inferred light and thc....help/info.

flashgee

Well-Known Member
i been told that inferred light will help with thc production when used in the last 2 weeks of flowering ? i found an old 150w inferred light (the kind poeple used as a tanning aid in the 80s).anybody used anything like this on there plants ? bongsmilie
 

awry

Well-Known Member
i dont know about inc the thc levels, but i do know whatever the fuck it puts out, the type of light, makes plants grow soooooooooooooooooooooo fast vertically..


once i plant my seedlings in the soil i put a 100w infared bulb next to them and keep em 80 degrees, and within 2-3 days they are up and stretching sooooo dam far..

i have a suspicion that the infared light does put off a shitload of red light or some shit and it makes the plants go bonkers...


i will try this the last 2 weeks of flower.. but the bad thing is it puts of enormous amounts of heat..
 

flashgee

Well-Known Member
thanks for your in put awry...i think i will give it a go on may be just one plant in the last 2 weeks see how it goes,your right about the heat to,thou i should be able to manage this.does any body know more about the effects of infrared lights on plants ?
 

Jonus

Well-Known Member
Infrared isn't used by plants for food, phytochromes sense infrared and trigger the plants grow phase assuming that the presence of infrared means the lights are on or sun is up, and the opposite when infrared is not present, telling the plant the lights are off or sun has set.
 

Jonus

Well-Known Member
Plants use mostly light from the blue spectrum around 430-480nm and the red visible spectrum at around 660nm - 700nm, called photosynthesis. Chlorophyll in weed is seen as that green stuff in the leaves and is where the light absorbing takes place. The absorbing parts of the leaf that convert light to energy have the ability to absorb those ranges of light and nothing else. There are other parts of the plant that recognise infrared light and UV light but they are not associated with light to energy.

Infrared light/radiation ranges from 750 to 2500 nm so it is reflected off the plant leaves. In fact there is one status where a plant will begin to absorb infrared and that is when it is in stress. When stressed it will begin to reflect the blue and red spectrum of light and absorb infrared.

This is how satelites are able to image the health of plants from above.

The only thing it seems that plants use infrared for is as a trigger for chemical reactions like the chemical reaction to tell the plant the sun is coming up or going down, which acts as a kind of sensor or switch to turn off and on the process of photosynthesis.
 

born2killspam

Well-Known Member
Heres a diagram that shows the spectra of various pigments.. The total absorbtion of a plant will depend on the various levels of pigments.. Too bad it apparently doesn't show the spectrum for the compound(s) responsible for what Jonus was saying..
 

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Jonus

Well-Known Member
Well it does in a kinda opposite sense. All absorbtion drops to nil after 700nm, infrared starts at about 750nm.

The chemical in plants called phytochrome signals the plants based on the balance of red and infrared light. When there is more red than infrared then the plant assumes the lights are on. But around sundown there is more infrared than red so the plant assumings its heading to night cycle via chemical releases.

The reason people are getting stem stretch using infrared spotlights either as lamps in with their grow lamps or attached to cameras with infrared sensitive lenses is as mentioned above and is the same reason why plants stretch like shit under normal incandescent light.

If there is more infrared light hitting your plants than red light, as is the case if you are using a metal halide which is mostly blue light spectrum or a 14000 kelvin CFL which is all blue along with an infrared spotlight, or, an incandescent light which is mostly infrared, then the infrared spotlight or incandescent light can in some cases fool the plant into thinking the lights are still off or that the plant is in the shade, and over a period of days it may stretch to try and find light even though it is surrounded by it much like lower branches stretch out of the shade to find light.

The other thing to watch out for if youre using infrared lighting in with your vegging stage is that it may also trigger early flowering.
 

Big P

Well-Known Member
they say since infrared harms the plant the plant creates more thc to
protect itself from the harmful rays




it has been noted that all the best cannabis from around the world comes from regions with the highest amount of infrared light


creating the theory that the reason plants from these regions are so potent is cuz the plant has been breeding for high thc levels to support its viability in harmful infrared rich environments
 

born2killspam

Well-Known Member
Perhaps the highest infrared is near the equator since any component of sunlight will be higher there, but moreso the highest UV is at the equator since the more overhead approach reduces scattering which tends to occur more at shorter wavelengths.. UV-A&B are known to increase THC production..
 

Jonus

Well-Known Member
Thing is infrared light doesn't really harm the plants, it is reflected off the leaves even more than green light is and people use green lights in their grow rooms during the dark periods because of that fact.

The problem as I stated earlier is using infrared during the light cycle will cause stretch and can stress the plant if the infrared is used intermittedly. And some scientists are speculating that infrared can be used to trigger the flowering mechanisms in plants.

The rays that are harmful would be parts of the UV spectrum which would also be more abundant in the areas you are saying are abundant in infrared.

One of the reasons postulated by scientists as to why plants do not utilise infrared is not that it is harmful but in fact that it is too weak a light source to be of any benefit as food for the plant, so they think plants developed pigments to reject infrared on that basis as an illegitimate food source.

Whereas UV on the other hand is more powerful a light than visible light, in fact its so intense and unregulated that it can do serious damage to plants resporatory cycles, your standard sunburn, destroying amino acids in plants, and even fucking with their genetics causing mutations (which I have seen in grows where the grower has played around with UV) and of course death. Which is why most of the plants defensive systems, in terms of light, are built toward shielding UV, plant wax, bark, plant hairs and special pigments.

I guess in areas where UV intensity is stronger plants would have adapted by...developing thicker skins so to speak which may account of better stem uptake and a desire to bud quickly with the immenant threat of death forever at their door from cell destroying UV light. Just a guess though.
 

xogenic

Well-Known Member
jonus or anyone who knows i have a question about the uv

i used to have an iguana and unfortinatley he passed away a few months ago :( but i do have 2 reptile uv bulbs

there 15 watts each

now i am using a 250w envirolight for veg

would incorporating the 2 reptile bulbs into my veg area make any difference
the bulbs are called reptiglow

i have read up where people have used them on there own but i was just thinking they might not make much differance since i am using the 250watt version of environlight

also i was thinking of mounting them on the side's of the plants to make shure i get the lower branches as sometimes the light has trouble reaching as i have limited space for them at the moment


infor about the light's

Tropical Terrarium Lamp : 25% UVA : 2% UVB



  • Full Spectrum Daylight Lamp
  • For reptiles with lower UV requirements
  • UVA (25%)stimulates appetite, activity and reproductive behavior
  • UVB (2%) promotes Vitamin D3 synthesis
  • Stimulates terrarium plant growth
  • Suitable for all types of reptile and amphibians
  • Recommended in combination with Repti~Glo 5.0, 8.0 or similar
any help would be great
 

born2killspam

Well-Known Member
Reptile bulbs are great for UV! Its UVC that REALLY trashes em like Jonus said.. The atmosphere blocks the vast majority of UVC..
In actuality, it depends on the duration these types of light are presented as to how a plant can handle them.. Photosynthesis doesn't turn on like a light, it builds up through the day like a fire.. Plants become saturated with high energy electrons, and then its more likely that subsequent photons will push them beyond the limit and cause them to undergo undesirable chemical reactions like actually respirating O2 etc.. High energy UV photons are obviously capable of exciting an electron further than lower energy photons in a single go.. THC crystals (and various pigments) can reflect, and lower the energy of such photons via fluorescence.. Too much UVC though can't be metabolized in this way very productively at all, and is capable of destroying cannabinoids, so stay away from germicidal UVC lights..
 

Rotfeast

Active Member
jonus or anyone who knows i have a question about the uv

i used to have an iguana and unfortinatley he passed away a few months ago :( but i do have 2 reptile uv bulbs

there 15 watts each

now i am using a 250w envirolight for veg

would incorporating the 2 reptile bulbs into my veg area make any difference
the bulbs are called reptiglow

i have read up where people have used them on there own but i was just thinking they might not make much differance since i am using the 250watt version of environlight

also i was thinking of mounting them on the side's of the plants to make shure i get the lower branches as sometimes the light has trouble reaching as i have limited space for them at the moment


infor about the light's

Tropical Terrarium Lamp : 25% UVA : 2% UVB



  • Full Spectrum Daylight Lamp
  • For reptiles with lower UV requirements
  • UVA (25%)stimulates appetite, activity and reproductive behavior
  • UVB (2%) promotes Vitamin D3 synthesis
  • Stimulates terrarium plant growth
  • Suitable for all types of reptile and amphibians
  • Recommended in combination with Repti~Glo 5.0, 8.0 or similar
any help would be great
That wouldn't do anything for veg. But it would increase THC production in mid to late flowering

I plan on using a 50w halogen bulb. If you take off the glass shield on a halogen bulb, they give off a good amount of UV-B, which is the kind you want(or so I've heard). Plus halogens have a nice wide light spectrum.
 

marchold

Well-Known Member
That wouldn't do anything for veg. But it would increase THC production in mid to late flowering
I read another post where the guy had used UVB bulbs and he said his plants would suffer from sunburn if he did not expose them to it in the veg stage too.
 

xogenic

Well-Known Member
i like where this discussion is going

so you recon if i used them through both veg and flower i could benefit and also kudos to borntokill and rotfeast for the halogen idea i have one hanging in my garden i don't use :D

and kudos to every one for there input :)
 
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