Pic of a cool OG Kush seedling
- Thread starter BobCajun
- Start date
Dr. Who
Well-Known Member
Yeah, those are in 3's - doing a synthetic line test. The way I water/feed, they finish strong in 3's.
I had to wide angle from close and shot on a 18" step stool.....Back to other strains behind me.
They're 6' + plants.
Dr. Who
Well-Known Member
Sure. That room is all 1K HPS - 8 fixtures. The bulbs are greenhouse commercial - Plantmax. They sit in Jupiter 6 hoods. Not made any more but they were the most effective reflective, vent covered hood built (20+% increase over regular vented hoods). I got just about the last 18 the designer had after going out of business (lack of real advertising = I knew about them from a friend in OR)
Below them are suspended a 400w Mercury Vapor bulb. This supplies strong UVB, and the blue end of the spectrum lacking in HPS.
So 1.4Kw per light area.They are spaced at six ft center to center = good overlap for the taller then in home space. The actual building is specifically built to be a grow - very heavily insulated and the rooms are completely managed for temp and RH control. Central heat/AC with slight supporting portables and a big German deheuy....My dial ins for the environment, only vary by 3-4 deg F on 100 deg days and 5% RH.
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BobCajun
Well-Known Member
I got it mixed up with Sinmint Cookies. That's the one with small buds and low yields. I got one video mixed up with another.
BobCajun
Well-Known Member
Did you find that the UV light made a noticeable difference or have any test results to compare? The subject hasn't actually been settled yet. Some say it works, others say it does nothing, one said it actually reduced the potency. Maybe it has to be on for only short periods at a time, like the 15 minutes per hour thing I've read about.
Logic would suggest that since UV degrades THC it could actually have a negative effect. I used reptile CFLs and I think it made it weaker so I stopped. I had them on full time though and not for the whole flowering phase, just the last few days. Maybe you have to start low and gradually increase so it has time to adapt.
Dr. Who
Well-Known Member
I did testing years ago..After a lot of research, skipped the repti bulbs - only effective on a sliding value out to 18". Settled on the Merc vapors as they have better action and penetration. In my post's, I gave a pretty clear picture that (including test reports) that I was getting increase's as large as almost 4 whole points of THC.
Examples:
17.8% increased to 22.2%
23.6 to 26.8
and so on.
It varied by strain and exposure......So yeah, it works. It also adds/increases a rather psychedelic element to the buzz. Very heady. Like outdoor but stronger (sometimes).
Thc is produced at night. Light during the day, does degrade the Thc, to a point. This is then reversed again at night. Part of the process of the light saturation point cycle the plant goes through daily. The use of UVB in layman's term's, Is increasing that night time production of Thc. So that the plant is in effect, attempting to increase the protection from the UVB increase...
I take this from research going on in Israel. Until the DEA removes it from being sched 1. Your not going to find much research going on here.....
cindysid
Well-Known Member
So, does that mean that leaving a plant in darkness for awhile before harvest might increase potency? I've wondered about that.
Johnei
Well-Known Member
I do this, for last 3days, low humidity control is imperitave though sop no mold comes, and how you odo that final watering so doesn't increase RH, exhaust fan all the way up.. hardens buds, brings out final push of colors and trichs. fo'sure
(2-3days I should say, not a locked in formula.)
(edit-I have even started this process by shocking them with cold water watering before throwing them in dark, to lock P and bring more color. not everyone's cup of tea.
)
(2-3days I should say, not a locked in formula.)
(edit-I have even started this process by shocking them with cold water watering before throwing them in dark, to lock P and bring more color. not everyone's cup of tea.
)
cindysid
Well-Known Member
I've done the 3 days of darkness a few times, not sure if I could tell the difference. I'm a lightweight anyway, so it is always potent to me! The cold water sounds interesting.I do this, for last 3days, low humidity control is imperitave though sop no mold comes, and how you odo that final watering so doesn't increase RH, exhaust fan all the way up.. hardens buds, brings out final push of colors and trichs. fo'sure
(2-3days I should say, not a locked in formula.)
(edit-I have even started this process by shocking them with cold water watering before throwing them in dark, to lock P and bring more color. not everyone's cup of tea.
Johnei
Well-Known Member
That's exactly the type of golden ooey gooey OG I love! That's the FIRE! I can see. Beautiful
!
MichiganMedGrower
Well-Known Member
Wow. I do not know where to start with your mis-information.
Barely any UV-B gets through the safety glass (which has a safety strip to extinguish the bulbs if the outer glass breaks) of a standard mercury vapor lamp.
Only the reptile specific bulbs offer any.
The 4% thc increase that has been reported in videos and verified is from John Berfelo a few years ago when he tested cmh vs. hps vs. led. I have posted it many times. He did not know it was the uv and better spectrum of the 315 cmh at the time.
And ed Rosenthal discovered uv-b raises thc in cannabis in the 70's.
Cannabanoids are not only produced at night. But it is true they can be degraded by intense light.
And none of us are going to reach the light saturation point of cannabis. It is a high sunlight plant and we can't get close even in 24 hrs. It's just harder to meet the plants needs in high light conditions.
MichiganMedGrower
Well-Known Member
And here is more stuff that needs correcting. Lol. What the hell doc?
Plantmax bulbs are "greenhouse commercial"? That's not even a term. And they are just cheap Chinese bulbs likely rebranded across many lines.
Jupiter 6 hoods are not special. They had a supposedly better pair of inserts. It was just marketing. They are gone now. for lack of sales and customer service.
You can pay too much for used ones on eBay if you are so sold. Everyone with them sitting in their attic are jumping on the bandwagon it seems.
The 20% increased reflectivity was just advertising. Increased from what?
http://greenbookpages.com/reviews/hydroponics/hydro-premium-6-jupiter-grow-light-reflector/
And the light bulb below the glass would ruin the reflectors reflectivity to the canopy anyway.
I feel like I am still on Riddle me dot com. Lol.
And you keep showing the same bud pics. But they were chem dog supposedly last time you posted them.
And I don't even want to approach the rediculous yields you are claiming in 3 gallon pots but you just keep claiming with no real time proof ever.
Show a pic. A full garden pic with the reflectors as you say and show and just hold up a piece of paper with the date on it showing. A pic that shows all you claim. A new pic I have not seen. A pic of today.
And I will apologize to you for the insults. But I knew all along didn't I?
MichiganMedGrower
Well-Known Member
Real gg4 yields medium buds. Real sour diesel yields big buds for comparison.
MichiganMedGrower
Well-Known Member
If you don't overfeed or have build up in the soil no real need for darkness. What the darkness does is stop the plant from uptaking carbs from its root zone before harvest to lessen harshness and bitterness.
It takes one cycle (24 hrs) to accomplish this but ed Rosenthal printed years and years ago that 48 hours is enough to clear the plant of all excess carbohydrates.
Since RIU always suggests more regardless we are now up to 3 days.
Because more is always better.
chemphlegm
Well-Known Member
rosenthal seemed more knowledgeable than cervantes to me. I know some follow one over the other and I used cervantes as a room build guide/plant/schedule management primer myself, but if I had seen just one of his vids, heard him speak even, before i bought that grow bible I would have passed over him without thought. Its glaringly obvious he had little to do with the bible contents.
MichiganMedGrower
Well-Known Member
Cervantes is a reporter. A journalist. Rosenthal is a scientist and a breeder.
But Jorje Cervantes has toured all the great breeders and growers rooms for years. He knows plenty. And he too posts new information that corrects old myth.
I liked both books. But ed had the data.
CannaBruh
Well-Known Member
Which is the real sour?
MichiganMedGrower
Well-Known Member
I believe it is the old East Coast Sour Diesel. Like Motarebel uses in his crosses all these years.
Comes out heavy all the time in my hybrids.
I have some old Gryphon seeds that were stubborn to germinate but they are original G-13 x ECSD.
It is likely my favorite plant hat I can not seem to grow. Lol.