• Home
  • Forums
  • Medical Cannabis Cultivation
  • Growroom Design & Setup
  • L.E.D Grow Lights
  • Growers Utilizing Cob Lights

Growers Utilizing Cob Lights

  • Thread starter Thread starter Dan789
  • Start date Start date Feb 9, 2019
  • Tagged users Tagged users None

Growers Utilizing Cob Lights

Dan789 Feb 9, 2019 86 Replies 16,268 Views
Page 2 of 5 · Replies 21–40 of 87
Prev
  • 1
  • 2
  • 3
  • 4
  • 5
Next
First Prev 2 of 5 Next Last

SinCity

Posts
940
Reactions
2,282
Joined
Feb 28, 2017
Points
243
Feb 11, 2019
#21
JWM2 said:
In my case it’s a combo of the shortened photoperiod and using far red leds to simulate the Emerson effect. I just chopped a 60 day strain at day 51 with amber trics. Could have taken her at day 47.
Click to expand...

like i said, not because it's a fuller spectrum of light
 
Reactions: UncleRomulus, Highkev and JWM2
Quote Reply

JWM2

Supporter
Premium Member
Posts
3,806
Reactions
10,649
Joined
Jul 5, 2018
Points
263
Feb 11, 2019
#22
SinCity said:
like i said, not because it's a fuller spectrum of light
Click to expand...

Yes I’ve never disputed that. In my case I don’t think spectrum has any bearing on the finishing time. Just pointing out the two factors I believe are.
 
Reactions: SinCity, UncleRomulus and Highkev
Quote Reply
H

Highkev

Posts
355
Reactions
547
Joined
Nov 8, 2018
Points
93
Feb 11, 2019
#23
More light intensity par at the canopy equals more photosynthesis more hormones put into growth which in return grows not only bigger but faster I think:bookworm:
 
Reactions: SinCity, JWM2 and MIMedGrower
Quote Reply

MIMedGrower

Posts
17,190
Reactions
53,530
Joined
Feb 17, 2017
Points
438
Feb 11, 2019
#24
Highkev said:
More light intensity par at the canopy equals more photosynthesis more hormones put into growth which in return grows not only bigger but faster I think:bookworm:
Click to expand...


I think the higher levels of blue cause the plants to have less stretch and initiate flowering sooner.

With just hps. Even hortilux with 25% blue there is more stretch and more flower sites developing before initial budding.

My opinion anyway.
 
Reactions: Highkev, SinCity, UncleRomulus and 1 other person
Quote Reply

SinCity

Posts
940
Reactions
2,282
Joined
Feb 28, 2017
Points
243
Feb 11, 2019
#25
JWM2 said:
In my case it’s a combo of the shortened photoperiod and using far red leds to simulate the Emerson effect. I just chopped a 60 day strain at day 51 with amber trics. Could have taken her at day 47.
Click to expand...

Apologies @JWM2 ! I'm realizing my reply probably came off bitchy. :sweating: Sorry! I'm just so into this new info and so i reacted to your post about its spectral aspects and it came off, well, bitchy. :speechless:
 
Reactions: Highkev and JWM2
Quote Reply

JWM2

Supporter
Premium Member
Posts
3,806
Reactions
10,649
Joined
Jul 5, 2018
Points
263
Feb 11, 2019
#26
SinCity said:
Apologies @JWM2 ! I'm realizing my reply probably came off bitchy. :sweating: Sorry! I'm just so into this new info and so i reacted to your post about its spectral aspects and it came off, well, bitchy. :speechless:
Click to expand...

Oh no worries. I figured you didn't mean it that way. I'm a pretty easy going guy. I was just hoping you weren't taking what I was saying as if I was disagreeing with you :-)
 
Reactions: Highkev and SinCity
Quote Reply

UncleRomulus

Posts
1,356
Reactions
4,415
Joined
Aug 9, 2018
Points
263
Feb 11, 2019
#27
MIMedGrower said:
That is a real interesting point. But hps has limited blues and no uv really compared to sunlight or cmh.

So maybe hps increases flowering time. Because i ran 3 rounds of 3 known cuttings to test.

By the way.

Best results for quality and yield were using both hps and cmh overlapped.
Click to expand...
Preach it brother
 
Reactions: SinCity, Highkev, JWM2 and 1 other person
Quote Reply

MIMedGrower

Posts
17,190
Reactions
53,530
Joined
Feb 17, 2017
Points
438
Feb 11, 2019
#28
UncleRomulus said:
Preach it brother
Click to expand...


Lol. I prefer “relaying”.
 
Reactions: Highkev and JWM2
Quote Reply

SinCity

Posts
940
Reactions
2,282
Joined
Feb 28, 2017
Points
243
Feb 11, 2019
#29
JWM2 said:
Oh no worries. I figured you didn't mean it that way. I'm a pretty easy going guy. I was just hoping you weren't taking what I was saying as if I was disagreeing with you :)
Click to expand...

Oh good! Definitely didn't take it as you disagreeing--you were describing. Generously and informatively!
 
Reactions: MIMedGrower, Highkev and JWM2
Quote Reply

SinCity

Posts
940
Reactions
2,282
Joined
Feb 28, 2017
Points
243
Feb 11, 2019
#30
Rootbound said:
I grew under cobs and now I have QB led's, and yes I see flowering time 1 week sooner with most strains.
Click to expand...

so want to hear more from the southpaw...;)
 
Reactions: Rootbound, Highkev and JWM2
Quote Reply
H

Highkev

Posts
355
Reactions
547
Joined
Nov 8, 2018
Points
93
Feb 11, 2019
#31
So my buddy sends a pic of his plant what is it bleached from light?
 
Reactions: MIMedGrower and SinCity
Quote Reply

JWM2

Supporter
Premium Member
Posts
3,806
Reactions
10,649
Joined
Jul 5, 2018
Points
263
Feb 11, 2019
#32
Highkev said:
View attachment 856200 So my buddy sends a pic of his plant what is it bleached from light?
Click to expand...

Most likely. What is he using?
 
Reactions: SinCity
Quote Reply

SinCity

Posts
940
Reactions
2,282
Joined
Feb 28, 2017
Points
243
Feb 11, 2019
#33
MIMedGrower said:
I think the higher levels of blue cause the plants to have less stretch and initiate flowering sooner.

With just hps. Even hortilux with 25% blue there is more stretch and more flower sites developing before initial budding.

My opinion anyway.
Click to expand...

Love this! Did you do much reading or did you pick this up from observation? I'm a bookworm so i'm reading a bunch of research that confirms that the blue end added to the red and far-red does reduce stretch more than just red alone--and it's the combo that signals the plant to flower earlier and for less time. So i'm seeing across the literature that there needs to be a combo of wavelengths. I hadn't heard of the Emerson effect--apparently there is a secondary Emerson effect too. I KNOW NOTHING--I'M JUST READING. I LOVE THIS DISCUSSION. Apparently the far-red has to be supplemented by a shorter wave-length (blue is a shorter wave right?) because the quantum yield of photosynthesis drops at the far-red end more quickly than is optimal.

They're also saying that it's not just metabolic increases from optimal PAR that's doing such great stuff. It's that the metabolic optimization leads to fuller gene expression...ooohhh the possibilities. THANK YOU ALL FOR HAVING PATIENCE WITH ME AS I SORT THROUGH THIS. WRITING IT HELPS ME. ALL RESPONSES WELCOME!
 
Reactions: MIMedGrower, Highkev and JWM2
Quote Reply
H

Highkev

Posts
355
Reactions
547
Joined
Nov 8, 2018
Points
93
Feb 11, 2019
#34
Highkev said:
View attachment 856200 So my buddy sends a pic of his plant what is it bleached from light?
Click to expand...
Sorry wrong post
 
Reactions: SinCity
Quote Reply

SinCity

Posts
940
Reactions
2,282
Joined
Feb 28, 2017
Points
243
Feb 11, 2019
#35
Highkev said:
Sorry wrong post
Click to expand...

i was so curious to hear your guys' diagnosis!
 
Reactions: Highkev
Quote Reply

SinCity

Posts
940
Reactions
2,282
Joined
Feb 28, 2017
Points
243
Feb 11, 2019
#36
UncleRomulus said:
Preach it brother
Click to expand...

@UncleRomulus and @MIMedGrower and anybody else i can ask: since this old dog is learning new tricks, may i ask what you do not like about the LEDs? I always used HPS and metal halide but damn the right LED sounds like a big improvement. I'd very much appreciate your thoughts...
 
Reactions: MIMedGrower and dextr0
Quote Reply
H

Highkev

Posts
355
Reactions
547
Joined
Nov 8, 2018
Points
93
Feb 11, 2019
#37
SinCity said:
i was so curious to hear your guys' diagnosis!
Click to expand...
SinCity said:
i was so curious to hear your guys' diagnosis!
Click to expand...
I’m addicted to this site i feel I can grow anything because of it lol
 
Reactions: SinCity
Quote Reply
H

Highkev

Posts
355
Reactions
547
Joined
Nov 8, 2018
Points
93
Feb 11, 2019
#38
SinCity said:
@UncleRomulus and @MIMedGrower and anybody else i can ask: since this old dog is learning new tricks, may i ask what you do not like about the LEDs? I always used HPS and metal halide but damn the right LED sounds like a big improvement. I'd very much appreciate your thoughts...
Click to expand...
I might be wrong but looking for a nice par value across the entire canopy evenly distributed to get maximum light intensity to the tops of each plant to maximize flower size but apparently there’s even more cause spectrum plays a roll to bid I need to read more journals and learn about that next. There’s a cool YouTube video of a guy growing lettuce under different colored lights and they all respond different. I’m gonna start there. I would post it but it’s not copying for some reason.
 
Reactions: MIMedGrower and SinCity
Quote Reply

SinCity

Posts
940
Reactions
2,282
Joined
Feb 28, 2017
Points
243
Feb 11, 2019
#39
Highkev said:
I’m addicted to this site i feel I can grow anything because of it lol
Click to expand...

I'm so glad i'm not the only one addicted to it! this site is a fucking oasis.

it's an extraordinary place, doing extraordinary things.
 
Reactions: Ina, MIMedGrower and Highkev
Quote Reply

SinCity

Posts
940
Reactions
2,282
Joined
Feb 28, 2017
Points
243
Feb 11, 2019
#40
Highkev said:
I might be wrong but looking for a nice par value across the entire canopy evenly distributed to get maximum light intensity to the tops of each plant to maximize flower size but apparently there’s even more cause spectrum plays a roll to bid I need to read more journals and learn about that next. There’s a cool YouTube video of a guy growing lettuce under different colored lights and they all respond different. I’m gonna start there. I would post it but it’s not copying for some reason.
Click to expand...

apparently, not just different species do best under differing protocols, but different cultivars want different arrangements too. it's not one size fits all. i'm attaching a paper you might find interesting--the experiment is well-designed. many experiments with cannabis are not--alot is by people who either don't know herb well enough or people who don't know research design well enough.
 

Attachments

  • biophysj00666-0002.pdf
    biophysj00666-0002.pdf
    1.3 MB · Views: 150
Reactions: Grimmstone, MIMedGrower, dextr0 and 1 other person
Quote Reply
Page 2 of 5 · Replies 21–40 of 87
Prev
  • 1
  • 2
  • 3
  • 4
  • 5
Next
First Prev 2 of 5 Next Last

Thread info

Replies 86
Views 16,268
Started Feb 9, 2019
Latest post May 14, 2019
Starter Dan789
Forum L.E.D Grow Lights

Latest posts

  • 2026 Outdoor Grows! let's see em!
    • Latest: orggrwr
    • 11 minutes ago
    General Outdoor Growing
  • godfather og fem seed from growers choice seeds
    • Latest: mikeyd4286
    • 25 minutes ago
    Grow Diaries
  • two plants in 2x4 tent in 10 gal pots
    • Latest: mikeyd4286
    • 29 minutes ago
    Grow Diaries
  • Thinking on how I want to do next grow and with what
    • Latest: mikeyd4286
    • 30 minutes ago
    Grow Diaries
  • Cpurola's Outdoor grow in Southeast Michigan 2026
    • Latest: cpurola
    • Today at 8:11 AM
    General Outdoor Growing
  • Home
  • Forums
  • Medical Cannabis Cultivation
  • Growroom Design & Setup
  • L.E.D Grow Lights
  • Growers Utilizing Cob Lights
  • Contact us
  • Terms and rules
  • Privacy policy
  • Help
  • Home
Community platform by XenForo® © 2010-2026 XenForo Ltd.
Menu
Log in

Sign up

  • Home
  • News
  • Classifieds
  • Forums
    • What's new Featured content New posts New Articles New articles New products Latest activity
  • Social
  • Strains
  • Live
  • Learn
  • Brands
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?