M2?

Discussion in 'First Time Marijuana Growers' started by pungent, Sep 15, 2007.

  1. what does it mean when a seed bank says a strain yields 400-500 M2? i was pretty sure 400-500 was grams, but i have no idea what M2 means.
     
  2. grams per square meter
     
  3. What atom said ^^^
     
  4. >> light bulb clicks on <<
     

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