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What unit of photometry is used to assess plant growth? Is there a catalog that lists plants and the required light exposure? I'm looking at more detailed indicators than "a lot of light" or "not too much light".

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    This question appears to be off-topic because it is not a topic covered by this site (see the help center). I would ask it at biology.stackexchange.com.
    – J. Musser
    Jun 29, 2014 at 3:56

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