mista sativa
Well-Known Member
Quick question. Can using 24/0 light cycle cause slight stretching? Can anyone shed some light? Please, only experienced indoor growers need answer.
Can using 24/0 cause some stretching?
- Thread starter mista sativa
- Start date
Gregor Eisenhorn
Well-Known Member
I always thought stretching is caused by weaker lights or not having them close enough to the plant, so iut's trying to find the strongest intensity. Eg. cfl's that are positioned higher than they are supposed to be, running at 24/7 will still cause the plant to strecth.
hotrodharley
Well-Known Member
Weak light causes stretch along with some genetic traits in some strains. There is no benefit to 24-0. Even 4 hours of darkness is preferred with autos. Preferred, not required.
qwizoking
Well-Known Member
light saturation/light bleaching happens with too much light ya.
this does not necessarily correlate to light intensity and the activation of receptors and responses that control stretch
its better to have a dark period and lower your lights slightly.
as for experience, i mainly grow central/south american sativas. i know stretch
this does not necessarily correlate to light intensity and the activation of receptors and responses that control stretch
its better to have a dark period and lower your lights slightly.
as for experience, i mainly grow central/south american sativas. i know stretch
RAYRAY420SMOKEWEEDEREDAY
Well-Known Member
weak lights or lights at to far of distance causes stretching
mista sativa
Well-Known Member
So I'm gathering from the responses, no
pretty much
abe supercro
Well-Known Member
plants stretch during the dark period, or from having to compete for light. 24/0 will may proved plentiful growth, but as it turns out you will have the tightest internodes. overall, you will get more stretch with a dark period imo.
Buzz Buzzilla
Well-Known Member
The main reason you get stretching from the dark period is the temp change...the greater it is the more stretching will occur..this tells the plant that it's the time of year when it would normally stretch. As mentioned weak and lights too far away will also cause this.
Buzz Buzzilla
Well-Known Member
There is most definatly a benefit to running 24/0...I'm with Qwiz though I know with out a doubt that plants benefit from low light periods. I've read studies on low light and plant nutrient absorbtion and basically they can handle a higher ppm with weak light or what would be a cloudy day in nature. Stop and think about it for a min what usually happens when it rains outside...it gets cloudy and then after the rain it's normally cloudy still right?
Also any light source that is missing the correct blue hues will cause stretching, I veg with hps and throw in 8000k flourecents to make up for the missing blue and I don't see much stretching running 24/0 what do you think
I did just defoliate like crazy 5 days ago! But we won't get in to that...
Alienwidow
Well-Known Member
I havent really noticed too much stretching veging with hps vs mh. I run both and the mh are usually two maybe three inches shorter if that with a three month veg. To me that aint much. Crowding and low light do big time. And small pot size but you dont agree with that one right.?
Buzz Buzzilla
Well-Known Member
You must have nice bulbs for hps that have good blues...I'm currently using cheapest bulb they sell at the hydro store :s .....and that pot size thread has been has been bugging me like crazy tring to figure out why a plant would chose to do that....might need another thread for that one.I havent really noticed too much stretching veging with hps vs mh. I run both and the mh are usually two maybe three inches shorter if that with a three month veg. To me that aint much. Crowding and low light do big time. And small pot size but you dont agree with that one right.?
Alienwidow
Well-Known Member
I use de's. At 100% *edit, and my MH is a regular old girl with a wing reflector. But the plants under the mh do get some of the oranges from the surrounding hps. Ive seen a couple other threads though too where you could see the difference, but it wasnt like a really noticeable one.youd really have to look hard to see it, but its there.
And yes, id like to see a thread about small pots and stretch. Because thats just my experience and not from a book.
Buzz Buzzilla
Well-Known Member
here I made us one
https://www.rollitup.org/t/do-smaller-pots-make-your-plants-stretch.889592/ alright hopefully someone can have some insight for us here
Alienwidow
Well-Known Member
Nice. Ill stay out of it
SPLFreak808
Well-Known Member
Im curious why? Ive got a pheno hunt going on and a few accidentally root bound girls in flower not only droop hard, but the tops keep fucking stretching.Nice. Ill stay out of it
Alienwidow
Well-Known Member
I dont want to sway the direction of that thread. I want to see what the other members say. Its what ive noticed from practice, havent really read too much about it on the net but if you google lankey marijuana plants and hit images, youll see tall skinny plants in small pots. Oh and what your seeing is exactly what ive seen too. Theyll burn easier if theyre root bound also so be careful.
qwizoking
Well-Known Member
im no plant physiologist, chemistry and the human body are where my degrees lie.. i know relatively little about the functioning of plants..so heres my penny
i dont agree with the root bound thing. ive grown outdoors straight in earth and ive had 9+ sharing an 8qt bag of soil.
im not talking about the structure. hormomes are released in these situations to keep the tops going north instead of bushing sideways around other plants, again this doesn't necessarily mean its stretching, internode length is what yiu need to look at. but yes it can cause stretch as the upward growth is more rapid
i also veg under hps. ive done whole grows with cfl mh hps, and over all i prefer the growth and shape under hps.
phototropins,cryptochromes and phytochromes look at different types of light as well as length and intensity.. as well as controlling the circadian rythm, the light intensity is specifically what controlls the stretch we are usually describing. having light 24/0 lowers the overall amount of light the plant can handle, you will have tighter nodes with more intense light and a slight dark period. this is also normal in its clock, and the plant doesntstretch looking fpr light during this dark period
@SPLFreak808 do you mean like a hyponastic response? thats the first thing that popped in my head.
but could be a variety of things, a pic would help. hormones in plants are different than animals...Plant hormones are often not transported to other parts of the plant and production is throughout all parts. temp, portion of the plant receiving light, humidity etc will all play a roll depending on what exactly your describing
i dont agree with the root bound thing. ive grown outdoors straight in earth and ive had 9+ sharing an 8qt bag of soil.
im not talking about the structure. hormomes are released in these situations to keep the tops going north instead of bushing sideways around other plants, again this doesn't necessarily mean its stretching, internode length is what yiu need to look at. but yes it can cause stretch as the upward growth is more rapid
i also veg under hps. ive done whole grows with cfl mh hps, and over all i prefer the growth and shape under hps.
phototropins,cryptochromes and phytochromes look at different types of light as well as length and intensity.. as well as controlling the circadian rythm, the light intensity is specifically what controlls the stretch we are usually describing. having light 24/0 lowers the overall amount of light the plant can handle, you will have tighter nodes with more intense light and a slight dark period. this is also normal in its clock, and the plant doesntstretch looking fpr light during this dark period
@SPLFreak808 do you mean like a hyponastic response? thats the first thing that popped in my head.
but could be a variety of things, a pic would help. hormones in plants are different than animals...Plant hormones are often not transported to other parts of the plant and production is throughout all parts. temp, portion of the plant receiving light, humidity etc will all play a roll depending on what exactly your describing
SPLFreak808
Well-Known Member
Ill throw up a pic tonight if you like, lights just shut off. The stretch is mostly up top and mostly on 3 of the biggest branches with the most leaves(1kw hps very close above), I flowered them 20 days after sprouting the ground in a 2 gallon containor (now 28 days in flower,48 days from sprout) and the problem plant threw out flowers in the 1st week of 12/12 and is now showing severe root bound issues. Keep in mind im hunting with bag seeds.
Weedy Resin
New Member
I'd say pretty streched