Trichomes, THC and UVB light..... - Page 11

cjsesh00 · #**101** 11-30-2007, 02:22 PM

yeah it was all my fault I think. Nothing to be paranoid about, but indirectly everyone here helped me figure out that I just did it WAY too late. I was off on my week count by 2, beat that for a bonehead mistake. that CFL bulb.. it is a pretty dainty little thing compared to these HID's but it packs a punch apparently so we know it is doing something as far as UV goes. My girls werent as young as I thought they were! their old saggy...leaves.. got torched. haha, shit. lucky to have got some lemon trainwreck last night and I think it is friday night officially, and so it begins!

cjsesh00 · #**102** 11-30-2007, 02:26 PM

thanks skunky. I hope I have not sounded all smartsy and trying to be intelligent, just trying to paint the picture and convince everyone in a nice way it was the light and to use some caution. It seems to be kind of a craze these days to talk about UV bulbs and I knew this morning i made a mistake and cant imagine anybody else having a worse experience with it so i thought i'd write it up since i had the day off. im ready to get some new sprouts going now and move on in a couple weeks. but only after the blueberries are done!

skunkushybrid · #**103** 11-30-2007, 02:30 PM

Quote:

Originally Posted by Harkin

I had just started 12/12 when I introduced the light, and it flowered a few days later. It would make more sense to use the UVB from the beginning but I can't see why the plant wouldn't know what to do if introduced later on, you reckon it would loose the ability? And no I can't see why we are on the wrong track, we are only using light that it would naturally get right? How is that bad?

Chemical processes are complicated. So complicated in fact, that scientists know very little about how they work. It could be that these strains we are growing are too domesticated to take UV at such a late stage... and we would need to be extrememly careful during the veg' stage...

Did I say wrong track? I don't know... my head is in a million different places at once, at least it feels like it is.

tahoe58 · #**104** 11-30-2007, 02:51 PM

holy crap...missed today...and had to go through 4 pages of great great info....

Quote:

Originally Posted by 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

this is most interesting....I am glad I had a chance to read through it all at once. thanks so much for piping in, and your contribution to this discussion is huge...

Quote:

Originally Posted by skunkushybrid

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

UV300 Ultravitalux 300W ES Osram

that a friggin' monster!

Quote:

Originally Posted by skunkushybrid

I think they're good, or at least better now than back then... I don't know. wtf?

Plants grow in UV all the time... your little bulb shouldn't have caused that much damage unless your strain is genetically unused to UV.

I can see this happening to a lot of the modern strains. Breeding indoors leads to domestication of the plant, and this can happen very quickly.

Maybe it's because they are in flower. During the plants natural cycle there would be less UV getting to the plants anyway... and if they didn't have any during veg' this would lead the plant to believe it is an environment with very little UV. I think adding it this late to your grow may have shocked the plant, in that it has had very low UV levels up to now.

You changed the environment too late into the plants life. i believe cannabis would need it in veg, so that the plant can build the necessary defense levels in its leaves. Just like an adult that's never had chicken pox, instigating UV at this late stage must be the reason for the effects.

I am not saure about the timing of the nitroduction, though as the plant grows it prolly has adaptation to the UV light...as opposed to getting bombarded all at once.

I believe the idea of strain might be important. we can all atest to friends and others that are "fair" skinned and have no tanning capacity, that even uder controlled conditions are at risk from damage. so it might be a couple of factors that all combined to give this result.

Quote:

Originally Posted by skunkushybrid

Chemical processes are complicated. So complicated in fact, that scientists know very little about how they work. It could be that these strains we are growing are too domesticated to take UV at such a late stage... and we would need to be extrememly careful during the veg' stage...

Did I say wrong track? I don't know... my head is in a million different places at once, at least it feels like it is.

I guess having read all this, and thought about it only a little....as I tried to say above, I think we might be dealing with several different factors that could have compounded to give us the unfortunate result for our friend. I believe that the combination of late introduction (i.e., no opportunity for acllimitization), possibly a genetic strian more sensitive, and possibly even the cone to overly focus the light - could together have given us this outcome.

I go back to my personal circumstances, and this would have been.....oh 1968....I feel asleep under a sunlamp and burned my privates badly....and that in only 20-30 minutes of exposure.

VERY VERY interesting circumstances, and than oyu all so much for your contributions. this is a huge step forward...in advancing our understanding.....

cjsesh00 · #**105** 11-30-2007, 03:20 PM

by far the best discussion I have had in my few weeks on this site. thanks guys, and FYI, I harvested one today convinced it was 7 weeks old and not five and this was almost completely fine I think. The leaves in the buds were turning brown and ugly and I didnt want to wait another hour for it to get worse, I smoked one first as gross as they are and it got me going for sure so they we'll be just fine! i had to trim the buds real tight to get the discolorations out and have some appeal to it and they are fairly resinous, my scissors are almost jammed and I got maybe a half ounce off this plant and I'm making butter right now. boiling it with water to get the chlorophyll and shit out and then i'll pour it though a filter and put it in the freezer to separate the butter and water. its been an eventful day!! happy friday

Harkin · #**106** 11-30-2007, 03:23 PM

Quote:

Originally Posted by skunkushybrid

Chemical processes are complicated. So complicated in fact, that scientists know very little about how they work. It could be that these strains we are growing are too domesticated to take UV at such a late stage... and we would need to be extrememly careful during the veg' stage...

Did I say wrong track? I don't know... my head is in a million different places at once, at least it feels like it is.

Yeah you did... I know what you mean though. I think Tahoe summed it up nicely, it's rather complicated to know exactly what each strain can take. But still the plants must hold onto there ability, maybe not aswell but we know how well it can adapt to extreme circumstances. I truely believe it does need some UVB(to reach it's THC potential) but how much is just a guess..

tahoe58 · #**107** 11-30-2007, 03:27 PM

thanks Harkin...and I think you also said it when you said you get toasted in MX for whatever time....I think smacking the plant sraight into full blown UV will give you the same reaction...I realize I am taking a very simplistic view....but as we have discssed at length, the adaptability of this plant in monumental...and that woulds suggest that they also might adapt to some degree with the UV as well.

kindprincess · #**108** 11-30-2007, 03:42 PM

wow, i missed alot.....

i was going to say that i plan on running uvb for 30 min increments with an hour in between..... lights on for an hour, uvb for half hour, etc...

i also plan on keeping my uvb bulbs four feet away from plants so as not to burn and to utilize the uvb on the largest scale possible (spread).

if i get a day off soon, i'll tell you guys all i've read about it. mv sux, don't waste your time

skunkushybrid · #**109** 12-01-2007, 01:02 AM

Thanks KP... glad to see you in on this. I'm sure that now we have your technical ability helping us along that the answers will be very forthcoming.

skunkushybrid · #**110** 12-01-2007, 01:05 AM

Quote:

Originally Posted by Harkin

Yeah you did... I know what you mean though. I think Tahoe summed it up nicely, it's rather complicated to know exactly what each strain can take. But still the plants must hold onto there ability, maybe not aswell but we know how well it can adapt to extreme circumstances. I truely believe it does need some UVB(to reach it's THC potential) but how much is just a guess..

Yeah... it's just going to take a bit of training. The training starts early... does anyone know the difference in UV levels season to season in somewhere like Australia?

Australia has the highest levels of UV in the world... also TH3BigBad has some experience with UV too, anyone seen him around?