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I think that you simply cannot remove all the stimuli that the plant uses to 'set' its internal clock.... but my advice would to keep a detailed grow log of everything

I meant no "normal" (12/12 flower) cannabis plant, sorry thought it was a given on here..... Experiments show that plants can "tell" what time it is and retain their sensitivity to light during what they percieve as "night", even when placed for days in complete darkness...SDPs will not flower...

Im just trying to lower the R/FR ratios to something closer to outdoors. I also want to replicate a drop in light levels and a slight increase in FR before and after the main lights go on... Fluoros have about a R/FR of about 6-7:1 HPS is 2.5-3:1, while outdoors is 1.1:1 and it drops down to...

plants have internal clocks, the response to light is dependent of what "time" of day it is....under 24 hours of light no plant will flower...this is due to an increased sensitivity to light during the time its supposed to be dark (last 12 hours of every 24)....plants put under constant darkness...

far red does alot of things though besides stretching... like this Light Reflected from Red Mulch to Ripening Strawberries Affects Aroma, Sugar and Organic Acid Concentrations Strawberry (Fragaria ananassa) fruit size and flavor are important to both growers and consumers. Plastic mulches are...

Of course plants are effected by the spectrum, I can provide countless examples of plants responding positively to red/far red ratios even when the amount of light is lower than the controls... So obviously certain spectrum's cause different reactions in plants.....If thats not bias, I dont know...

Around 900K is when objects stop emitting visible light and this chart shows a big increase from 660nm to 730nm when around 1000K. At 3000K there is more Far-Red but the spectrum just does not drop fast enough. There is still a bunch of Red, which Id rather avoid... Also there is barely even a...

I've been thinking of ways to achieve more Far-Red while still maintaining a high ratio of FR/R. I'm thinking I can use a couple CLEAR incandescents wired in series, and this will drop their voltage causing them to run cooler. Instead of 2700K, like most lights, Id achieve about 1000K. Though...

Its all theory right now, and currently I'm doing a seed grow or I'd probably test it out. Most people dont have both lights, but I just so happen to. You might not even need a HPS though, just something that heats up and produces a deep-red light and slowly cools down.... I just was trying to...

Has anyone thought about how the "glow" of hps bulbs upon shutdown affect the flowering of our plants? The arc tube burns around 700C which is about 1000K, and at those temperatures produce a radiation peak around 3,000nm. This is in the IR range, but there is also some visible light...

these bulbs do not emit uvc and uvc doesnt hit the earths surface... also heres a great book about the effects of UV on plants, look around page 91 Abiotic Stress Tolerance in Plants By Ashwani K. Rai, Teruhiro Takabe...

why do you think there is no UVC on earth??? is the light reflecting off silver...its called ozone Ozone is created by the photodissociation of oxygen by UVC. Oxygen and other molecules are being torn apart, and although the other molecules are not part of this story, they do dissociate, as...

oh ya everyone sells silver reflectorss:? the graph clearly shows aluminum reflects about 90% of light+UVB...silver barely reflects UVB and EVEN MORE UVC!!! besides uvc is not emitted by these bulbs and if it was..ummm OZONE!! i dont say this much but your obviously too damn high im cheap so...

how did you test potency? and dont say by smoking it! lots of factors affect the high produced

ya...go for it prove me wrong but heres some info for ya http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pubmed&pubmedid=16595397

ok where to start... nowhere on earth provides only 6-8 hours of light without freezing, around 30 lat. the shortest day is 10 hours and anything farther north occasionally has an early frost... I dont believe the plant would adjust to an 18 hour day, no matter what... I know that the...

please dont just copy and paste, I have at least ten different scientific studies which show a direct link with potency and water...I know some things are controlled by the plants genotype but many things are affected by enviroment. I do not neccesarily think this will increase overall yield...

all of "you people" who posted on this topic....plants can tell when the sun should set, and not having a 24 hour cycle would only lead to problems...at least someones thinking outside the box though

Aluminum reflects mostly all wavelengths very well, while most surfaces dont reflect UV light....heres a chart

umm what about "Circadian rhythm"...plants have internal clocks you guys need to learn more about plants.... this method will not work, plain and simple......unless hermies count, of course