I build lights

[NoWaistedSpace]

The bottom graph is better. You're at 20% at 350 roughly. Chlorophyll exchange begins around 300nm. Then at 850 or so, another reaction is happening on the other end of the spectrum. O2 absorption I think?

 

[NoWaistedSpace]

Look at the O3 (ozone)at 250nm

 

[TerpyTyrone]

That's 400-465nm for chlorophyll response.

The 300-365 range is UVB and UVA.

I think you're on to something; the stuff I've seen shows that plants respond better to higher CRI lights.

@Lanestrainley ?

 

[ttystikk]

@Lanestrainley ?

290-315nm is UVB
315-400nm is UVA
400-700nm is visible light
>700nm is infrared

 

[TerpyTyrone]

290-315nm is UVB
315-400nm is UVA
400-700nm is visible light
>700nm is infrared

Him and I were discussing certain exact spectrums that help potency.

 

[Lanestrainley]

@Lanestrainley ?

Yo

 

[Lanestrainley]

Him and I were discussing certain exact spectrums that help potency.

Those were spectrums to manipulate hormones to show sex earlier, and to initiate flowering response earlier.

 

[Lanestrainley]

290-315nm is UVB
315-400nm is UVA
400-700nm is visible light
>700nm is infrared

Sorry peeps, I’ve been super busy lately, I’m sure everyone can guess why…lol.

 

[TerpyTyrone]

Sorry peeps, I’ve been super busy lately, I’m sure everyone can guess why…lol.

Me too...
Adub 7 fruity pheno

 

[NoWaistedSpace]

Uv-B is unachievable in LED?
He says this around halfway mark

He also said UV destroys CBD. Not sure why.

 

[ttystikk]

He also said UV destroys CBD. Not sure why.

I haven't heard that.

 

[Old ST1R]

Hmmm, it seems wrong. There is UV in natural light which I’m sure doesn’t harm the CBD in outdoor CBD plants.

 

[ttystikk]

Hmmm, it seems wrong. There is UV in natural light which I’m sure doesn’t harm the CBD in outdoor CBD plants.

Agreed. If this were true there would be no point in growing high CBD strains here in Colorado and I know that's not the case.

 

[NoWaistedSpace]

I haven't heard that.

 

[NoWaistedSpace]

Hmmm, it seems wrong. There is UV in natural light which I’m sure doesn’t harm the CBD in outdoor CBD plants.

I thought we might wanna have a discussion on it to understand why he said it.
Get to the "truth" of the matter.
Maybe it turns it into CBN?
Is he talking about cured flower?

 

[m4s73r]

Shane has a whole UV series he did, like 3 or 4 episodes i think. I am considering a couple of uvb lights once im out the tents.

 

[Old ST1R]

I thought we might wanna have a discussion on it to understand why he said it.
Get to the "truth" of the matter.
Maybe it turns it into CBN?
Is he talking about cured flower?

Cured flower I can see. UV is bad for your weed after it’s dead. Thus “store in a cool, dark, dry space”.

 

[NoWaistedSpace]

Cured flower I can see. UV is bad for your weed after it’s dead.

What I understood was it's a give off, increase thc decreases cbd. Then he said it wasn't good not to have any cbd in the flower. He might have changed his mind by now. The vids have been a couple years back.
But any light degrades your weed during the curing process.

 

[idolized]

Bruce Bugbee just did a podcast with Mr Grow It, and he stated that UV is not connected to increased Terpene expression. And that this misconception is tied to a single paper, and that even this paper said that the results were equivocal.

 

[Zaphod420]

Use it for a few weeks starting around week 3 or 4 of bloom. If you use it at the end, you'll get more weight but you also get nasty, chemical tasting weed. That's where the bad reputation for hydro got started.

So your peak bloom recipe is working out really well in one of my flower tents ttystikk, their ph drift seems to be going 6.0 - 6.3 every couple of days like clockwork so they are definitely happily munching away and they are looking very happy.

Q - So do you normally go back from Peak Bloom(after 3 weeks) to just Bloom or do you finish your girls a different way?