18/6 vs 24/0

[SOG420]

I was wondering if anyone knew what would happen if Swim switched to 24/0 after having some plants at 18/ for 5 weeks.
Would this encourage new growth from younger plants but not affect older 5 week plants negatively. This is purely hypothetical I just wondered>

SOG420 Reviewed by SOG420 on 03-13-2008. 18/6 vs 24/0 I was wondering if anyone knew what would happen if Swim switched to 24/0 after having some plants at 18/ for 5 weeks. Would this encourage new growth from younger plants but not affect older 5 week plants negatively. This is purely hypothetical I just wondered> Rating: 5

[hybridlove420]

"swim"....i thougt only the psychedelic forums used that term?

either way, swim turns his lights to 18/6 primarily for the purpose of saving 6hrs of energy per day. no idea if its better or worse for the plants than 24/7 tho.

best of luck to swiy

[GaGrown]

It has way less affect on the plants in veg than in flowering.. When flowering,the light cycle should should not be tampered with. Hermies!

[texas grass]

personal preference
power consumption

i like 18/6 cause it uses less power and its more natural for the plants

[daihashi]

personal preference
power consumption

i like 18/6 cause it uses less power and its more natural for the plants

Throughout my research of the stomata to try to figure out how we could manipulate it for our own benefit I found something interesting.

The plant will set it's clock based on the number of hours it receives light/dark.

Now what was interesting was this.. Was that even if the plant is in an enviorment that has lighting 24/7 the plant would develop it's own clock and actually go to sleep on it's own. This was indicated by stomata closure even during direct light after receiving light for 20 hours.

However for our purposes this is only useful to know for vegetative state as the 12/12 cycle is needed in flowering to promote certain hormones.

With that said... Use 18/6. Less electricity and the plant is going to rest on it's own even if you have your lights on 24 hours a day.

[fiddyonefiddy]

24/0 with blue spectrum for mother and clones
18/6 with red spectrum for veg
12/12 with red spectrum for flower
the plants love that blue spectrum and i may not even use the 18/6
anymore. seems like a waiste to me maybe im wrong.

[daihashi]

24/0 with blue spectrum for mother and clones
18/6 with red spectrum for veg
12/12 with red spectrum for flower
the plants love that blue spectrum and i may not even use the 18/6
anymore. seems like a waiste to me maybe im wrong.

Actually you still want blue spectrum for veg as well. Anything 5500k and above is good.

I'm not sure what you mean by that you might not use the 18/6 anymore. What are you going to go to 12/12? The plants really like 16+ hours of daylight a day when in veg. 24 hour lighting is not worth it either as the plant will develop it's own rest period regardless if the lights are on and off.

You might as well save the electricity and turn the lights off for a few hours a day during veg.

[fiddyonefiddy]

well they seem to love the blue for veg. is what i am saying .which ive always been told blue for grow red for flower. im doing a ghetto experiment on the dog chewed plants.the plant under 18/6 150 hps , became stretchy,thick and didnt do any branching and made huge fan leaves. the plant that lives under 24 hour flo looks like a bush. everything is the same except the light.

[daihashi]

the stretch comes more from the red spectrum (so I've read. Blue creates bushier plants and red causes some stretch.), not the 24 hours of light.

They are probably just getting more rest with 6 hours of rest. I think in my reading typically the stomata would close by itself after 20 hours. I wish I could find the link to that article.

[fiddyonefiddy]

well bushy is what i am after , the blue lite made four colas when the other only made one so definately blue light and as far as time im not sure i think to catch optimum stomata light time you leave the light on 24.these were chewed up so no telling if any of this is correct ...lol