[QUOTE=Rusty Trichome;1955561 I'm very doubtful about the assumption that a cannabis plants response to darkness is to increase trichome production. Increased trichome production has nothing to do with darkness, or lack of light. [/QUOTE]

University of Mississippi (where your govt. grows pot) studies recommend harvesting marijuana plants at night....before dawn to be exact for increased potency.

This leads me to believe that an increased dark period or any dark period will increase levels of resin.

I tend to believe the scientists at University of Mississippi. I have read about this technique in many "experts" books. Surely authors of millions selling grow guides can't be wrong.