Int'l research targets light spectrum impact on plant growth

The study, released by Dr. Ki-Ho, Son of the Department of Horticultural Science, and Dr. Kye Man Cho of the Department of Food Science and their Gyeongsang National University research team in South Korea, examines the effects of various horticultural light sources on overall plant growth.

"Vertical farming, one of the best solutions for controlled environment agriculture, makes possible the perfect regulation and control of indoor environmental factors including temperature, humidity, CO₂ concentration, and lighting," Dr. Son says. "It further diminishes seasonal and climate limitations in farming, thus making mass production of high-quality food possible. Since all lighting in a vertical farm environment is contingent on artificial lamps, innovative lighting technology is imperative for successful vertical farming."

Son goes on to say that lighting that had been used for horticulture has room for improvement in terms of heat release and life span.

"That is why LED lighting is mainly being used in innovative vertical farms these days. Especially, full-spectrum LED, which is a combination of blue, red, and green wavelengths, is becoming more popular than traditional narrow spectrum LED with only blue and red. This project was conducted to identify the most suitable light spectrum for successful vertical farms," he says.

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Source: Greenhouse Grower