In theory, yes.
In practice, the possibility of rot is even greater with zero air flow for 12 hours of the day.
If you are going to force your plants with a darkening cloth, you need to build a larger frame, like a small greenhouse around them, to give plenty of space inside. Or just bring them into the garage at night.
I would not do what you are suggesting personally.
stinkyattic Reviewed by stinkyattic on . would this idea of force flowering out side work? i thot that if u put big thick black trash bags over ur plants it will force them to flower. cuz my plants have alrite budds rite now. and theres 2 more weeks to go when we all in are parts harvest. but the climate has been wierd this year plants are getting budd rott easy rite now cuz its been some what cold ans stuff for a while so ide like to hurry up and try the get the full out come of these out door budded ladys. well the help would be... well helpfull so thanx Rating: 5