New Solar Glass Cranks Up Lettuce Crop Yields By Almost 40%

UbiQD, a US startup, has developed an innovative solar glass infused with quantum dots that significantly enhances greenhouse crop yields, particularly for lettuce. Tested by researchers at the University of California – Davis, the "UbiGro" solar glass demonstrated nearly 40% increases in fresh biomass, leaf area, and root length over a full winter growth period. Additionally, plants grown under this glass showed a 41% improvement in light-use efficiency and higher concentrations of essential nutrients such as nitrogen, phosphorus, potassium, magnesium, zinc, and copper. The glass also altered the spectral red:blue light ratio by 61% without reducing photosynthetically active radiation, optimizing the greenhouse microclimate passively and energy-free. The UC-Davis study, published in Materials Today Sustainability, is the first to evaluate quantum dots integrated with passive solar glass, highlighting the potential of this technology to support climate-smart, resilient food production in greenhouses and vertical farms. UbiQD plans to scale commercial applications of this