Originally Posted by blackg0d
Our dep houses just started showing nanners unfortunately. Were at week 4/5 of flower. We have been pretty damn on top of depping on time, although we have been doing it manually. We've never depped more than 5 minutes off of 11:45/12:15 consistently, and 95% of the time it's within less than a minute. We have had tiny light leaks in the tarp, but nothing that actually makes the plant visible or light up. We get lots of holes from our shitty dep situation, and patch them as soon as we see them. We check underneath the tarp every time to make sure its dark in there and it is absolutely DARK.
Where we are, sunrise is around 6am. We dep at 5:45pm and then take the tarps back off once it's completely dark outside, to let the greenhouses ventilate and experience natural darkness and sunrise. We have intake, exhaust, and oscillating fans to ventilate the houses for the 4 hours they are covered. One of my friends claims that he always has problems doing it this way, because he thinks the shift from complete darkness to moonlight is too severe. Which makes sense to me considering on bright nights there's a big difference in darkness under the tarp and darkness in full moonlight. Can anyone speak on this?
Bummer dude. No, light deppen does not cause hermies and your tarp on-5:45pm/tarp off after dark schedule is right on the money. Doing the dep manually has nothing to with anything causing hermies either. Hermies have been known to happen if the plant is repeatedly stressed i.e.-frequent under watering, drastic temp changes etc. Ive also suspected high ppm counts caused by some of the more potent chemical nutrients available. Just a suspicion tho. Sometimes the problem is as simple as a missed male- from seed or clone. Check the plant to determine if in fact both male and female characteristics exist at the same time.
A few other and more common hermie causes IMO are inferior seeds caused by poor breeding techniques and feminized seeds which have always been notorious for throwing nanners.
Actually, the notion that your greenhouse has to be absolutely dark is a myth. A few pin holes or even a small fabric tear here and there is a non-issue. If you reduce the amount of overall light by 75% on the proper schedule, the flowering phase will undoubtedly kick in...The only 2 possible but rare issues associated with light deppen is the initial flower mode triggering of the run and not doing anything adverse to cause the plants to revert to veg. Those and waking up in the a.m. to find your tarp is in the neighbors yard - been there, had to go fetch that...cc