Abbreviation for Photosynthetic Photon Flux Density. A measurement that quantifies the amount of photosynthetically active light (within the 400-700 nanometer range) that reaches a specific area of a plant’s canopy per second. It is measured in micromoles per square meter per second (µmol/m²/s) and represents the density of light photons available to plants for photosynthesis. In cannabis cultivation, optimizing PPFD ensures that plants receive the right amount of light for healthy growth and maximum yields.
🔊 pee·pee·ef·dee
In the Wild — Example
I mapped my PPFD across the entire canopy and found significant hot spots I wasn't aware of.
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