Kassiopeija
Well-Known Member
Ok, so I went through a couple of websites in order to understand what different lightphases/times do, but there seem to be so many contradictions of what people state it just let me be more & more confused.
First off, I got the basics down that is a 12 hour long uninterrupted darkness will trigger flowering the plant as it may "think" winter is near etc
But what I really wanna know about is what else is happening to the plant during the nightphase, what does the plant do else? I assume the only thing it can't do is photosynthesis.
Alot of people state that
- during nighttimes the plant will start to grow.
- and that it will use the sugars which it made during the day for this.
- and that a plant can only store a certain amount of sugars, which means if you have strong lights it may be filled up completely after 12 hours and the rest 6 hours during veg are kinda wasted as the plant awaits statically the night when it can grow.
- during nighttimes roots will grow.
- certain manufacturers mention that blue light (MH) bulbs will trigger more rootgrow.
Now I've written this in a crude black-or-white fashion, and perhaps in reality it's more grey, but maybe you're already noticing some contradictions between these statements and what has become established normal practice of plant-growing techniques.
For example, if roots only develop when light is off, why do many people put clones under 24/7 constant light? When exactly the only thing they want is to get some inital rootgrow?
Some growers also use 24/7 lights for the full vegetation period so how come that these plants do have roots & ofc also grow new leaves, branches, stems etc? They even say that this will result in a stronger grow, and I can't think that they're deliberately wasting electricity for nothing, so perhaps the notion that plants only develop roots, or grow, or use their photosynthecised sugar only during nighttimes is bull?
When rootgrow only takes place during night how come the color of light can have any influence on it whatsoever?
I read about an advanced technique preventing a plant going flower by interrupting the darkness period by 1 hour light each day, ie. 12/5,5/1/5,5 if you get this. So there's a total of 13 hours of light, and the plant will still only veg. I assume that making it 6/6/6/6 will equally work. But this is a complete opposite approach to growers which want to use 24 max lights. So where exactly will be the difference for the plant, and I mean specifically the internal plant processes? Does the 24h always on lightschedule artifically stress a plant too much so it's becoming more elligible for diseases or herming or whatever, but what if the plant is strong enough could this help to harvest sooner (or more)?
Some growers also put in a stronger bulb in when going into the flowering mode, ie. 250 MH is replaced by a 400 HPS because they feel a plant needs more light. Could that also be accomplished by setting up a 18/12 light schedule? Or does the plant have an internal 24h clock which will measure this like 18/6 6/18 12/12 etc pp and thus be totally confused....
Let's put it the other way round - is the darkness-period only of interest to us in order to get the plant into vegetation or flowering stage, and, besides that, we would like to give it as much light as somehow possible? Or are there other interesting important internal things going on in the plant during the night-phase that we want as well? And if so, what are these?
Thanks for reading
First off, I got the basics down that is a 12 hour long uninterrupted darkness will trigger flowering the plant as it may "think" winter is near etc
But what I really wanna know about is what else is happening to the plant during the nightphase, what does the plant do else? I assume the only thing it can't do is photosynthesis.
Alot of people state that
- during nighttimes the plant will start to grow.
- and that it will use the sugars which it made during the day for this.
- and that a plant can only store a certain amount of sugars, which means if you have strong lights it may be filled up completely after 12 hours and the rest 6 hours during veg are kinda wasted as the plant awaits statically the night when it can grow.
- during nighttimes roots will grow.
- certain manufacturers mention that blue light (MH) bulbs will trigger more rootgrow.
Now I've written this in a crude black-or-white fashion, and perhaps in reality it's more grey, but maybe you're already noticing some contradictions between these statements and what has become established normal practice of plant-growing techniques.
For example, if roots only develop when light is off, why do many people put clones under 24/7 constant light? When exactly the only thing they want is to get some inital rootgrow?
Some growers also use 24/7 lights for the full vegetation period so how come that these plants do have roots & ofc also grow new leaves, branches, stems etc? They even say that this will result in a stronger grow, and I can't think that they're deliberately wasting electricity for nothing, so perhaps the notion that plants only develop roots, or grow, or use their photosynthecised sugar only during nighttimes is bull?
When rootgrow only takes place during night how come the color of light can have any influence on it whatsoever?
I read about an advanced technique preventing a plant going flower by interrupting the darkness period by 1 hour light each day, ie. 12/5,5/1/5,5 if you get this. So there's a total of 13 hours of light, and the plant will still only veg. I assume that making it 6/6/6/6 will equally work. But this is a complete opposite approach to growers which want to use 24 max lights. So where exactly will be the difference for the plant, and I mean specifically the internal plant processes? Does the 24h always on lightschedule artifically stress a plant too much so it's becoming more elligible for diseases or herming or whatever, but what if the plant is strong enough could this help to harvest sooner (or more)?
Some growers also put in a stronger bulb in when going into the flowering mode, ie. 250 MH is replaced by a 400 HPS because they feel a plant needs more light. Could that also be accomplished by setting up a 18/12 light schedule? Or does the plant have an internal 24h clock which will measure this like 18/6 6/18 12/12 etc pp and thus be totally confused....
Let's put it the other way round - is the darkness-period only of interest to us in order to get the plant into vegetation or flowering stage, and, besides that, we would like to give it as much light as somehow possible? Or are there other interesting important internal things going on in the plant during the night-phase that we want as well? And if so, what are these?
Thanks for reading
