Doc greenthum
Member
Came across this http://www.cannabisni.com/growing-tips-and-advice/1899-grow-bigger-and-better-saving-30-50-percent-on-your-energy-cost seems like an idea to me but im new to this
Alternative lighting schedule?
- Thread starter Doc greenthum
- Start date
IslandDelight
Active Member
interesting...has anyone seen this?
Doc greenthum
Member
Nobody have anything to say about it? Starting my first grow have everything but my ph pen setup all ready. Going to go ahead but fact everyome does 24h, 18/6 and 12/12 not sure as surely would have read more about it?
Jogro
Well-Known Member
There is a whole other 20+ page thread on this lighting schedule, involving some pretty heated arguments on both sides. It might be listed under "12-1" or something like that.
Basically, instead of going 24-0, the idea is to use a flowering type 12-12 schedule for vegetative growth, but you interrupt the 12 hour dark period with one hour of light in the middle of the 12 hour dark period to prevent the plant from flowering.
The main advantages are that you're using less electricity during vegetative growth. Despite what is claimed in the article, I think less total hours of light would probably result in less (not more) overall growth during the vegetative stage. That would mean shorter plants at the onset of flowering, which actually could be a real advantage depending on your grow setup/conditions. It also might be a disadvantage.
Arguments against, are that stressing the plant this way might cause hermaphroditism or just decrease female/male ratios.
Anyway, I don't see why this wouldn't work, though I've never tried it. I also don't know if the extra one hour of light provides any real advantage to just running 12-12 from seed, but I suspect that is probably pretty highly strain dependent.
Lastly, I recently started a thread on a totally different proposed *flowering* light schedule, 12-6. The idea is to create artificial 18 hour days with reduced DARK time. You don't save any electricity, because the plants get the same total amount of light during flowering time, but in theory, you could cut 1/4 off the flowering time this way. So you might be able to reduce a typical 8-10 week flowering period by two full weeks.
Basically, instead of going 24-0, the idea is to use a flowering type 12-12 schedule for vegetative growth, but you interrupt the 12 hour dark period with one hour of light in the middle of the 12 hour dark period to prevent the plant from flowering.
The main advantages are that you're using less electricity during vegetative growth. Despite what is claimed in the article, I think less total hours of light would probably result in less (not more) overall growth during the vegetative stage. That would mean shorter plants at the onset of flowering, which actually could be a real advantage depending on your grow setup/conditions. It also might be a disadvantage.
Arguments against, are that stressing the plant this way might cause hermaphroditism or just decrease female/male ratios.
Anyway, I don't see why this wouldn't work, though I've never tried it. I also don't know if the extra one hour of light provides any real advantage to just running 12-12 from seed, but I suspect that is probably pretty highly strain dependent.
Lastly, I recently started a thread on a totally different proposed *flowering* light schedule, 12-6. The idea is to create artificial 18 hour days with reduced DARK time. You don't save any electricity, because the plants get the same total amount of light during flowering time, but in theory, you could cut 1/4 off the flowering time this way. So you might be able to reduce a typical 8-10 week flowering period by two full weeks.
I use it ... works well for me .. saves hydro costs and bulb life. No stress related problems at all. plants are healthy.
happy growin
IslandDelight
Active Member
Have you tested this theory? I was under the impression the flowering cycle was dependent on the dark period, which requires 10+ hours.
My theory on this is you would stress your plants out. How would you induce flower on 12-6?
azman
Active Member
the thread in question is under the advanced section, a few people there are using it as i am myself,
i am now under week 5 of flower using this technique and for mew at least it works,
using 3x600 lights was a significant reduction in electricity usage.
here's the thread in question:
https://www.rollitup.org/advanced-marijuana-cultivation/446118-12-1-lighting-schedule-has.html
i am now under week 5 of flower using this technique and for mew at least it works,
using 3x600 lights was a significant reduction in electricity usage.
here's the thread in question:
https://www.rollitup.org/advanced-marijuana-cultivation/446118-12-1-lighting-schedule-has.html
azman
Active Member
the hour in question can be lowered and is merely to prevent the flowering hormone and could be done with cfl too.
FatMarty
Well-Known Member
Anyone ever tried doing accelerated veg lighting schedule?
I am trying 10 on followed by 2 off at present with seedlings.
Only second day of schedule; so I have no data on mine yet.
Here's my thinking: flower cycle is dependent upon length of dark period.
veg cycle does not appear to be dependent upon length of light period.
Plants make sugars from light to use to build cells during dark period.
2 dark periods a day gives two opportunities for new cell work to occur.
I got the idea when the power went out for a couple hours Thursday...
I am trying 10 on followed by 2 off at present with seedlings.
Only second day of schedule; so I have no data on mine yet.
Here's my thinking: flower cycle is dependent upon length of dark period.
veg cycle does not appear to be dependent upon length of light period.
Plants make sugars from light to use to build cells during dark period.
2 dark periods a day gives two opportunities for new cell work to occur.
I got the idea when the power went out for a couple hours Thursday...