green light spectrum?

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ricardezra

Member
i posted a post to see if anyone else use black lights with there grow.some one said "have i tried a green light?" i was like no marijuana does not use green spectrum that is why when lights are off you can use a green light and it wont effect the flower they are not harmed!so they do not use that spectrum if there is no effect to the growth this is what you get when you use the blacklight when the lights are off during flower.see how frosty they are and with a lot off light they get tight when lights are on so I did my research and tried it
 

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baroque

Member
The UV from the blacklight is what stimulates thc and thc-v production if you consider thc as sunscreen that the plant produces to protect it's self.
You may want to do something with your second pic because of the back ground
 
MeJuana

MeJuana

Well-Known Member
Ok so you are saying lights off and your black lights come on? And yeah fix your second photo bro it isn't good for you.
 
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ricardezra

Member
MeJuana said:
Ok so you are saying lights off and your black lights come on? And yeah fix your second photo bro it isn't good for you.
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yeah they get light 24/24 the entire time 12 hours regular light and 12 hours blacklight during flower.my next grow i will do this the whole time. 16 regular light and 8 hour blacklight during veg iwant to see what happens im thinking i should get really strong plants
 
MeJuana

MeJuana

Well-Known Member
Ok well if you start a plant inside on 12/12, then you move outside in May for example it will still finish even though it is on too much light. So my advice is if you are getting pistils then you know why.
 
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ricardezra

Member
MeJuana said:
Ok well if you start a plant inside on 12/12, then you move outside in May for example it will still finish even though it is on too much light. So my advice is if you are getting pistils then you know why.
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it would not get too much light.marijuana tells time with red light and use blue light for veg and photosynthesis so its logic to add more blue and shine blue even when the lights are off.there is no red spectrum so the marijuana thinks its lights off but they still photosynthesise,even with lights off.they should grow faster because they get blue light "photosynthesis" even when the lights are out.
 
vh13

vh13

Well-Known Member
So a black light running 24/7 won't prevent flowering, eh? If it can trigger flowering then it shouldn't cause hermies, right? Interesting.

How many watts of black light do you recommend per square foot of coverage? Is it a small supplement to stimulate thc(v), or do you actually feed the plants with 'em?
 
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ricardezra

Member
vh13 said:
So a black light running 24/7 won't prevent flowering, eh? If it can trigger flowering then it shouldn't cause hermies, right? Interesting.

How many watts of black light do you recommend per square foot of coverage? Is it a small supplement to stimulate thc(v), or do you actually feed the plants with 'em?
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no that is black light with cfl hps etc.only use black light when the lights are off. I just was woundering does anyone else use black light with there regular light. and I have been getting 8 out 10 females with my last three grows,one grow i got 10 out of 10 females no shit!got pictures
 
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ricardezra

Member
ricardezra said:
no that is black light with cfl hps etc.only use black light when the lights are off. I just was woundering does anyone else use black light with there regular light. and I have been getting 8 out 10 females with my last three grows,one grow i got 10 out of 10 females no shit!got pictures
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ooh and i just use 2 cfls blacklight when the lights are off they sale them at home depot you just need two for my closet but if you have more plants I would use as much as i could with in temp you dont want your plants to get hot when the lights are off
 
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gobbly

Well-Known Member
ricardezra said:
it would not get too much light.marijuana tells time with red light and use blue light for veg and photosynthesis so its logic to add more blue and shine blue even when the lights are off.there is no red spectrum so the marijuana thinks its lights off but they still photosynthesise,even with lights off.they should grow faster because they get blue light "photosynthesis" even when the lights are out.
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do you have a source for this? I've seen the opposite info (at least it appears opposite on the surface), from some reputable books, about the plants use and function of the 455 and 475nm bands in flower, and I'd be curious to read a little more on it if you have a source.
 
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ricardezra

Member
gobbly said:
do you have a source for this? I've seen the opposite info (at least it appears opposite on the surface), from some reputable books, about the plants use and function of the 455 and 475nm bands in flower, and I'd be curious to read a little more on it if you have a source.
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maybe this will help you understand light spectrumhttp://www.weedfarmer.com/cannabis/lights.php red light is how they tell time more red light hours say 14 to 24 they stay veg less red hours they flower they they use blue light for photosynthesis look it up
 
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gobbly

Well-Known Member
ricardezra said:
maybe this will help you understand light spectrumhttp://www.weedfarmer.com/cannabis/lights.php red light is how they tell time more red light hours say 14 to 24 they stay veg less red hours they flower they they use blue light for photosynthesis look it up
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I understand light spectrum quite a bit better than the average user here... I read the page, that is just like every other rather basic analysis of requirements, and besides, I see nothing there that really backs up your statement that the hormone that causes flowering is only degraded by a 600+ nm spectrum. I am not saying you are wrong, and there is certainly a reason plants respond more to red bands in flowering, since this is what a plant encounters in nature; as they reach the end of their lifespan they actually do receive higher levels of red bands. I'm not saying you are wrong, but imo you're making a pretty bold statement that contradicts much well researched literature I have read, and I'd like to see some real sources...

Not sure if you're aware but flowering is triggered by a hormone which is always being produced by the plant, but degrades incredibly quickly when exposed to light, which is why a certain number of dark hours are required for flowering, so if I'm understanding you properly you are saying that this hormone is ONLY degraded by light over ~600nm.
 
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ricardezra

Member
gobbly said:
I understand light spectrum quite a bit better than the average user here... I read the page, that is just like every other rather basic analysis of requirements, and besides, I see nothing there that really backs up your statement that the hormone that causes flowering is only degraded by a 600+ nm spectrum. I am not saying you are wrong, and there is certainly a reason plants respond more to red bands in flowering, since this is what a plant encounters in nature; as they reach the end of their lifespan they actually do receive higher levels of red bands. I'm not saying you are wrong, but imo you're making a pretty bold statement that contradicts much well researched literature I have read, and I'd like to see some real sources...

Not sure if you're aware but flowering is triggered by a hormone which is always being produced by the plant, but degrades incredibly quickly when exposed to light, which is why a certain number of dark hours are required for flowering, so if I'm understanding you properly you are saying that this hormone is ONLY degraded by light over ~600nm.
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no its the oppisite less red spectrum.when the lights are on 16/8 well they get 16 hours off red and all other spectums.now when you switch to 12/12 how does the plant know? its getting less red now! lets look at this,you can use a green light and not effect flower why? it does not use green.its still getting light so it should stop flowering right?what about if you use a blacklight when the lights are off?well now it still photosynthesis with no effect to flowering are dark period. well what makes the plant know its dark? the red spectrum that it is missing.
 
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Ionix

Member
This doesn't make sense. If there is light, there is light or photons hitting the plants. Then there is a wavelength, now it utterly could be useless but it won't let the plant switch over to breathing oxygen for ATP (energy).

P.s. Marijuana uses temperatures and if the days are increasing or decreasing in hours of light, lol. N depending where you are in the planet there is different wavelengths coming in seasonally. Plus time is foolproof. Evolution is older than us, n we got biological clocks.
 
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Ionix

Member
Uhm.. You can use sprays, I even have made some before for autofert (feminised seeds).

I'm still really confused, so is this a special chemical that glows green or is it painted, plastic covered (etc.)? I don't think that you are realizing if there's energy to be had, it will be.

N btw.. There are special lighting situations for seasonal growth. The plant likes certain veg spectrums then some for later expected in the year. The plants do go off of time of light and temperature in a day but they also might think they're late because I think blue is foliage and red is stem and green is just chlorophyll (xD)
 
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ricardezra

Member
Ionix said:
This doesn't make sense. If there is light, there is light or photons hitting the plants. Then there is a wavelength, now it utterly could be useless but it won't let the plant switch over to breathing oxygen for ATP (energy).

P.s. Marijuana uses temperatures and if the days are increasing or decreasing in hours of light, lol. N depending where you are in the planet there is different wavelengths coming in seasonally. Plus time is foolproof. Evolution is older than us, n we got biological clocks.
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well then why when I use a blacklight when the lights are off the still continue to flower?i use light on my plants 24/24 the entire grow.I use regular light for daytime and at lights off blacklight only so thats24/24 right? i still switch to 12/12 but 12 lights out gets a blacklight heitre is a plant to prove
 

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freddiemoney

freddiemoney

Well-Known Member
Have you done a side by side grow with two clones? One would get the black light and one wouldn't. The pictures don't really prove anything other than showing that your plant is flowering. I've seen a room with light leaks so bad that never got darker than twilight inside and the plants were still flowering.

We need some evidence that your black lights have made some kind of difference. People have been hearing this "Old Hippie's Tale" for years.
 
Brick Top

Brick Top

New Member
ricardezra said:
well then why when I use a blacklight when the lights are off the still continue to flower?
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What are you actually asking? Are you seeing visible growth during hours that normally are dark and claiming it is due to using a blacklight during those hours or are you saying something else and asking if that is not the cause or what?
 
MeJuana

MeJuana

Well-Known Member
He is saying that since he has his black light on 12 and normal lights on 12 that is proof conclusive that black like doesn't interrupt flowering, but as I said before if I move a flowering plant from 12/12 to outside in 18 hours of light it will still continue to flower.. So his test is inconclusive, this test needs to be ran through the entire process and not added late in the game. Then the evidence is conclusive that that plant will STILL CONTINUE TO FLOWER until then you have noted what all of us out door growers have, a plant put into 12/12 will usually finish, sometimes revert and your info is inconclusive. Still interested in following though.
 
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ricardezra

Member
freddiemoney said:
Have you done a side by side grow with two clones? One would get the black light and one wouldn't. The pictures don't really prove anything other than showing that your plant is flowering. I've seen a room with light leaks so bad that never got darker than twilight inside and the plants were still flowering.

We need some evidence that your black lights have made some kind of difference. People have been hearing this "Old Hippie's Tale" for years.
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hey I dont know,I just used logic when i learned that plants use red spectrum to tell time and used blue spectrum for photosynthesis it just made sense.when the lights are off use blue light on them so they can still photo,and not hurt the flowering.
 
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