Luxeon LEDs boost lettuce growth, says study
Rensselaer Polytechnic Institute study demonstrates high yields and nutritional quality of leafy greens with SunPlus LEDs
Results of a horticulture lighting study conducted by the Lighting Enabled Systems and Applications (LESA) at Rensselaer Polytechnic Institute (RPI, Troy, NY), have show that Luxeon SunPlus Lime + Purple and Green + Purple LEDs provide beneficial growth spectra, resulting in high crop yield and high levels of antioxidants important to human health.
The study, using a variety of commercial LEDs, compared the effectiveness of different LEDs on the growth of red lettuce Rouxai. The best combined yield and antioxidant concentrations in the lettuce was observed using Luxeon SunPlus Series LEDs.
"Comparing the growth results using different combinations of LEDs shows that the spectra that performed best for yield (fresh weight), anthocyanin and chlorophyll concentrations were the Luxeon SunPlus Lime + Purple and Green + Purple LEDs from Lumileds," said LESA's Tessa Pocock, a global expert on light and plant physiology.
"Green light is necessary for crop growth and the specific wavelengths within the green region matters." This work is also part of the Greenhouse Lighting and Systems Engineering (GLASE) Consortium operated by LESA and Cornell University and funded by the New York State Energy Research and Development Authority (NYSERDA) that is examining the most effective way to add green light to horticultural fixtures.
"Growers today are experimenting with various LEDs to arrive at the best colour combinations for their crops. The LESA study indicates that such experimentation is paying off because a common, nutrient-rich crop can be produced with excellent yield," said Jennifer Holland, product line director of the Luxeon SunPlus Series. The study demonstrated that a light spectrum like the combination of Luxeon SunPlus Lime and Purple, which contains a certain ratio of royal blue, green, deep red and far red components, is beneficial to growth optimisation.
The 13th CS International conference builds on the strengths of its predecessors, with around 40 leaders from industry and academia delivering presentations that fall within five key themes: Ultrafast Communication; Making Headway with the MicroLED; Taking the Power from Silicon, New Vectors for the VCSEL, and Ultra-wide Bandgap Devices.
Delegates attending these sessions will gain insight into device technology, find out about the current status and the roadmap for the compound semiconductor industry, and discover the latest advances in tools and processes that will drive up fab yields and throughputs.
To discover our sponsorship and exhibition opportunities, contact us at:
Email: info@csinternational.net
Phone: +44 (0)24 7671 8970
To register your place as a delegate, visit: https://csinternational.net/register
Register
