Maximum Yield USA August 2017 | Page 74

featur spectral light “A FULLER SPECTRUM of light throughout the plants’ life cycle yielded better results than blue or red light alone.” A 2012 study published in Scientia Horticulturae inves- tigated the influences of three different qualities of light on lettuce. They used a red and blue LED; a red, blue, and white LED; and a fluorescent lamp. It was found that the dry weights, crispness, sweetness, and shape of plants treated with the red-blue-white LED and fluorescent lamp were higher than in plants treated with only red-blue LEDs. Once again, a fuller spectrum of light throughout the plants’ life cycle yielded better results than blue or red light alone. As a gardener, it is critical to recognize the importance of lighting in your garden. Outdoors, you as the gardener must consider which plants grow best at your latitude. You also need to consider your garden’s microclimate and how much sun is received at certain times of day. You might find it helpful to shade certain plants at certain times depending on your location and which plants you’re growing. Indoors, you must choose the correct grow lamp for each part of a plant’s life cycle, keeping in mind that blue light will enhance vegetative growth and a fuller spectrum lamp will enhance the overall yield and quality of your harvest. LED in made a Austri We innovate advanced LED light solutions to meet the needs of plants. P4-SERIES » greenhouse proven » energy savings up to 50% » passively cooled » waterproof » perfect light steering LED-luminaires | consulting | research [email protected] | www.sanlight.info 72 feature » up to 3,2 µmol/J efficiency