View Full Version : lighting question
weedsmoka16
09-23-2006, 08:50 PM
i hurd a rumor that when your growing indoor plants its smart to keep the lights on them 24/7. is that true??
BlueBear
09-23-2006, 10:36 PM
You better have more knowledge than rumors if you want to grow this plant the way it needs to be grown. The answer is yes, at the beginning of veg 24-7 will premote good fast growth. Study, study and you guessed it more study.
Adieu
weedsmoka16
09-24-2006, 03:05 AM
thanks man
latewood
09-24-2006, 06:25 AM
personally, I think it is a mistake to use a 24/7 photoperiod...plants require rest just like the rest of nature...shorter photoperiods also produce less stress and more females. peace, goodluck.
TheGreenFog
09-24-2006, 07:06 AM
I agree with Latewood. From what I've read and other people have experienced....not me...the most productive and efficient photoperiod schedule is the following:
Seedlings and Clones: 24/7
Vegatative Plants: 18/6
Flowering Plants: 12/12
I feel that a plant needs rest and it definitely works on its root system more during the dark period. Hope this helps. :D
Oh and by the way...HI EVERYONE! I'm new here. Hope you'll be seeing lots of me, cuz I've been seeing lots of youse. Been reading up before I came and posted useless posts....oh crap...am I starting to make this one of those. :D :smokin:
Be Cool.
weedsmoka16
09-24-2006, 02:03 PM
cool..
thanks
jamstigator
09-24-2006, 02:19 PM
There are only two reasons not to use 24/0 during veg: 1) if you don't want your plants to grow too quickly (because your flowering room/cab isn't ready yet, or whatever); and 2) if your cabinet lacks adequate enough ventilation to keep the temps from getting too high if you run the lights constantly. Having the lights on 24 hours a day doesn't cause hermies, and using 18/6 doesn't produce more females. The plants do not need a dark period to 'rest up' or anything during veg.
I have tested this, because even though the book I read was clear enough about this, I had seen others say that 18/6 is better and such. So, I put some plants in one cabinet running the lights 24/0 and the same exact strain in another exactly identical cabinet running the lights 18/6. In the end, the plants that had had the lights on 24/0 were significantly larger, had more nodes, and were in general much further along than the 18/6 plants after a month. Of course, HEAT does produce more hermies and can affect the male/female ratios, and heat does build up when you run the lights constantly, so I made sure I had adequate ventilation and temps in both cabs, to rule out heat as a factor. The result: 24/0 consistently produces larger and more robust plants than 18/6. But don't take my word for it; try it yourself and you will see this to be true.
One thing that *is* important is that whatever light cycle you choose during veg, whether it's 18/6, 24/0, 16/8, whatever: don't vary it, as that *can* cause hermies. If you start with 24/0, stay with 24/0. Whatever you start with, stay with it.
Dutch Pimp
09-24-2006, 03:44 PM
I agree with the jam-man.
latewood
09-24-2006, 05:31 PM
whatever...goodluck I run 16/8 in veg
BobBong
09-24-2006, 06:54 PM
18/6 here...
it's personal. grower specific if you ask me.. some people just can't afford to have the lights on for that long..
but you can't blame the plant for going hermie (if it does) on a 24/0 or 24/7 light cycle
Bob.
justaseed
09-24-2006, 07:18 PM
if you run flouros would they last longer running 24/0 rather than 18/6 16/8 etc. because with 24/0 they only have to fire up 1 time instead of 365 times a year. in my experience lights burn out right when you turn them on instead of just dying out while burning. i had 8 4ft agrosunn t12s running 24/0 in my veg chamber for 18months and they were still fine when i had to shut down my grow for security reasons(1 year probation, only 8 months to go, i can't wait!!!). i wonder if they would have lasted that long if they had to fire up over 500times instead of just once??? i could be totally off base with this whole thing but i am curious.
bejay
09-25-2006, 04:23 AM
most bulbs should be changed on a regular basis as they lose intensity overtime this is true of both hid and flouros.
personally, I think it is a mistake to use a 24/7 photoperiod...plants require rest just like the rest of nature...shorter photoperiods also produce less stress and more females. peace, goodluck.
Agreeed 100%.
18/6 is what the plant would get naturaly, and the plant needs a rest period. Also the dark period is needs for photosynthesis to happen correctly.
brookerosebud
09-25-2006, 12:26 PM
24/7 works for me. pot does not need a rest period. if its getting light, photosynthesis is taking place and the plant grows. if there is no light there is no photosynthesis, therefore, no growth. true, its all about preference, but like i said, they don't need dark, so why slow the growth down?
do your homework
love, brooke
brookerosebud
09-25-2006, 12:27 PM
jam is 100% correct!
24/7 works for me. pot does not need a rest period. if its getting light, photosynthesis is taking place and the plant grows. if there is no light there is no photosynthesis, therefore, no growth. true, its all about preference, but like i said, they don't need dark, so why slow the growth down?
do your homework
love, brooke
Lol, i dont need to do my homework, concidering i've been growing pot for more than half my life, well over half.
Do as you like, you'll never know will you unless you try it.
IF you have a sealed grow room the plant, during the DARK 6 hours, will make Co2. Carbondioxide is used by the plant when the light is ON, and the plant will then make oxygen. If you use the 18/6 time period your grow room will fill with a albeit small amount of Co2, which helps the plant while it photosynthesises.
Thats 1 reason, shall i continue, No.
latewood
09-25-2006, 06:10 PM
24/7 works for me. pot does not need a rest period. if its getting light, photosynthesis is taking place and the plant grows. if there is no light there is no photosynthesis, therefore, no growth. true, its all about preference, but like i said, they don't need dark, so why slow the growth down?
do your homework
love, brookeThis is offbase...Photosynthesis occurs 24 hours a day...Lights on or off...geeeez:cool:
latewood
09-25-2006, 06:12 PM
If you think that leaving the lights on 24/7 is a good idea, then you don't know much about Horticulture, photosynthesis, or growing pot...IMO.
brookerosebud
09-25-2006, 11:51 PM
would love to know where you heard that plants in dark produce co2. been looking for an hour and i can only find the opposite. plants use light and co2 in a chemical reaction to turn photons into chem energy. however, i'm sure its out there.
a link would be nice though.
love brooke.
the image reaper
09-26-2006, 12:13 AM
personally, I think it is a mistake to use a 24/7 photoperiod...plants require rest just like the rest of nature...shorter photoperiods also produce less stress and more females. peace, goodluck.
absolutey, positively ... active youngsters need their rest ... :D
the image reaper
09-26-2006, 12:16 AM
jam is 100% correct!
you're both wrong ... :D
weedsmoka16
09-26-2006, 02:17 AM
thanks 4 all the replies i think im gonna go with the 16/8 it makes more sence to me plus this is my first plant so im just experimentin for a more serious grow in the future
would love to know where you heard that plants in dark produce co2. been looking for an hour and i can only find the opposite. plants use light and co2 in a chemical reaction to turn photons into chem energy. however, i'm sure its out there.
a link would be nice though.
love brooke.
Well, i have no link, you want proof you find it yourself you lazy little tit.
During the light cycle the plants produce oxygen, during the dark the plant produces Co2.
Now, you need to fuck the hell off, and do your own reading.
Maybe you should be growing pansy's before you go anywhere near pot.
I find it funny your somehow supposidly growing pot but you have no idea about how the plants grow? Fuck me side ways your funny.
dsm711
09-26-2006, 02:43 PM
I've been growing for over 10 years and always have the lights on 24/7 for veg. It works for me. My plants rest when there dead. LOL
http://www.hightimes.com/ht/grow/content.php?page=act_growshow&id=709&totalrecords=1000
That link isnt proof, its ANOTHER opinion...
Dutch Pimp
09-26-2006, 11:12 PM
18/6 here...
it's personal. grower specific if you ask me.. some people just can't afford to have the lights on for that long..
but you can't blame the plant for going hermie (if it does) on a 24/0 or 24/7 light cycle
Bob.
I agree with jam....but.. Bob Bong..said it best. I agree more with him...it's a personal thang.....
brookerosebud
09-29-2006, 12:55 AM
damn, no proof. other than my shit is growin like a mofo.
24/7.
works for me
but hey, do what you want, when you want, and how the fuck you want to. that's my oppinion. PEACE!
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