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Definition of Light-and-dark bottle technique

Light-and-dark bottle technique Definition from Society & Culture Dictionaries & Glossaries
Environmental Engineering (English ver.)
A method used to determine the extent of Photosynthesis in an aquatic Ecosystem. Duplicate portions of a water sample are collected. One portion is Incubated in a clear bottle, and the other is incubated in a dark, light-impermeable bottle. Following incubation for a prescribed time period, the net uptake of carbon dioxide in each is measured and compared.