High THCV strains and breeding them

Moe.Red · Jan 16, 2021

Setpoints, lights, plant rotation
The hardware controlling the environment and plants moving in + the seedlings coming next.

I'm waiting for my water to catch up and I will move the veg'ed plants over. Probably tomorrow AM at this point.

Milson · Jan 16, 2021

TripsRabbit said:
Most of the cheap quantum board grow lights like viparspectra have uv diodes.

Those are uva. Uvb is the important one for thc.

Moe.Red · Jan 16, 2021

Milson said:
Those are uva. Uvb is the important one for thc.

I have (2) 4 foot florescent fixtures that run 75% UVB and 25% UVA. I'm planning out a way to test 1/2 of 2 plants just for giggles.

Milson · Jan 16, 2021

Moe.Red said:
I have (2) 4 foot florescent fixtures that run 75% UVB and 25% UVA. I'm planning out a way to test 1/2 of 2 plants just for giggles.

Cool!

I run a 26w lizard lamp in a 3x3 tent...rotate the plants to get exposure. Unscientifically, the plants react pretty significantly to it. The smell after a session is distinctive imo.

I suspect running that and far red (which i am suspicious affects branching behavior in cannabis) significantly improves my pot. I am curious to test my next batch....need to get to the store to buy a more precise scale so i can prepare my samples properly and see what tlc says.

Skeptik · Jan 16, 2021

Moe.Red said:
I have (2) 4 foot florescent fixtures that run 75% UVB and 25% UVA. I'm planning out a way to test 1/2 of 2 plants just for giggles.

Careful. Those Pure UVB tubes can do some damage to you and stress to your plant. I ran my Reptisuns, which are much lower in UVB, 10" from my canopy for 2 x 2 hr segments per light period and both plants threw fertile nanners. You can easily end up with a fully seeded grow room. You're going to want to run those tubes much higher, like 30 inches, for less time per segment. Strains stress under different conditions, though, so YMMV.

TripsRabbit · Jan 16, 2021

Skeptik said:
Careful. Those Pure UVB tubes can do some damage to you and stress to your plant. I ran my Reptisuns, which are much lower in UVB, 10" from my canopy for 2 x 2 hr segments per light period and both plants threw fertile nanners. You can easily end up with a fully seeded grow room. You're going to want to run those tubes much higher, like 30 inches, for less time per segment. Strains stress under different conditions, though, so YMMV.

You are supposed to turn on the far red for the last 20 minutes to help replicate a sunset to help induce plant sleep. I've never heard of using uv for more than the last hour.

Milson · Jan 16, 2021

TripsRabbit said:
You are supposed to turn on the far red for the last 20 minutes to help replicate a sunset to help induce plant sleep. I've never heard of using uv for more than the last hour.

I run far red all the time since it's present outside and plants use it for stuff, including shade detection. It does go up as a proportion of total light at sunset though.

Moe.Red · Jan 16, 2021

Man we are all over the place. Everything I look at is a variable.

Lets do this grow with just the new HPS bulbs with no glass under them. That provides some UV.

Later in the grow we can determine if UV should be added and specifics.

I'm about to harvest the 4 other plants in the tent with the 2 Jack the Rippers. Then we can start playing games with supposed high THCV genetics and see if we can squeeze any more out of them. Could maybe use UV over here. I'm just about due for another TLC test over there too.

Moe.Red · Jan 16, 2021

Skeptik said:
Careful. Those Pure UVB tubes can do some damage to you and stress to your plant. I ran my Reptisuns, which are much lower in UVB, 10" from my canopy for 2 x 2 hr segments per light period and both plants threw fertile nanners. You can easily end up with a fully seeded grow room. You're going to want to run those tubes much higher, like 30 inches, for less time per segment. Strains stress under different conditions, though, so YMMV.

I've run them before. Just short bursts. Mixed results. No nanners.

Milson said:
I run far red all the time since it's present outside and plants use it for stuff, including shade detection. It does go up as a proportion of total light at sunset though.

I read it has a direct control over hormones in the plant. I suppose anything is possible, I could throw far red on one of the Jacks in flower and uv on the other?

Moe.Red · Jan 16, 2021

I'm also going to harvest a few Jack buds from each plant and begin testing with those after a manicure, air dry, and cure. Who knows, maybe there is something special to the smoke.

Skeptik · Jan 16, 2021

TripsRabbit said:
You are supposed to turn on the far red for the last 20 minutes to help replicate a sunset to help induce plant sleep. I've never heard of using uv for more than the last horur.

Something around 730nm for 5-10 min after lights out transitions the plant to dark cycle rather than the normal 2 hour transition. A grower can extend the light period to 14 hrs and the plant will still flower, but with an extra ~2 hrs of sunlight, allegedly (haven't tried this yet) taking a week off flowering time.

Moe.Red · Jan 16, 2021

Jack the Ripper Feminized Marijuana Seeds

We know a name like Jack the Ripper doesn't make a great first impression. However, this sativa-dominant strain provides a happy and relaxing high with THC levels around 20%. It can help combat pain, depression, and anxiety.

www.pacificseedbank.com

Pacific Seed Bank

these are the seeds I am running

Milson · Jan 16, 2021

Skeptik said:
Something around 730nm for 5-10 min after lights out transitions the plant to dark cycle rather than the normal 2 hour transition. A grower can extend the light period to 14 hrs and the plant will still flower, but with an extra ~2 hrs of sunlight, allegedly (haven't tried this yet) taking a week off flowering time.

Probably something to do with phytochrome?

Moe.Red · Jan 16, 2021

edit sorry wrong link

Tunable Far Red Lighting — GrowFlux

www.growflux.com

check that out

Milson · Jan 16, 2021

Moe.Red said:
edit sorry wrong link

Tunable Far Red Lighting — GrowFlux

www.growflux.com

check that out

Yeah. The third one is very noticable. I signed up for their guide. Give me that sweet content....

Moe.Red · Jan 16, 2021

Skeptik said:
Something around 730nm for 5-10 min after lights out transitions the plant to dark cycle rather than the normal 2 hour transition. A grower can extend the light period to 14 hrs and the plant will still flower, but with an extra ~2 hrs of sunlight, allegedly (haven't tried this yet) taking a week off flowering time.

Listening to that video I need 8 pucks to initiate the emerson effect. I think a long bar with more leds would be better coverage

Milson · Jan 16, 2021

I use 5 of these bars in a 3x3. https://www.ebay.com/itm/LED-Far-Re...ficiency-Initiator-Single-Light-/133268554971

Moe.Red · Jan 16, 2021

I got a tracking number from real seed my dudes!

Moe.Red · Jan 16, 2021

OK, so I have 2 of these coming:

730nm FGI Far Red LED Grow Light, 4’ long. Commercial Grade. - Forever Green Indoors

Premium quality Far Red LED Grow Light designed by Forever Green Indoors. 730nm dedicated diodes. 6’ power cord included. Waterproof aluminum case.

forevergreenindoors.com

They sell this kind of stuff and Apogee instruments. Seem very credible.

This will allow side by side testing of both UV and Far Red.

Moe.Red · Jan 16, 2021

So I'm trying to figure out the UV side of things:

From our own research grows, Black Dog LED has demonstrated that UVA light alone can increase THC and CBD production in Cannabis plants. The combination of UVA and UVB light (from a standard "reptile bulb" fluorescent light) also increases THC and CBD production, but the inclusion of UVB in the light has noticeable detrimental effects on plant growth compared to only UVA.

This is why we've engineered the Black Dog LED Phyto-Genesis Spectrum™ to only include UVA light, without any UVB wavelengths. The UVA still increases production of secondary metabolites such as THC, CBD, terpenes and flavonoids but without the negative effects of UVB light.

From here

I'm thinking that this would be a good option.

FGI 360-400NM UV-A Supplemental LED Grow Light – Forever Green Indoors

360-400NM UV-A Extended Spectrum LED Grow Light. From an industry leader in LED grow light design.

forevergreenindoors.com

to add to the LED tent that has the 2 Jacks in it.

High THCV strains and breeding them

High THCV strains and breeding them

Moe.Red

Milson

Milsonian

Moe.Red

Milson

Milsonian

Skeptik

TripsRabbit

Milson

Milsonian

Moe.Red

Moe.Red

Moe.Red

Skeptik

Moe.Red

Jack the Ripper Feminized Marijuana Seeds

Milson

Milsonian

Moe.Red

Tunable Far Red Lighting — GrowFlux

Milson

Milsonian

Tunable Far Red Lighting — GrowFlux

Moe.Red

Milson

Milsonian

Moe.Red

Moe.Red

730nm FGI Far Red LED Grow Light, 4’ long. Commercial Grade. - Forever Green Indoors

Moe.Red

FGI 360-400NM UV-A Supplemental LED Grow Light – Forever Green Indoors

High THCV strains and breeding them

High THCV strains and breeding them

Moe.Red

Milson

Milsonian

Moe.Red

Milson

Milsonian

Skeptik

TripsRabbit

Milson

Milsonian

Moe.Red

Moe.Red

Moe.Red

Skeptik

Moe.Red

Jack the Ripper Feminized Marijuana Seeds

Milson

Milsonian

Moe.Red

Tunable Far Red Lighting — GrowFlux

Milson

Milsonian

Tunable Far Red Lighting — GrowFlux

Moe.Red

Milson

Milsonian

Moe.Red

Moe.Red

730nm FGI Far Red LED Grow Light, 4’ long. Commercial Grade. - Forever Green Indoors

Moe.Red

FGI 360-400NM UV-A Supplemental LED Grow Light – Forever Green Indoors

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