increased yeild with photoperiod

R

Redeflect

Well-Known Member
The cycle begins on monday at 6am.... the plant gets 12 hours of darkness 5x during the week... it ends on saturday at 6pm... and begins again on sunday at 6am... it doesn't shock the plant because there is no difference. You're forgetting that at 6pm on saturday night begins and it ends at 6am on sunday, when the plant is ready for its 21:36 daylight again.
 
svchop889

svchop889

Well-Known Member
what about this start off your flowering with 12/12 to get it to strech and make room for the buds then switch to a 18/12 to grow big buds then switch to a 12/18 too fill them with thc and leave them in the dark for 48hrs at the end so that they use up there stored energy to increase thc content
 
R

reeferMaster

Well-Known Member
it doesent make sense 2 run up your electricity bill so what i figue is do it like summer would transition them down slowly from 18/6 all the way down 2 12/12 and im even going 2 go lower 2 8on/16 off so i figure they will begin flowering probly around 14 on 10 off-12/12 and probly half way threw flowering i will begin 2 decrese lite period, the sun doesent al the sudden come on for 21 hours a day i dont c how the plants would like that maybe flouresents it would help. i wouldnt trust doing it 2 a seed plant , clone it would prrobly mae it go crazy and thc gets all sticky because it wants 2 catch pollen. so the longer it waits 2 get impregnated the stickyier shell get, its all about letting the bud mature.
 
R

Redeflect

Well-Known Member
Humans have a natural circadian rhythm of 25 hours... so even though the earth spins in 24 hours we naturally want it to spin in 25. There is nothing to say giving the plants a "day" of more than 24 hours would bother them.
 
moash

moash

New Member
reeferMaster said:
it doesent make sense 2 run up your electricity bill so what i figue is do it like summer would transition them down slowly from 18/6 all the way down 2 12/12 and im even going 2 go lower 2 8on/16 off so i figure they will begin flowering probly around 14 on 10 off-12/12 and probly half way threw flowering i will begin 2 decrese lite period, the sun doesent al the sudden come on for 21 hours a day i dont c how the plants would like that maybe flouresents it would help. i wouldnt trust doing it 2 a seed plant , clone it would prrobly mae it go crazy and thc gets all sticky because it wants 2 catch pollen. so the longer it waits 2 get impregnated the stickyier shell get, its all about letting the bud mature.
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cloning it make it go all crazy?what?
i believe the pistils r used to catch pollen...
 
jberry

jberry

Well-Known Member
reeferMaster said:
it doesent make sense 2 run up your electricity bill so what i figue is do it like summer would transition them down slowly from 18/6 all the way down 2 12/12 and im even going 2 go lower 2 8on/16 off so i figure they will begin flowering probly around 14 on 10 off-12/12 and probly half way threw flowering i will begin 2 decrese lite period, the sun doesent al the sudden come on for 21 hours a day i dont c how the plants would like that maybe flouresents it would help. i wouldnt trust doing it 2 a seed plant , clone it would prrobly mae it go crazy and thc gets all sticky because it wants 2 catch pollen. so the longer it waits 2 get impregnated the stickyier shell get, its all about letting the bud mature.
Click to expand...
it seems like your idea would use more power, not less....
and i dont understand your thinking on the whole clone/seed thing either?
 
R

reeferMaster

Well-Known Member
i meant clones grow alot crazyier then seeds and u dont have 2 worry as much about hermies so it would be easy 2 use a clone 2 test out the stress factor and change the lighting as often as you want 2, the light does not decrease thc becuase the bud is always buling over itself in layers, i guess the pisols could help with pollination bud either way it goes 2 the bud pod. i belive pollens actually caught buy the crystals on the pod becuase u dont need hairs when growing weed hairs die any way 2 a pollinated bud pod. using a digital timer can manipulate all the cycles. i was explaing a 24 hour.15 min on/off timer. sicne night is important 2 growing why dont we have a longer night period as well as a longer day period for instance 20 on and 10 off 4 veg and maybe 16/12 2 begin bud so then u will not have 2 switch it back and forth at the end of your period. seems like the profesional growers here dont wana give up thier secret, i would imagine it would be better 2 duplicate a normal summer and maybe give it a little tweaks. but what about out door only getting about 6-9 hours of full sunlight? im thinking it would be better 2 have a few low watt halides or flouro side light s on 12/12 and have hps in the centter come on for 10 hours inbetween the 12/12 . i think this would simulate a normal day. im just obsessed with the plants growing natraully becuase thats how i belive in it grow the best for me.
 
moash

moash

New Member
reeferMaster said:
i meant clones grow alot crazyier then seeds and u dont have 2 worry as much about hermies so it would be easy 2 use a clone 2 test out the stress factor and change the lighting as often as you want 2, the light does not decrease thc becuase the bud is always buling over itself in layers, i guess the pisols could help with pollination bud either way it goes 2 the bud pod. i belive pollens actually caught buy the crystals on the pod becuase u dont need hairs when growing weed hairs die any way 2 a pollinated bud pod. using a digital timer can manipulate all the cycles. i was explaing a 24 hour.15 min on/off timer. sicne night is important 2 growing why dont we have a longer night period as well as a longer day period for instance 20 on and 10 off 4 veg and maybe 16/12 2 begin bud so then u will not have 2 switch it back and forth at the end of your period. seems like the profesional growers here dont wana give up thier secret, i would imagine it would be better 2 duplicate a normal summer and maybe give it a little tweaks. but what about out door only getting about 6-9 hours of full sunlight? im thinking it would be better 2 have a few low watt halides or flouro side light s on 12/12 and have hps in the centter come on for 10 hours inbetween the 12/12 . i think this would simulate a normal day. im just obsessed with the plants growing natraully becuase thats how i belive in it grow the best for me.
Click to expand...
http://www.mellowgold.com/grow/mjbotany-removed/marijuanabotany1.html
 
R

reeferMaster

Well-Known Member
yes that is true, so now i belive that the pollen is caught by the hairs it actually makes sense now. i thought the sticky crystals is what did it but looking throught the micro scope the hairs also have little tiny amber crystals on them, thanks for the link haha ive read al this stuff before, doesent hurt 2 read things twice.
 
R

reeferMaster

Well-Known Member
haha im 2 busy2 be researching, what i would like 2 know is whats the best time for indoor lighting, like what strains need how much light and how many hours it takes 2 produce big buds, i think 12/12 is by far best. ive heard of decreasing it half way through budding down 2 8 hours
 
FrontaLobotomy

FrontaLobotomy

Well-Known Member
When I was first learning how to grow, I used to bring the light period down to 8 hours for the last 3 weeks or so of flowering. Though I've yet to find anything conclusive that would point in the direction of it improving the yield over a 12 hour light period. If anything it maybe brought the satvia genetics in a week or so earlier, but that was about it. The most significant factor when it comes to large yields is space, the more space the more the plant can grow.
 
DrDank

DrDank

Well-Known Member
I have tested and tried the 21/12 photoperiod, aka Planet Ito by Mister Ito (from overgrow?), and although it sucks up more electricity, I have noticed a difference in yields. I understand that plants stop using the light around 18hrs, but it's the only way to program the digital timer. It's almost impossible to the lights on/off manually, without screwing it up.
You don't need to run for the whole flo cycle, a week or two is enough, but I suppose going longer might push them even more. I've done it with flo's to get pre-flower going, and then move them under a 400w for 12/12. I've done it with the 400, but the heat rises to above 90°F, so it's tough to balance. I would like to try it with a dimmable 600w ballast, running 50% for a couple of weeks (2-3 ito cycles) and then switch back 12/12 at 100% power.
 
moash

moash

New Member
DrDank said:
I have tested and tried the 21/12 photoperiod, aka Planet Ito by Mister Ito (from overgrow?), and although it sucks up more electricity, I have noticed a difference in yields. I understand that plants stop using the light around 18hrs, but it's the only way to program the digital timer. It's almost impossible to the lights on/off manually, without screwing it up.
You don't need to run for the whole flo cycle, a week or two is enough, but I suppose going longer might push them even more. I've done it with flo's to get pre-flower going, and then move them under a 400w for 12/12. I've done it with the 400, but the heat rises to above 90°F, so it's tough to balance. I would like to try it with a dimmable 600w ballast, running 50% for a couple of weeks (2-3 ito cycles) and then switch back 12/12 at 100% power.
Click to expand...
awesome
thanks for chiming in
i didnt think anybody was ever gonna come in with experience in this
 
Don Gin and Ton

Don Gin and Ton

Well-Known Member
brilliant post man kool im thinkin ill get a digi timer n get to work. so 2-3 weeks in the middle of the 9 should be golden or would you recommend the latter 2-3 weeks when most of the filling out occurs?

rep+
 
R

Redeflect

Well-Known Member
If plants "stop using light around 18hrs" then why didn't you put it on a 16/12 cycle... your math logic fails which means your scientific analysis of the grow was a fail too.
 
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