Influence of LEDs on Ligth Compensation Point of L. Solanum Tuberosum Aeroponic Plantlets

While aeroponic systems have shown promise for seed potato production, light LED lighting, especially lights, remains largely unexplored. This study, therefore, aimed to uncover potential by determining the light compensation point (Ic) required for potato growth under LED lighting. Consequently, it could contribute to advancing the field of aeroponic farming, offering a promising future for sustainable agriculture. The light compensation point is the irradiance where photosynthesis equals respiration, and it varies by species and environment. Selecting an appropriate light intensity is crucial for crop productivity and cost-efficiency. Limited research on potato cultivation under LED lighting is available, especially concerning plant photosynthetic rates. This study evaluated the effects of LEDs on potato plants, ocusing on CO2 exchange and biomass production. Our results revealed valuable insights for aeroponic farming. For instance, we discovered that blue light was the most efficient for CO2 absorption, with an Ic of ~50 µmol m⁻² s⁻¹, while red light required 67 µmol m⁻² s⁻¹. White and mixed lights exhibited higher Ic values (84.6 and 108.5 µmol m⁻² s⁻¹, respectively). Plant exposure to blue light develops robust structures. Still, they had lower biomass than red treatments, underscoring the need for further optimization of LED spectra in aeroponic farming systems, thereby enhancing crop productivity and cost-efficiency.