Talk to me about UVA and B, Reds and who is Emmerson anyway?

[oldfreak]

So I currently run (I’m coming from 1k HPS) PLC photobooth strips so I do have some reds, but what about IR, UVA and UVB, am I missing something?

When I compare my indoor GG4 and OGs with my outdoor from the same cuttings it sure seems like I could do better indoor.

[ReikoX]

A quick search on Wikipedia will get you started on understanding the Emerson Effect. In simple terms, you can increase photosynthesis by exposing the plants to both deep red and far red.

Emerson effect

[anon32470837]

Im curious to know if the Emmerson Effect is a big deal as far as increasing yields or just an interesting scientific detail that stoners have blown out of proportion?

In other words, is it really worth it to invest in some special Near/Far Red LED lights, and will you actually be able to detect an increase in yields?

[anon32470837]

I asked @Baudelaire of SolStrips about this and his comments were that the Emmerson effect does NOT do much for increasing total yield. However, it does improve quality a good bit, plus it speeds up flowering - which amounts to a slight increase in yield over time if you can squeeze in more grows in a year. Im not clear on how much it speeds up flowering, but it didnt sound like anything dramatic.

SolStrip LED lighting: Product info and announcements

A little peek at our newest SolStrip, the X3-400-5700/3000R: [image] Dual-band, dual channel (5700K and 3000K) Samsung 301B LEDs, with with four Osram 660nm deep red and two 730 far red diodes in the 3000K channel. I've seen the Emerson effect at work in my grow rooms that use the SolStrip deep red/deep blue strips. The addition of the far red in the new X3s will only enhance the effects further - mainly accelerated flowering response, and a quicker, more certain finish, with no noticea…

@Baudelaire

I’ve seen the Emerson effect at work in my grow rooms that use the SolStrip deep red/deep blue strips. The addition of the far red in the new X3s will only enhance the effects further - mainly accelerated flowering response, and a quicker, more certain finish, with no noticeable loss of weight, and enhanced flower structure and size, as well as better terpene and cannabinoid production.

From experience and my survey of the research, I’m not convinced that far red “flower initiators” alone do much on their own. But far red with deep red in the regular bloom cycle spectrum mimics the mid-late season solar spectrum. That’s our guiding philosophy at Photon Solutions, recreating the solar spectrum.

Coming to Solstrip.com soon.

and

SolStrip LED lighting: Product info and announcements

I haven't seen a notable difference in production weight. But a lot of the variance in finishing is reduced. If you've ever taken a week or two to harvest a plant because the tops finished ahead of the bottoms, or the apicals ambered-up way before the basal flowers, you know what a pain it is. The additional deep and far red seems to really tighten that up. Sativa-dom varieties flip into flower much faster, and finish more uniformly in particular.

@Baudelaire

I haven’t seen a notable difference in production weight. But a lot of the variance in finishing is reduced. If you’ve ever taken a week or two to harvest a plant because the tops finished ahead of the bottoms, or the apicals ambered-up way before the basal flowers, you know what a pain it is. The additional deep and far red seems to really tighten that up. Sativa-dom varieties flip into flower much faster, and finish more uniformly in particular.