONOVA. The aim of the experiment was to investigate different growth and flowering behavior under the same amount of light, but under different light spectra.

Experiment setup:

• In one experimental room, one plant table with 64 plants each was illuminated by SANlight Led Grow Lights and one table was illuminated by Gavita 600W HPS lights.
• The plants were exposed to identical climatic conditions and were supplied with the same fertilizer (Bio Nova). Bio Nova Coco Mix plus served as substrate.
• The cuttings were taken from the same mother plants and planted in 9l pots. Watering was done via a drip irrigation system.

Experiment parameters:

Time period                                              PPFD for HPS and LED       Power HPS          Power SANlight LED       Day temperature          daily relative humidity            PH Nl.         EC Nl.

• Vegetative phase day 1 – 14                      280µmol/m2/s                    1292W                             752W                            24°C                                       75%                              6,0                0,8
• Vegetative phase day 15 – 21                    350µmol/m2/s                    1601W                             940W                            25°C                                       70%                              6,0                1,0
• Generative phase day 22 – 36                    450µmol/m2/s                    2013W                           1208W                            26°C                                       65%                              5,8                1,3
• Generative phase day 37 – 85                    600µmol/m2/s                    2684W                           1610W                            28°C                                       60%                              5,8                1,4

Result:

Despite identical light intensity, the plants under SANlight LED developed 30% more flower weight. The cannabinoid content of the plants grown under LED was more than 20% higher than in the comparison plants under HPS lights. In addition, the terpenes showed a significant difference in terpene profile. For a more detailed insight, we have attached the analyses from the laboratory below.