ibaba
New Member
Because of this cannabis is actually happier and produces bigger buds with more resin when only on 6 hours of full light. Cannabis is a short day plant, so a 12hr regimen means slower flowering with less bud weight.
LED lights
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Because of this cannabis is actually happier and produces bigger buds with more resin when only on 6 hours of full light. Cannabis is a short day plant, so a 12hr regimen means slower flowering with less bud weight.
VonDankenhoek
New Member
Very interesting Ibaba. Do you have some research in support of those heavier, more resiny buds with the 6 bright hours practice??
If that is a fact it supports the mimicking daylight concept. It would be in contrast to the historical practice of nearly all indoor growers using all types of lamps that run full on the photoperiod.
LEDBud
Well-Known Member
Amusing as ALL the research proves your massively wrong.
Research shows those reducing light strength duration when using HID are desperate to save money on their light bill.
quote ibaba :
Because of this cannabis is actually happier and produces bigger buds with more resin when only on 6 hours of full light. Cannabis is a short day plant, so a 12hr regimen means slower flowering with less bud weight.
Research shows those reducing light strength duration when using HID are desperate to save money on their light bill.
quote ibaba :
Because of this cannabis is actually happier and produces bigger buds with more resin when only on 6 hours of full light. Cannabis is a short day plant, so a 12hr regimen means slower flowering with less bud weight.
I can't agree more 12hr is long and well established. A friend that really helped me learn told me 90% of the stuff you'll read on the web is garbage, sometimes is silently watch and listen. This post reminds me of a thread posted on a site once, lets call it the "Keep the lights off for a week BS". A dude posted and suggested that in the end of flower about 3 weeks to go, it is best if you turn the lights off completely for 2 weeks. Some poor guy tried it, and he mentioned up to that point the plants were looking great. Unfortunately, make a long story short the guy said the plants never recovered and for the most part was a loss of a nearly the entire crop.
Remember anyone can post, you just don't know if they belong to ISIS or not, many out there will want to see you fail, less competition...
All the great/big grows i've seen use way more light then you might necessary, best grow i've seen a dude used 4 1000W HIS in a small 4'x6' room, many might say 2 would have been great for that size of room, cannabis will use as much light as you throw at it, only thing you can't get it too close to burn/stress the plant.
ChippyMalone
Active Member
I think the biggest problem for novice growers is top believe that they must try to copy the procedures of professionals who achieve maximum yields. A typical newbie would be more successful dropping a seed into decent potting soil and fertilizing once every two weeks with half strength Miracle-Gro for tomatoes. Not because this is a great plan, but because this plan will not stress plants with too much nutrients.
It's surprisingly easy to grow really great cannabis. The hard part is growing the maximum amount of really great cannabis. I've had incredible stuff that came from outdoor plants that were left completely unattended all season except for a handful of slow release fertilizer thrown on the ground. But most newbies work really really hard at stressing out their plants.
ibaba
New Member
dudes follow the crowd, stay with the status quo, keep paying inflated electricity bills , do what you want. If you did YOUR OWN RESEARCH then maybe there is hope, but until then keep doing what y´all know best. If you want proof, I gave you directions, search Joe Pietri, join the FB page, learn something instead of being sheeple.
And Ledbud, "all the research"????? this is basic stuff man, read some horticulture books, educate yourself on some research that has been done. you think cannabis is different to other plants??? its a plant!! and what is "strength duration" ? I was saying reduce the duration, not the strength. And guys remember just because something is done by millions does not mean its correct or the best way to do something. 6hrs of intense light for flowering and the results speak for themselves. Ill post a screenshot in a moment
What are short day and long day plants? | Oregon State University Extension Service | Gardening
When There Is Too Much Light
And Ledbud, "all the research"????? this is basic stuff man, read some horticulture books, educate yourself on some research that has been done. you think cannabis is different to other plants??? its a plant!! and what is "strength duration" ? I was saying reduce the duration, not the strength. And guys remember just because something is done by millions does not mean its correct or the best way to do something. 6hrs of intense light for flowering and the results speak for themselves. Ill post a screenshot in a moment
What are short day and long day plants? | Oregon State University Extension Service | Gardening
When There Is Too Much Light
ibaba
New Member
quoting here :
Since the dawn of time, farmers have understood the role of light in plant growth; it wasn’t until the beginning of the twentieth century that we began to understand the importance of darkness. In 1913, the French graduate student Julien Tournois discovered that hops and hemp grown under glass would flower precociously in winter. He also observed that the plants would flower most rapidly when allowed only six hours of daylight[1].
Tournois’s research ended when he died on the front during World War I, but a few years later two American scientists, Wrightman Garner and Harry Allard, unwittingly expanded upon Tournois’ findings. Wrightman and Allard discovered that certain plants bud more readily when they sense a change in seasons, or rather: Certain plants will begin to bud when they sense a change in the ratio of daylight hours to nighttime hours. Garner and Allard immediately saw the implications for agriculture. They began experimenting on a range of plant species and discovered that day length influences many aspects of plant activity, including dormancy, flowering, and potential yield[2]. In 1920 they noted: “under the influence of a suitable length of day, precocious flowering and fruiting may be induced[3].”
Garner and Allard invented a word to describe a plant’s sensitivity to day length: Photoperiodism. Photoperiodism is a biological response to a shift in the proportions of light and dark in a 24-hour cycle. Photoperiodic plants measure
hours of darkness in order to keep track of the seasons and thus flower at an appropriate time of year.
The two scientists began classifying plants as long-day plants (LDP), day-neutral plants (DNP), and short-day plants (SDP). Day-neutral plants can flower at any time of year, depending on other conditions. Long-day plants flower naturally in high summer, when the nights are shortest. Short-day plants flower naturally when the nights are long: either in early spring or in late summer and early autumn. Short-day species include chrysanthemums, poinsettias, cosmos, globe amaranth, rice, hyacinth bean, and some varieties of marigold, orchid, and strawberry; as well as and a number of other high-value specialty crops.
Short-day is actually something of a misnomer: short-day plants sense darkness, not light. When sensors in your plant’s leaves indicate that each 24-hour cycle includes 12 or more hours of sustained, uninterrupted darkness, your plant’s apical meristems (growing tips) will shift priorities: instead of producing more leaves and stems, the plant will begin to produce floral structure.
In Photoperiodism in Plants, Thomas and Vince-Prue expand upon the concept: ”Perhaps the most useful proposal is that of Hillman (1969), who defined photoperiodism as a response to the timing of light and darkness. Implicit in this definition is that total light energy, above a threshold level, is relatively unimportant, as is the relative lengths of the light and dark period. What is important is the timing of the light and dark periods, or, to think of it another way, the times at which the transition between light and dark take place.”
Biologist P.J. Lumsden also emphasized the importance of precise timing, noting: “…photoperiodic responses require a time-measuring mechanism, to which is closely coupled a photoperception system. Further, the time-keeping mechanism must operate very precisely and it must be insensitive to unpredictable variations in the
environment.”
In other words: absolute darkness is not necessary to trigger a photoperiodic response in SDP, but consistency of dark-to-light ratios is essential. During a 1938 experiment on the effects of light on xanthium, Karl Hamner and James Bonner discovered that the benefits of a long night could be reduced or abolished if the darkness was interrupted for even a few minutes[4]. The converse was not true: the flowering process was not reversed when the daylight hours were interrupted with
darkness.
Growers of SDP crops have been using light deprivation research to their advantage for decades. For example, poinsettia farmers use automated greenhouses to ensure that plants bloom for the Christmas season. More recently, light deprivation technology has caught on in other specialty gardening industries.
Light deprivation is an ideal method for farmers who want to bring a crop to market before the market floods during the harvest season. The method also allows farmers to avoid potential rain damage by harvesting when weather conditions are ideal. Perhaps more importantly, light deprivation offers the opportunity to plant and harvest twice during one growing season and thereby double annual yield.
To utilize light dep, farmers plant crops in hoop houses or greenhouses, which are covered with opaque material for a period of time each morning or evening. The goal is to block sunlight and increase the number of hours the crop spends in darkness: more than 12 hours of darkness will stimulate flower growth in most SDP plants. The challenge is to keep the schedule consistent and to ensure that the darkness is not interrupted, either by unseen rips in the covering, shifts in the covering caused by wind, or human error. As Hamner and Bonner demonstrated, interruptions or inconsistencies in the light deprivation cycle can confuse the plant and slow flower growth.
Since the dawn of time, farmers have understood the role of light in plant growth; it wasn’t until the beginning of the twentieth century that we began to understand the importance of darkness. In 1913, the French graduate student Julien Tournois discovered that hops and hemp grown under glass would flower precociously in winter. He also observed that the plants would flower most rapidly when allowed only six hours of daylight[1].
Tournois’s research ended when he died on the front during World War I, but a few years later two American scientists, Wrightman Garner and Harry Allard, unwittingly expanded upon Tournois’ findings. Wrightman and Allard discovered that certain plants bud more readily when they sense a change in seasons, or rather: Certain plants will begin to bud when they sense a change in the ratio of daylight hours to nighttime hours. Garner and Allard immediately saw the implications for agriculture. They began experimenting on a range of plant species and discovered that day length influences many aspects of plant activity, including dormancy, flowering, and potential yield[2]. In 1920 they noted: “under the influence of a suitable length of day, precocious flowering and fruiting may be induced[3].”
Garner and Allard invented a word to describe a plant’s sensitivity to day length: Photoperiodism. Photoperiodism is a biological response to a shift in the proportions of light and dark in a 24-hour cycle. Photoperiodic plants measure
hours of darkness in order to keep track of the seasons and thus flower at an appropriate time of year.
The two scientists began classifying plants as long-day plants (LDP), day-neutral plants (DNP), and short-day plants (SDP). Day-neutral plants can flower at any time of year, depending on other conditions. Long-day plants flower naturally in high summer, when the nights are shortest. Short-day plants flower naturally when the nights are long: either in early spring or in late summer and early autumn. Short-day species include chrysanthemums, poinsettias, cosmos, globe amaranth, rice, hyacinth bean, and some varieties of marigold, orchid, and strawberry; as well as and a number of other high-value specialty crops.
Short-day is actually something of a misnomer: short-day plants sense darkness, not light. When sensors in your plant’s leaves indicate that each 24-hour cycle includes 12 or more hours of sustained, uninterrupted darkness, your plant’s apical meristems (growing tips) will shift priorities: instead of producing more leaves and stems, the plant will begin to produce floral structure.
In Photoperiodism in Plants, Thomas and Vince-Prue expand upon the concept: ”Perhaps the most useful proposal is that of Hillman (1969), who defined photoperiodism as a response to the timing of light and darkness. Implicit in this definition is that total light energy, above a threshold level, is relatively unimportant, as is the relative lengths of the light and dark period. What is important is the timing of the light and dark periods, or, to think of it another way, the times at which the transition between light and dark take place.”
Biologist P.J. Lumsden also emphasized the importance of precise timing, noting: “…photoperiodic responses require a time-measuring mechanism, to which is closely coupled a photoperception system. Further, the time-keeping mechanism must operate very precisely and it must be insensitive to unpredictable variations in the
environment.”
In other words: absolute darkness is not necessary to trigger a photoperiodic response in SDP, but consistency of dark-to-light ratios is essential. During a 1938 experiment on the effects of light on xanthium, Karl Hamner and James Bonner discovered that the benefits of a long night could be reduced or abolished if the darkness was interrupted for even a few minutes[4]. The converse was not true: the flowering process was not reversed when the daylight hours were interrupted with
darkness.
Growers of SDP crops have been using light deprivation research to their advantage for decades. For example, poinsettia farmers use automated greenhouses to ensure that plants bloom for the Christmas season. More recently, light deprivation technology has caught on in other specialty gardening industries.
Light deprivation is an ideal method for farmers who want to bring a crop to market before the market floods during the harvest season. The method also allows farmers to avoid potential rain damage by harvesting when weather conditions are ideal. Perhaps more importantly, light deprivation offers the opportunity to plant and harvest twice during one growing season and thereby double annual yield.
To utilize light dep, farmers plant crops in hoop houses or greenhouses, which are covered with opaque material for a period of time each morning or evening. The goal is to block sunlight and increase the number of hours the crop spends in darkness: more than 12 hours of darkness will stimulate flower growth in most SDP plants. The challenge is to keep the schedule consistent and to ensure that the darkness is not interrupted, either by unseen rips in the covering, shifts in the covering caused by wind, or human error. As Hamner and Bonner demonstrated, interruptions or inconsistencies in the light deprivation cycle can confuse the plant and slow flower growth.
Plant growth responds to the total amount of light they get each day. Whether that's twice as much at noon or the same amount all day, what matters to the plant is the total daily light it gets.
That means you can run 1000 umols for 6 hours and 500 umols for 6 hours, or you can run 750 all 12 hours. Growth should be roughly the same. 3000 umols is about the limit to what our plants can use.
That means you can run 1000 umols for 6 hours and 500 umols for 6 hours, or you can run 750 all 12 hours. Growth should be roughly the same. 3000 umols is about the limit to what our plants can use.
VonDankenhoek
New Member
"cannabis will use as much light as you throw at it" nonsense
"A friend that really helped me learn told me 90% of the stuff you'll read on the web is garbage, sometimes is
silently watch and listen."
The veracity of that advice hinges on the sites you visit to glean your information. There are many sites populated by experienced growers sharing excellent advice. There is also an exhaustive amount of validated horticultural science freely available. AND there is no shortage of ossified nit wits claiming LEDs dont work and never foliar cannabis in flower, guano is essential etc...the quality of the information source is critical.
Would you believe a 'scientist' who is lecturing at the creation museum?
"A friend that really helped me learn told me 90% of the stuff you'll read on the web is garbage, sometimes is
silently watch and listen."
The veracity of that advice hinges on the sites you visit to glean your information. There are many sites populated by experienced growers sharing excellent advice. There is also an exhaustive amount of validated horticultural science freely available. AND there is no shortage of ossified nit wits claiming LEDs dont work and never foliar cannabis in flower, guano is essential etc...the quality of the information source is critical.
Would you believe a 'scientist' who is lecturing at the creation museum?
Equanimity
New Member
A museum dedicated to creationism would be a fun day out.
Honestly what the fuck they'd put in it is beyond me.
So what i'm reading here is that plants like 6 hours of light and 18 in the dark?
I must try that once i'm in my new space.
Still stumped by the LEDs though.
I mean, those Advanced LEDs are a dear do compared to the mars hydro, who's top model is the same price as a mid range Adv.LED, so it makes things scary and weird.
Honestly what the fuck they'd put in it is beyond me.
So what i'm reading here is that plants like 6 hours of light and 18 in the dark?
I must try that once i'm in my new space.
Still stumped by the LEDs though.
I mean, those Advanced LEDs are a dear do compared to the mars hydro, who's top model is the same price as a mid range Adv.LED, so it makes things scary and weird.
VonDankenhoek
New Member
Creation Museum - Creation, Evolution, Science, Dinosaurs, Family, Christian Worldview | Creation Museum <--- bro there are republican US senator creationists. Blind faith is a huge problem around the world and even in cannaland.
Mars Hydro 3w work great.This bud is currently growing under an almost 2 year old 900w mars
Mars Hydro 3w work great.This bud is currently growing under an almost 2 year old 900w mars
Equanimity
New Member
Yes. My government also contains creationists. When I was young I didn't mknd but now it scares me.
Heads that aren't quite level don't make the best calls of judgement do they lol
That's quite a frosty nug, but small... Is that one of your smaller ones? My most recent harvest has consisted of some beaver tails.. Under a 600w hps tho.
Heads that aren't quite level don't make the best calls of judgement do they lol
That's quite a frosty nug, but small... Is that one of your smaller ones? My most recent harvest has consisted of some beaver tails.. Under a 600w hps tho.
VonDankenhoek
New Member
[
Ya man that pic is popcorn from deep in canopy.
These are from last run.
This is jack from last year
Ya man that pic is popcorn from deep in canopy.
These are from last run.
This is jack from last year
Equanimity
New Member
Very nice examples there bro, should have opened with those lol
The large thing... did you harvest that too early?
The large thing... did you harvest that too early?
LEDBud
Well-Known Member
Could you add a photo to the thread of the beaver tail buds with a size reference , also the particulars of the strain. Thanks !
VonDankenhoek
New Member
Thanks man.
It looks that way doesnt it...I dont recall what was going on. it might have been a space or heat issue.
Those other buds are sugar punch.
Equanimity
New Member
Some of the ones on the back row were like hand grenades.
Took literally a week to dry that.
The ones at the front are lemon kush, the back ones are some weird inbred blue dream cross
Those particular plants are still going, waiting for the second bunch to fatten up.
LEDBud
Well-Known Member
If you get a chance I wouldn't mind seeing some of the beaver tail buds
Also do you have any photos of the hand grenade buds in you hand ?
Waiting with baited breath now , I love Big Buds.
Also do you have any photos of the hand grenade buds in you hand ?
Waiting with baited breath now , I love Big Buds.
LEDBud
Well-Known Member
The buds have some serious trichomes , the Big Bud has some nice crystal on it to , excellent job.
Perfect examples to show what LED panels can and will do, very educational !
Perfect examples to show what LED panels can and will do, very educational !
[
Ya man that pic is popcorn from deep in canopy.
These are from last run.
This is jack from last year
[
Ya man that pic is popcorn from deep in canopy.
These are from last run.
This is jack from last year
Beaver tailed! Wowza!
