In article wildbilly-A7A8AB.23214625062013@c-61-68-245-
199.per.connect.net.au, says...

Yield showed that it worked, but they don't know if there is an Achilles
heel to the plant, yet. Yield is important, resistance to mold and
mildew is important, cultivation parameters are important. Before you
send a plant to market, it's important to know all of the above, and
more.

This might be of interest and germane.


http://www.cosmosmagazine.com/features/black-harvest/