The Terpene Amplifier: Harnessing UV Light for Cannabis Quality 

UV and IR certainly make a difference in phenotypical expression. I have been using both on and off for roughly 5 years now. Also Guru is incorrect. IR makes MORE biomass via leaf surface area. It's not desirable biomass but it still produces more biomass. Your only supposed to use them the last 2-3 weeks of flowering during the last 2 hours of the light cycle before lights off, IF your trying to mimic nature. I have used them both for the whole grow, UV the whole grow, IR the whole grow, the last month, the last 2 weeks and so on. Using both the whole flowering period makes your plants express more like a tropical environment. Makes your buds more greasy too. Not the best idea for hash washers.

Been using Migro UVA/B fixture for 2/3 runs ..... a definite improvement in taste expression ... love it. only an 18w unit in my tent ..... highly recommended! last 3/4 weeks of flowering 2 hours 'mid' light cycle.

Idk how most uv works but the light manufacture recommends that i switch their uv diodes on for something like 4 *minutes* a day in flower, the problem is sometimes i forget to turn it off for a couple days, and you can see it takes a few days after that for the plants to bounce back and grow quickly again, however they come back with more stink and grease, I put my plants back in veg a few weeks before harvest so that helps my plants finish bulking while under the stress of uv, they are still nice and green come harvest as the lowers of the buds are already revegging. I think people worrry that switching the lights to veg at the end of flower would make the plants stop producing cannabinoids, or change their terpene profile, but i notice it only makes them more stinky, potent and massiv. Phenos that didnt smell before start smelling, especially after the reveg when you run the plant a second time, like it has reached full genetic maturity. Be careful though, some strains reveg really quickly, like within a few days, in these cases this stratedgy wont work well or will need much better timing so I wouldnt recommend this for landrace plants on the first run but it will usually work with most of the popular polyhybrids about at the moment. Credit goes to Rasta Jeff at "grow from your heart podcast" for teaching this method.

I use the same pot holders with drains on my grow which is elevated and I have a drain system underneath and used robust silicone hose that allows for movement of the pots still but with a drain. they are AWESOME. I also found out that adding truck bed liner to them is smart - the salts in feed will eventually compromise the paint and cause rusting. The pumice or some soil gets between the pot and plant and just the pot shrinking and swelling from wetting and drying will wear out the paint. Truck Bed liner just makes it more awesome. I have a new AC Infinity 4x8 raised up 2 feet off the floor. I am using the brand new 8-Port controller that arrived 2 days ago. My 15L AC Infinity UIS humidifier is pre-ordered and already shipped. Got Acapulco Gold, Green Crack, Dee-Lite and OG Kush going. Photonek and Phantom lights with the AC Infinity 4x16 augmented lights and 4x11 UV augmented lights.

Merry Christmas DGC, keep it lit for the holidays yall

Much love Scotty, Grambo, and Dude(love your sweater). Thank you for the shout out.

I have grown cherry pie under a mars hydro light and outdoors from the same mother plant and the characteristic terpenes and potency was completely different! Indoor has a nice cherry flavor but out door was super gas with a pinch of cherry.. much stronger too 😅 both tested over 30% tho😊

This year grow was the best for my terpenes the 3 strains came out 20% THC with a terpenes 4% and 5% and Definitely happy with the test results that I received back

Been running 24" T5-HO Agromax UV-A 75% / UV-B 25% bulbs for years. Burned my first crop. Now I run it in 10 minute increments 3-4 times mid-day during flower. Way more cost effective than LEDs. Still running the same bulbs 3 years later.

I got some hydrolocks no longer pump water through me but I like to place them on top of my pots and slows the dehydration of water tremendously adds another day between watering Scotty

I've been running the uv and far red infrared I believe there the same the light figures from Mars hydro they clip right on the Existing grow light in between the led bars. I'm only on my 4th indoor grow I've been using it since the second grow I also gre outdoors over the summer for the first time and I have to say compared to the first grow my last 3 harvests the plants were just as if not more than my outdoor yeld also the thc content has to be hire because compared to my first indoor grow with out the uv and ir I definitely noticed the difference in the high and amount of terps. Also like I said when compared to the outdoor they were definitely on pint if not more like I said. In my opinion I won't be ever growing without them.

The grow room is looking great

Here's the picture for the 24 hr light debate. Light on vascular system is in uptake mode full on can't reverse flow.. 24 hr the leafs build and build plant energy and they will need more storage. So they need to absorb prior building blocks to do so or they don't have a choice but will gladly trade overstocks for smaller more powerful energy cells. Microorganism centipede.. Night cycle that building finally can stop and the massive need for space to store the energy can bleed out to the roots as the vascular system isn't restricting the flow. And now the leafs absorb any shape that is the right size. Once they get clogged it reverses vascular flow to take care of the business. These are my own words and the plant might have made me do it to confuse us all idk.

Not a shameless plug and not affiliated with the company I am about to mention in NO WAY, SHAPE or FORM! SolaCure has a UVA/B T8 that is AMAZING! Takes your end results to the next level fo sho. JS! My hidden gem for a few years now! 💯💪🏼💪🏼🔥🔥🔥✌🏼

I had to travel several times this last year for 10 days at a time. What I found that worked best was a blended live top feeding dry food blended into the soil then just feed then on a schedule with clean water. I had amazing results. The one thing that is critical is make sure all controllers are battery backed up. Power dips and brownouts in Texas would kill my devices so I had to use a UPS.

Im using the 4ft Fluorescent AgroMax t5 pure uv %25a/75%b supplemental lights, and I've noticed a difference.

The heater at night is worth it in my opinion. Less chance for PM for temps to not fluxuate i believe. Sweet set up Dude.

I supervise a 25 acre floriculture farm producing around 4 million plants a year. Handwatering hanging baskets is still my favorite thing to do :)

A Churchwarden pipe for the Dude.. Merry Christmas guy's...

Love that LOTR Gandalf style pipe!

Dude best pipe and Christmas sweater ever. Send a link so I can check one out🤟🏻😂

Listen guys here's the new grow room for myself as well I have a 5x5 infinity set up and I have 4x8 and 3x4 in my garage and I have a upstairs master bedroom with a walk in closet that leads out over hanging above our kitchen and it's a shell that I'm going to build a veg room that's hidden from everyone so this is my new project for this year

Loved this episode! Talked about UV, auto watering with living soil, cloning! What a great episode keep up the good work guys

Great show guys! I enjoyed My evening watching 👍👍👍👍👍

One of my best plants ever I grew in a 2x4 in my kitchen. Make sure to open a window when you cook if you don’t have a vented oven hood though

I believe that because uv is closer to blue than red, so when you add the uv it throws off the balance of red to blue ( k) color temp.. So yes more blue prevents cell elongation. This is how i understand this

migro homepage: Set timer to switch the UV light on for about 2 hours in the middle of each ‘lights on’ cycle. Hang 45cm to 60cm above the grow canopy.Use only for the last 3 weeks of flowering In addition, according to studies, there should be even better results if you activate it every other day.

CMH for the win 🏆🌟🔥 closest spectrum to sunlight ☀️

Chuck Norris for sure

Thanks for your amazing Show. I've found it by chance when i was looking for strains and breeders on YT ( the solfire Interview). Thanks to you i,m now mad about some ( many,many🤤)US strains and my Hobby will get much more expensive If we have legalisation this year😁 Greetings from germany

I have been using the migro uvb for 3yrs and it deffo makes it more sticky

Mars hydro has an excellent 3 light combo ad on for uva deep red and more normal red spectrum which increases your size and terpene production.

I grew same cuts with and without uv. It completely changed the terp profile, for the better!

Horizonal living soil system..can heavy water and good for a week as there's a sand aquafillter in the bottom of the pots

I’ve never charged my biochar and it’s been 20% of my potting mix for years.

Merry Christmas from Freedom Mountain Homestead, Elk Creek Missouri

Merry Christmas fellas ! DGS is the best . God bless , and a peace be with y'all !

Happy holidays.

Great show. Hitting on some very pertinent topics. Theese are many of the pro nuences.

54:45 nice caddyshack reference Scotty

Short lead me here. Good job! And just my Thang UV!

I’ve got a set of uva bars on my mars fce6500, no noticeable difference in frostiness, uvb for sure does something ain’t had nothing match what I grew under cmh, gonna try some reptisun bulbs see how that works.

Wheels are clutch!

Hand watering for the win!!!!!!!!

Hand watering is such a pain in the ass when you like variety. I’m finally gonna be automated once I get these seedlings established, no more sacrificing sleep to stay up chasing a bunch of 1 gallon pots with water come mid flower. 😂 Swtg it’s a good thing I’m a disabled vet with no responsibilities or id have needed to figure out auto watering a long time ago.

Don't forget to like and subscribe guys

Merry Christmas , love the show ! God bless !

Yep years ago I got a batch if GG4 from a shop and out of habit looked at the numbers and the guy knew I was going to pass because it said 16% THC but 6+% terps and I was going to pass but guy stopped me and forced some terp talk on me best weed I've ever smoked opened my eyes to terps baby.

I've got IR leds in the security cams in my tents and no ill-effects thus far, and that's all night long through flower. SpiderFamer's got UV on Christmas deal so one got tossed in the cart. Not much of a baseline to go by so far, but we'll see

Hey bro, he wasnt saying uv brings up terps and thc by 30% he meant it brings up terps by 30%. So if you have 3% terps and add uv lights it will bring it up 30% which is like 3.8%

Dude showing me some leg made my holidays. Make sure to cover those nips in the grow when youre using that UV light.

The studies I've read show an increase of SOME terpines with the addition of UV light, but it always seems to be a trade off with decreased levels of other terpines.

I got some UVA & UVB. I see great results in veg with the UVA and ive definitely noticed stronger terps when using rhe UVB. This run ill do a side by side comparison. My 5x5 has been getting UVA from the beginning and the plants In the 4x8 for it for the first month. But I want to do UVB for 2 hrs per light cycle for the 4x8 and get some solid test results! Running 5 tents right now and Yeah it can be a lot!

I’m a fan of all them FANS doodle!

i just got roots in 6 days with my turbo klone. not huge roots, i wouldn’t transplant them to coco yet, but most def roots. 9 days in all 40 clones have 4-9 in roots ant a lot of roots on each clone

Ac infinity has a 4 bar uv light system for a pretty reasonable price. Not sponsored but i want one from Santa

I just added some uv b

my growers choice light has uv bars can buy 120$us

I was growing indoor .and my wife and daughter complain about smell . so i move my stuff out side . and the terps change on the flower out side it was more sweet out side for some reason . all my friends agree the out door product tasted more sweet just bag appeal was not as good as indoor . I grow in Hawaii

I run the infrared for ten minutes to fifteen minutes before lights on in the morning and ten to fifteen minutes Every morning before lights on all through cflower and veg

I hate hand watering. I have switched to wicking systems. I only have 2-5 max growing so I can still give each plant the time and care it needs

Great information I’m just getting started

18 v 24 hours? What's the DLI? I think you should let them sleep. You can give the same photons per day with 18 as 24. You'll get to a point where you're burning them before that's not true.

My clones get 24 hour light

I bought the first 650rs that came out and I bought the UVA bars as soon as they were available I did notice quite a big difference on a few strains just for knowledge though I have upgraded to optic LED bar style lights which are way better I get way better yields and they also offer UV bars which I will be picking up here very soon

Tekno Viking just wants to dance, Dark Santa ain't got no time for that, Chuck by default. As it should be.

Dude, how do we really know the sun is the best light? Just because it is what plants evovled under, doesnt automatically make it better.

Grambo!!!😂 Overgrow😂🤣

Thank god Ricky Bobby showed up and elevated the show

Dam nice grow room dude.only think is the heater.metal?I've seen melted ones when it's fan burned out..I have a portable base board style no fan .convection only ...solid state as you like to say

Nice sweater and growroom Brett. Is that all Orangegasm🤔

Yup, uv basically a 30% increase of total cannabinoids over all i thing guys, keep rocking it 👍 😊

Looks like my buddy Marvin from the Philippines

DGC always bringing the knowledge 🤘

Has anyone else notice that addition of uv light adds color to plants?

Scotty says he would choose uvb over uva? Thing is even like ppfd and spectrum the pheno and selection of strain using higher ppfd or uv def is pheno selected and many this add on wouldn’t be helpful.

+1 on the advice guys.

Tons of knowledge dropped

I heard Alex hardy was saying blue lights to keep canopy height down a bit more I’m going to give it a try some time probably with the next run

Have none of the hosts read about LED lights??? They do produce IR light... just look at the chart that comes with your light that shows how much wavelength you get. It would be nice if these guys learned about stuff before talking.

I'm ready to break out my old 600hps and put my HLG 350R diablos on each side! UV and IR 😂 Excellent show DGC!!!

I have 2 UV lights. One is mars hydro UR45 & hlg 30w uva. I don't use them much but I do some.

Love dude's new pipe👍

🎉DGC!

Oyster mushrooms will break down plastics and you can eat the mushrooms after :)

Exacto knife.. especially for fimmimg

4 tents is perfect for 12 plants perpetual harvests, 2 - 5x5 and 2 - 3x3 wish we had room for a 10x10 lol

Chuck

Wear eye protection and cover your skin under the lights .

Thx for the content guys...cheers, thx for sharing.,,☮

I've been growing for 29 years and my clones will always pop roots in about 5 to 7 days.Yet will any lemon cuts I have waited up to 21 days for roots before they grew out.

Uvb would be a better choice for thc...not sure about uva

Ricky Bobby!

There is IR in led

Migrow guy says white led have enough uv and red and green and blue thus not needing extra uv or ir fixtures. Just wondering

Spiderfarmer had a sale on their uva bars... $40 all in ... for that much why not

Wow! Look at Ricky BOBBY!!!! We need a raffle prize to meet him! Great looking dog - HAHA! :D

You only wanna run your uva for 5 min per hr during veg and 10 min per hr during flower of you can sunburn your plants.

Damn I have 4 tents in a 9x12 room... Want to add UV now

you don’t use uvc for growing 😂, come on how many times does hlg and google gotta tell ya uva and ir are in led’s but if you want uvb it’s a fluorescent . hlg recommends to use their uva once you see buds forming aka 2nd weekish of bloom running it full bloom on/off vs uvb is last 2-3 weeks before Chop at .5hr-2hrs