Researchers Combine Phosphorescent LEDs with Photobiology to Grow Vegetables Year-Round
Researchers from Siberian Federal University and the Institute of Biophysics of the Siberian Branch of the Russian Academy of Sciences report a harvest of vegetables and herbs grown with prototypes of new phosphorescent LED lamps developed by SibFU staff. This breakthrough makes it possible to cultivate vegetables and herbs in every region of Russia, including the Far North. The information was shared with socialbites.ca and confirmed by the Russian Ministry of Education and Science.
Looking ahead, the technology is expected to steadily address the challenge of supplying residents in northern cities with tasty, healthy produce throughout the year by driving down production costs.
“If as many different chemical compositions for phosphorus are tested as possible, a wide range of vegetable and fruit crops can be grown, including varieties uncommon for Siberia,” explained the head of the laboratory overseeing phototrophic biosynthesis. The researcher, Alexander Tikhomirov, spoke with socialbites.ca at the Institute of Biophysics of the Siberian Branch of the Russian Academy of Sciences.
Early work involved chemists synthesizing phosphors, materials applied to glass to create custom light. Subsequent lamp designs were drafted by university experts, and a two‑month study assessed the photobiological efficiency of the lamps with their unique spectral compositions.
Using these phosphorescent LED lamp prototypes with varying spectral traits, researchers completed a full cycle of plant growth—from seed to harvest.
“In the phytolamp field, lettuce is grown entirely with domestic technology. Photobiological studies using lamp prototypes with different spectra helped produce radishes with distinct flavors. Some radishes exhibit a sharper flavor profile and higher vitamin C content, while others are sweeter and more aromatic. This variation is achieved by adjusting the lamp spectrum toward increased red radiation,” stated the director of the Department of Photonics and Laser Technologies at Siberian Federal University. The comments were provided to socialbites.ca.
Currently, a biochemical analysis of the radish crop is planned to verify that the harvested vegetables meet nutritional and vitamin standards. Organoleptic tests will also be carried out to gauge taste and overall appeal to potential buyers.