Trichomes, THC and UVB light.....

[kindprincess]

I totally agrtee with you of that principle....did you get a chance to read that piece (Seedless Marijuana - the hoax) or maybe you have seen it from before? I found it made for an interesting read....

no, but i can tell you that properly cared for plants will be just as potent with seeds as without. no doubt there

 

[Harkin]

i have lizards, but they do not require uv.

i've know for years that uvb makes a difference in potency. however, i've not had any complaints for my stuff without it, and i like the principle, "if it ain't broke, don't fix it".

but, since i have something i can compare against with no bias, i figure it couldn't hurt; each uvb bulb is only 26 watts

Cool, mines 25w, only got 1 for 1 plant though. Yeah forsure if ain't broke don't fix it, but then again we can always improve and progress right? Well lets hope...

Good Luck

 

[tahoe58]

that's interesting....I have read that as well. and back in the days....the talk became sensimilla....that was the only weed that was worth anything...and then it became if you had weed with seed in it...well it was crap.....the perpetuation of these stories is a little astonishing when I start to learn a little more....I have been out of this world for the better part of thirty years....and I am having a fascinating time learning all over again....

no, but i can tell you that properly cared for plants will be just as potent with seeds as without. no doubt there

 

[skunkushybrid]

no, but i can tell you that properly cared for plants will be just as potent with seeds as without. no doubt there

That sounds very reasonable... although yield would be down, it seems reasonable that potency won't/shouldn't be affected. We've been taking this plant in the wrong direction.

 

[tahoe58]

I do believe we may have been doing that...wait, well actually....I am only starting over again here, so hopefully I can totally benefit from this new direction....if that is what we should be doing....how friggin' exciting is THAT!??

That sounds very reasonable... although yield would be down, it seems reasonable that potency won't/shouldn't be affected. We've been taking this plant in the wrong direction.

 

[cjsesh00]

I have a 26w uv light and it only goes on for a little while during the day, and I have been keeping it away from the plants just in case and it has done some serious damage to the leaves. it is killing them! be careful everybody

 

[skunkushybrid]

I have a 26w uv light and it only goes on for a little while during the day, and I have been keeping it away from the plants just in case and it has done some serious damage to the leaves. it is killing them! be careful everybody

You sure it's the light? You got a pic'?

 

[cjsesh00]

I can post a pic later, but yeah I am sure. I have it at a 45 degree angle from one side of the grow room and it fried all the leaves that were facing it. Like a sunburn. I already have a lot of light in there, running two HPS and some fluoros on the side. But I keep the temps steady just under 70 all day with some fans and a/c. I have seen burnt leaves before but not like these. They are almost black and have all sorts of strange discoloration from a real bright, not pale, yellow to purple and brown. There seems to be damage to the upper parts of the long fan leaf stems, real dry and brittle and the same damage around the veins of the leaves. they were perfectly healthy before hand and growing like crazy, they are definitely stunted now and seem to be getting worse, the strange thing is... I have 2 blueberries that have been everything but easy and they appear just fine and getting fatter still. my other four have the same identical burns and discolorations on all leaves that were directly facing the lamp. I made a cone reflector for the bulb, cfl style, out of mylar. I wonder if it has 'hot spots' or if it is altering the UV somehow. I have not heard of anybody else having this problem before. I have read of kids using just reptile lights for their entire grow and having nothing bad happen.

 

[devilwacause]

What type of light are you using, and until somebody tries it with LEDs set to the specific wavelength of UVB UVA etc we cant be sure it is UVB causing the damage or a mixture whatever. I agree for everybody diving into this to be careful, but lets not assume UVB is exactly what is causing this to happen to this plant.

 

[Harkin]

I've had my reptile UVB on for a few days now and nothing bad has happened. I'm not saying that it hasnn't caused yours to happen but it does seems strange. What are the specs of the bulb? I've had mine on for the full 12hrs, also with mylar and no burns at all

 

[cjsesh00]

whatever it might be, I had no problems before implementing this light. I have had several successful grows the past few years and this is something I have not seen before. But I agree, it could be anything. My plants only vegged for about 3 weeks in soil, I like smaller easy to manage plants, they are quite predictable. I have a strict lighting, watering, feeding schedule, and at 2 months in I know these plants really well now. The onset was overnight almost and getting really bad really fast, and began the morning after the first day I used the UV light, so I am convinced this is the cause all the way, but since I am not a scientist obviously I dont know for sure. I am on week five of flower and the buds even are getting a little gross looking. If this is the case would it be worth chopping them down before they are just nasty? since i didnt veg long i typically get a shorter flower period as well by about 2 weeks so i am not far off, and the sick plants have about 10% orange hairs. I guess the situation is that right now i could get half decent buds, or I could wait and see what happens and get shit that I cant smoke and turns to dust. prob not even good for butter. but I do have my two glossy blueberries that are magically just fine so the whole grow wasnt a waste. I have a scope but all the trich's are still really clear so I dont think they are quite ready. maybe I could just smoke one now and see if it's any good, even though it tastes like shit and makes me a little nauseated. oh yes, its a 26w reptisun 10.0. pretty standard, but maybe mine is defective or something

 

[Harkin]

hmm, I have the repti-glo 10.0 26w, like you say maybe it's defective

 

[cjsesh00]

yeah its a reptile bulb from petco. zoo-med repti-sun 10.0 uvb desert 26w 10%uvb 30% uva , got the box right here. Such a deceiving little guy, it has to be defective or something. now that i think about it, my 2 blueberries were on the far side of the grow room that first day and prob werent getting hit by its light from so far away. i had it at a 45 on one end of the room so i could hit the plants on top, and some on the sides, and not have it under my two HPS where it would be blocking light, if that makes sense, well whatever has happened happened, could be the light, might not be but i dont know what else it could be. maybe root problems that I cant see. the only 2 variables are strain and the reptile light. the 2 BB's werent harmed, and the morning after the first UV day problems set on quickly like nothing i've seen, my camera doesnt do great close ups so i'll get some of the bigger fan leaves that FELL off and look disgusting. but they fell several hours ago and the colors have changed alot

 

[skunkushybrid]

This could always be a strain thing. If it's only the leaves affected that are next to the UV lamp, then it's fairly safe to assume that this is the cause.

Although, I must add that flowering is genetic. A plant will flower for a set amount of time, no matter what size it is.

 

[Harkin]

Sorry just so it's clear, is it a fluorescent, cfl , mercury vapour bulb?

 

[skunkushybrid]

Take a look at this beauty. Now this is what I call POWER.

UV300 Ultravitalux 300W ES Osram

 

[Harkin]

And that is how far I have it from mine, hope you get yours sorted

 

[cjsesh00]

well as far as flowering time, I always wonder, do you guys count the first 2 weeks of 12/12 as 'flowering' time or do you consider it pre-flowering? I grow mine til they are done regardless but have always been curious as so many people rely on these figures and publish flowering time w/their seeds. It is a CFL bulb. I have it in a 60w adjustable desk lamp with one of those flexible necks that you can angle just right. I line the inner hood of the lamps reflector with a cone of mylar to reflect more light than the polished aluminum that the hood is originally made from. I really am more bummed out than anything, and no sense chasing the snake after it already bit me.

 

[Harkin]

Take a look at this beauty. Now this is what I call POWER.

UV300 Ultravitalux 300W ES Osram

Ahahaha for that oh so crispy bud, one hit and you get a tanning

 

[skunkushybrid]

Flowering time should start from the moment you instigate 12/12. Usually my seed plants will pre-flower while under 24/0. So after 24 hours of 12/12 they are covered in pistils.