Utilizing Ultraviolet A LEDs for Disinfection and Its Impact on the Growth of Indoor Lettuce

In a recent study conducted at Invernaderos Zapata in Aguascalientes, Mexico, researchers explored the effects of various LED light treatments on the growth of lettuce seedlings (Lactuca sativa ‘Parris Island’). The seedlings were initially grown under controlled greenhouse conditions and exposed to a photoperiod of 21 days with varying temperatures. Following this initial phase, seedlings were subjected to three distinct lighting treatments: Mode 1 (WBUVA-P) featuring White, Blue, and UVA light with intermittent radiation, Mode 2 (WBUVA-C) involving continuous exposure, and a Control Mode (WB) with only White and Blue light. The experiment focused on evaluating growth and physiological response parameters, such as chlorophyll content, fresh weight, and dry weight, over a 30-day period. Additionally, bacteriological assessments were performed to quantify microbial levels, ensuring the safety and quality of the lettuce produced. Statistical analyses were utilized to determine the effectiveness of the light treatments, with results expected to innovate further strategies in plant cultivation techniques.

Utilizing Ultraviolet A LEDs for Disinfection and Its Impact on the Growth of Indoor Lettuce

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