Light-emitting diode (LED) has been used as an efficient light source for plant production in controlled environment agriculture (CEA) such as a greenhouse, indoor, and vertical farm. This presentation will provide the effect of specific LED light (SL) on the efficacy of LEDs and physiological and biological changes in several microgreens, leafy vegetables, and tomatoes. The SL with shorter blue and/or green LEDs improved the total yield and bioactive compounds. In addition, light and energy use efficiencies were higher in the SLs than in the normal type of LEDs. It suggests that the SLs could be preferably used in CEA.

Ki-Ho Son

Prof. Ki-Ho Son, who holds a Ph.D. in Horticulture, is an associate professor in the Division of Horticultural Science at Gyeongsang National University in South Korea. He has been collaborating with the LED Business team at Samsung Electronics for several years, conducting research on the correlation between LED spectrum and plant physiology. As a specialist in vegetable science, protected horticulture, and vertical farms, he continues to study the optimal environment for plant growth, particularly in greenhouses or vertical farms, and the corresponding physiological responses of the plants.