Is 24 hours of light continuously 24/7 bad for my plants??

If you would have realized, I just put in some quotes with no mention about the earlier debate. I read what headshake wrote and did research on it myself and found out the same thing. I merely put it out there for everybody's knowledge when coming across this thread. It's obvious everyone has there own opinion on the subject and I could care less what is better because I don't change mine even after reading all this. It's just something I found after further investigating and shared it with everyone to read. They were quotes from someone other than I and from a biology site.

P.S. Oldmac, relax and remember to stay away from the red pill (matrix) it's making you cranky!:D

Hey there Italiano715,

I thought what you posted was very good. At least it contained reference to Costes et al's 1970 studies, which I had read before awhile ago. A whole lot of the info regarding photoperiods in regards to growing look at the complete growth cycle of a plant; but as you can see it my be an advantage at some points in a plants life and determental at others. BTW, subsequent studies to Costes et al's, has showed there is no harmfull residual effect (to tomato or sweet peppers plants) using 24/0 for short terms during vegative growth.

Yo' Headshake,

Don't be sorry about using Wiki, it's not a bad place to start with anything, just need to have a salt shaker handy so you can read thier stuff with a grain of salt. Everybody needs to understant that we really don't know everything about our beloved and sacred weed. It really is only in the last 20 years or so that science has figured out where the THC is located in the plant! Read older botany books (40+yrs old) and you'd think THC was in the leaves, stalks and branches. We've come a long way in a short time.

Oh, btw Italiano at 79 years of age I don't have much patience left and I use that as an excuse for why I'm so cranky. Besides, at my age it's one of the few things I'm still good at!

thanks again oldmac! i'm just a new macbook i guess, lol. i understand your points about the wiki. and i am aware that it is not fact by any stretch of the imagination, but nor is everything printed in a book either (not saying you agree to such rubbish, just a generalized statement).

and yes, i have TONS more things to learn, books and studies to read and experience to gain......and then some! i'm just happy that i have found something that peaks my interest so, with brilliant people to share it with and learn from!

i truly do thank you guys and everyone else that is a member of this forum because ya'll fuel my passion for this plant of ours (and botany in general). this is exactly why i like to call this place "home" (minus the bickering)!

"you must spread some reputation around......"


-shake

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Originally Posted by oldmac

Hey there Italiano715,
Everybody needs to understant that we really don't know everything about our beloved and sacred weed.

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Amen. Makes me wonder about the future of cannabis genetics, though. Are too many wives tales or improper breeding techniques degrading the cannabis genetics? Vanilluna, for instance...a varrigated cannabis?Vanilluna) (links to external site)

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Originally Posted by oldmac

Oh, btw Italiano at 79 years of age I don't have much patience left and I use that as an excuse for why I'm so cranky. Besides, at my age it's one of the few things I'm still good at!

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Used to be, folks respected their elders. Now they use us for target practice, and wonder why we're cranky. :jointsmile:

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Originally Posted by oldmac

To whom it may concern;
including "mature phase" we know as Flowering. IMHO a plant needs a dark photoperiod of at least some duration during this time. But not when it is in VEGATIVE state.

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Sorry, but I'm not one to jump to conclusions just because there is a lack of specific "immature stage" papers involving side-by-side comparisons of the two techniques.

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Originally Posted by oldmac

OK Rusty, you did not want to read up on this, but Ital at least did.

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I beg your fucking pardon...? I've been reading up on this shit for years, and have found nothing saying that 24 hours of daylight is an acceptable long-term (months, years, longer...) strategy of keeping cannabis genetics pure. There is nothing available to date that shows effects, such as genetic changes, (or not) nutritional changes (or not) and resultant developmental differences, (or not) size and structure of the flowers, (buds) psychotropic effects from a different plant-growth strategy...none of which is covered in the above-cited work. You are really trying to tell me that a cause (no darkness) has no effect? Interesting concept, as everything has a cause and effect. Would be quite a development were all those that use 24/0 schedule had their strains turn autoflower on 'em sometime dowwn the line, since darkness "wasn't necessary".

I am curious what latent changes happen when you start fooling with overclocking a plants metabolic processes, but not curious enough to consider an unresolved technique as completely safe for my cannabis. Were we talking gourds or lettuce, I would care-less about it's genetic responses, but some of us actually prefer not to fall for old wives tales, snake oil, or any other questionable technique. Not at all against trying something new, but not at the expense of risking the genetics of the only meds I take for my ailment.

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Originally Posted by oldmac

I previously mentioned the human tendicy to "humanize" our plants, project our feelings and needs onto them.

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Well, I guess that's the difference in our approaches. You try to keep from treating them like humans, I try to treat them like the medicinal plant that they are, and am not willing to take unnecessary risks because some old fart pretends that lack of pheno-specific evidence is to be assumed to be fact.

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Originally Posted by oldmac

This topic and others like it could be great to discuss, if you and I and others here could get less emotional and personnel with our debates and try to hold discussions instead. I'm willing to try and do better in the future.

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Originally Posted by oldmac

OK Rusty, you did not want to read up on this, but Ital at least did.

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Yeah. Sure. Whatever.

What is with all the hostility in this thread? Everyone what the hell is going on?

I've been looking back through a lot of posts both in this thread and in other threads and I'm just sitting here shaking my head.

It looks like there are some people who get offended in one thread and then decide to hold onto that and carry it over to other threads and to other members. It seems that there are others who get offended by one member and they hold a grudge and they just wait till a moment comes along where they can lay into them. I don't know maybe I'm missing something.

If someone atatcks you or flames you or calls you names or is questionable in any way, don't respond in turn, use the report key. It's really simple instead of going back and forth back and forth back and forth.

Yes, StinkyAttic isn't around as much and this was her area of expertise and she spent a lot of time in these sections. I have been making an attempt to read more of the posts in these sections but there is no excuse for this.

For the last time, if someone launches a warning shot across your bow, you don't return fire. Use the report key. The back and forth is just so unbelievably immature and a waste of bandwidth.

I am not addressing one person. I am addressing everyone.

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Originally Posted by oldmac

Hey jlve187,
There is no harm done to a plant by vegging at 24/0, 24/7.
I've used both 24/0 and 18/6 and it really is a personnel choice or what works best for you in your situation.

Hello ImageReaper,
Thank you so much for stating clearly that your answer was your opinion.

I think when people say that it needs a "rest" period, they are projecting thier human needs onto the plant. I also believed they needed a rest period, up to a few years ago when I took some botany classes at the local community college. Found out our beloved plant did not grow anything at night, not even roots.

Think about running a clonner....weak, blue biased light, 24 hours a day....to root cuttings. The interesting thing is, if you root cuttings using 12/12, it will work but root growth is much slower. If they laid down roots during the dark period the 12/12 should grow roots faster. (unless the plant is confused, not knowing to root or bloom?)

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well actually its simpler than that. Constant light and unnaturally forced photosynthesis stresses plants, they aren't really genetically designed for it ;)

Still, some plants are hardy and can take it. :)

peace,
Denial

I had it explained to me by someone who actually tried both ways with cannabis and these were his results. Dont really remember word for word how it went, but it was something like it doesnt really matter either way. On a 24 hour schedule your plants will actually grow slower, but since they have an extra 6 hours of light compared to an 18/6 schedule in the long run your plants will grow bigger. Something like 25% more light, but only 15% more growth. So if your in a big f'in hurry for some reason, use 24/0, if not, 18/6 is just fine. In my opinion my plants look happier under 18 hours light than 24, i have tried both ways also. I also think, just my opinion, but i think its more efficient to use 18/6. Maximum plant growth for the amount of light, im all about efficiency in the growroom.

Im curious to know if you havent completly seeled off your grow room, if there is a tad bit of light, and i mean a bit, theres 2 cracks i just havent sealed, and really there is nearly no light from 12am to 6am which is my dark times. Im on day 5, should I hurry to seal those cracks?

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Originally Posted by EnhAnceD

Im curious to know if you havent completly seeled off your grow room, if there is a tad bit of light, and i mean a bit, theres 2 cracks i just havent sealed, and really there is nearly no light from 12am to 6am which is my dark times. Im on day 5, should I hurry to seal those cracks?

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YES, don't take any chances.