I heard it will will cause that plants resin productions to increase. This is from a class taught by DJ Shorts and retold by a participant.
Q: 5 days of darkness at the end of flowering to induce greater resin production?
A: Last few days are crucial. At least 24 hours of darkness before harvest. Don't water-->facilitates a faster cure.
When your lights are on your plant is not growing, it is producing, and storing energy, when your lights go off the plant uses its stored energy to grow. Now we all know that light breaks down THC. Therefore, the theory is that if you put the plant in a 48-hour dark period the plant will use its stored energy to produce new THC that has no degradation from the light.
The one thing you can not learn from reading is how to speak plant, the only way to learn this is by doing. When you learn that your plants will be able to talk to you, they will let you know what they want or don't want, and if they are happy or not.
resources is a large part of the equation, but a good grower will maximize what is available. I have seen plenty of low budget grows that produce.
When your lights are on your plant is not growing, it is producing, and storing energy, when your lights go off the plant uses its stored energy to grow. Now we all know that light breaks down THC. Therefore, the theory is that if you put the plant in a 48-hour dark period the plant will use its stored energy to produce new THC that has no degradation from the light.
This is partialy true. Thc is produced in the morning hours right before sun rise. The thc is on the plant to protect it from the damaging uvb rays. So the reason you do a dark period is to simulate a longer moring like state in which the plant is producing more resin then it would typically. I do this method for 48 hours. And no matter how long you do a dark period, you only get 2% extra resin production.