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Light: Difference between revisions
→Ideal light conditions
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=== Optimum light intensity===
In this instance, "optimum light intensity" refers to the amount of light that provides the maximum yield from the cultivar
Yield is linear with ppfd to around 1500 - 2000 μmol/s<ref>Cannabis Yield, Potency, and Leaf Photosynthesis Respond Differently to Increasing Light Levels in an Indoor Environment (Rodriguez-Morrison, 2021) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8144505/</ref>
=== Upper limit of light intensity ===
The theoretical upper limit that a plant can tolerate before experiencing symptoms of poor health
Maximum ppfd cannabis can tolerate is around 2000 - 2500 μmol/s in perfect conditions<ref> Light dependence of photosynthesis and water vapor exchange... (Chandra, 2015)- https://doi.org/10.1016/j.jarmap.2015.03.002</ref><ref> Cannabis business times Oct, 2021 https://www.cannabisbusinesstimes.com/article/growing-under-high-light-intensities-lighting-report/</ref> and a DLI of around 40 - 60 moles
Above (500?) μmol/s supplemental co2 is required [citation required]
Meta-analysis of plant morphology to light intensity<ref>A meta-analysis of plant responses to light intensity for 70 traits ranging from molecules to whole plant performance (Poorter, 2019) https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.15754</ref>
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