![]() Ep Heuvelink, associate professor, WUR.Īdditionally, the director of Vortus, Barend Löbker, said ““Current practices use HPS technology as the sole source for supplemental lighting in greenhouses and the WUR trial proves this should not be the case. “The initial results of this trial show growers can cultivate tomatoes as effectively with PhysioSpec Greenhouse as you can under HPS, possibly with a better yield, and with shorter stems,” said Dr. The research at Wageningen shows promise for the viability of LEDs in terms of yield, with the added benefit of being more energy efficient than legacy lighting solutions common to greenhouse production today. Yield Increase under PhysioSpec Greenhouse 11% vs. The data for Merlice also showed promising results, yielding comparable amounts of fresh fruit between treatments, further proving full spectrum LEDs as viable replacement for HPS in greenhouse tomato production. Increasing the temperature for PhysioSpec Greenhouse treated plants by 1 degree Celsius made the yield difference even more pronounced, increasing the difference from an average 3% greater versus HPS, to an average of 11%, (figure 2a). ![]() The preliminary data comparing tomato yield under PhysioSpec Greenhouse to HPS shows Tomagino crops under PhysioSpec Greenhouse yielded more fresh fruit. Experiment Layout (Figure 1)Įnvironmental Conditions (Table 1) Species, cultivar: Merlice, Tomagino The experiment, which considered temperature, light quality of PhysioSpec Greenhouse (table 1), HPS and an experimental spectrum, has produced data which shows a difference in yield. Results from a two-factor experiment, comparing the influence of light quality and temperature on two common tomato cultivars (Tomagino and Merlice) analyzed at Wageningen, in collaboration with Fluence and Vortus bv (a leading greenhouse consulting firm), has produced promising results which prove the viability of full spectrum LEDs in greenhouses (see figure 1). The Experiment Fundamental Research Into The Viability Of Full Spectrum LED Lighting In Comparison To Legacy Lighting Systems. The relatively recent introduction of narrow-band LEDs into horticulture has introduced efficiencies into the industry, and the effects of each band of spectrum are being researched and leveraged commercially, but a solid base of foundational research around the effects of a full compilation of spectra is still lacking in scientific literature. ![]() Legacy HID technologies have been used to much commercial success for decades but have also equated into high operational expenditure costs. Which is why scientists at Fluence by OSRAM are collaborating with Wageningen to explore the use of full-spectrum LEDs as supplemental lighting in greenhouses. Since the 19 th century, many factors of greenhouse cultivation have been solved in The Netherlands, due in part to the leadership of Wageningen, the #1 agricultural sciences university and research center in the world. Since greenhouses are one of the most resource, labor, energy and yield efficient ways growers have found to cultivate crops, greenhouses also represent a key area of research for the future of horticulture. ![]() As such, tomato cultivation also represents one of the largest market segments for greenhouse growing. Vine crops, specifically tomatoes, are one of the most heavily produced and consumed crops in the world. ![]()
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