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GB Sciences Announces Tissue Propagation Breakthrough In Commercial Cannabis Cultivation

LAS VEGAS, Dec. 5, 2017 /PRNewswire/ — GB Sciences, Inc. (OTCQB: GBLX) explains that 100% of the mother plants (a plant that in its vegetative state does not produce flowers but only branches and leaves) in their Las Vegas cultivation facility are now products of the GB Sciences tissue…