Cheers Double Zero and looky what I just found!
http://www.rexresearch.com/hhusb/hh4bot.htm#HH49
It's Hemp Husbandry by Robert A Nelson 2000 and in it's section on sexual expression: 4.9 ~ Sexual Expression
The sexual expression of cannabis is determined by its genetic makeup, and by its metabolic temper, which is regulated by the male enzyme andrase and the female enzyme gynase. Environmental conditions (light, nutrients, soil and water) may suppress the formation of the dominant enzyme, and allow the opposite sex to express itself partially (hermaphroditism) or completely (sex reversal). (71, 72)
There ya go, the first independent confirmation of the fact of total sexual reversal in cannabis.
That's made my month that has and now I want to learn more about the actual mechanism at the genetic level.
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