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LED and BUD QUALITY

mean mr.mustard

I Pass Satellites
Veteran
Much respect if you ultimately took 50 females to harvest all by yourself! That had to have been physically exhausting, indoors or outside, even if you're not a old fucker like me. Caring for 20-30 kicks my ass these days.

The seed shelling was the worst part!

I believe in having help, unlike my younger days...

Hell... there was a time I could just pop into a thread and shit all over everybody before I ever realized that I didn't know anything that I thought I did... before the internet.

Outdoor is out of the question with all of the pollen chucking going on these days (in my opinion).

I usually cull males halfway regardless of pollen shed.
 

buzzmobile

Well-known member
Veteran
A week or so ago I started a thread titled, "Show Your Studs" and posted this pic:
I missed your thread, @CharlesU Farley so I'll show some males that I have chucked.

Oaxaca male flowering upstairs in a sunny window while the girls are underground.
1708175199993.jpeg

1708175250359.jpeg

1708175274218.jpeg

1708175353630.jpeg

1708175462801.jpeg
 

revegeta666

Not ICMag Donor
Hey man this thread is getting really tedious to follow with you arguing with everyone and making the thread about yourself.

It seems nobody in this thread is interested in your opinions or arguing with you. Maybe you could open a different thread for your autos or whatever you want to talk about? I'm sure there you will get the attention you deserve.

That way maybe we can keep the thread on topic for those of us following the discussion.
 
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buzzmobile

Well-known member
Veteran
I bought my first LED in December 2017 from Fluence. I had used 1KW MH in veg and 1KW HPS in flower. Heat was the biggest issue in my rooms in the summer. Seeing other growers' results under LED prompted the purchase. I bought the second SpydrX plus a few weeks later.

I am very satisfied with the buds grown under LED vs HPS.
 

mean mr.mustard

I Pass Satellites
Veteran
I'm still flowering under HPS, but I'm shopping for LED for the spring.

I have come around to the fact that LED lights have come a long way.

I have a friend who grows with almost all LED (he's got a couple 315's) and I have witnessed firsthand the quality and quantity of dense buds grown under the technology.
 

Brother Nature

Well-known member
I run a CMH with the led's in winter, to assist with the heat. It's only in the flower tent though so I went with 3k bulb. I'm running it in my veg tent now as the solo light and the 3k is just fine for vegging as well. I'm going to flower the veg tent under just the CMH too, just to have a comparison on how the same strains react to different lights. I'm very happy with my led's though, they produce me some very nice plants.

Sour D - Mid flower and early flower

full
full
 

weedemart

Well-known member
It's actually Far Red, not Infrared, and it makes up about 25% of sunlight. Far Red is nominally defined as 700-800nm, but the Emerson Effect peaks at around 720nm and most shade avoidance (and Emerson) effects are triggered below 750nm. The main LED lights have 10% Far Red.

The side lights in the photos are a mix of PC Red (broad-spectrum red) and 4000K white.

Here is the PC Red spectrum
View attachment 18960541

And the 4000K CRI90 spectrum
View attachment 18960542

And combined
View attachment 18960540

Actually this is the old theory. The things Emerson discovered he couldnt explain was the improved growth under spectrum with far-red light.At this time the accepted range was 400-700nm.Emerson stated that plant could have multiple photo systems and he was right

We know for at least the last decade that far-red affect phytochrome state of the plant causing the shade avoidance response. Modern grower use far red to manipulate plant stretch and stimulate root devellopment.That's why the range was extended to 750nm. Now the Emerson effect is more looked like a precursor to the modern light scientist like Bugbee.




Every lenght of light from 400-750nm have an effect in plant photosynthesis, they even trying to include UVB 300nm range and even Bugbee support this. Thing with UVB, less is more.


Far red have the property to drive auxin in the shoots which create elongation. When correctly mastered , you can do it the same way and drive auxin the rootzone. But commercials are not ready for this anyway.

I learned that far red with cannabis can be undesirable , especially in flowering if you want tight plants. Incredibly usefull for lettuce and micro greens tho.
 
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Prawn Connery

Licence To Krill
Vendor
Veteran
Actually this is the old theory. The things Emerson discovered he couldnt explain was the improved growth under spectrum with far-red light.At this time the accepted range was 400-700nm.Emerson stated that plant could have multiple photo systems and he was right

We know for at least the last decade that far-red affect phytochrome state of the plant causing the shade avoidance response. Modern grower use far red to manipulate plant stretch and stimulate root devellopment.That's why the range was extended to 750nm. Now the Emerson effect is more looked like a precursor to the modern light scientist like Bugbee.




Every lenght of light from 400-750nm have an effect in plant photosynthesis, they even trying to include UVB 300nm range and even Bugbee support this. Thing with UVB, less is more.


Far red have the property to drive auxin in the shoots which create elongation. When correctly mastered , you can do it the same way and drive auxin the rootzone. But commercials are not ready for this anyway.

I learned that far red with cannabis can be undesirable , especially in flowering if you want tight plants. Incredibly usefull for lettuce and micro greens tho.

I'm not quite sure the point you're trying to make, but PSII converts photonic energy to 680nm equivalent via an electron chain, then passes the remaining energy to PSI which is converted to 700nm. The reason 700+nm is not photosynthetically active is because the energy equation can only go one way: photons that are absorbed by each pigment can only lose energy – they can't gain energy – so any photons 700nm or above do not contribute to photosynthesis.

However, Far Red photons have a quenching effect on photoreceptors that allows more absorption of red light – and that's basically the Emerson Effect. It's not that Far Red photosynthesis, but rather it helps other receptors absorb more light before they are saturated.
 

Prawn Connery

Licence To Krill
Vendor
Veteran
Actually this is the old theory. The things Emerson discovered he couldnt explain was the improved growth under spectrum with far-red light.At this time the accepted range was 400-700nm.Emerson stated that plant could have multiple photo systems and he was right

We know for at least the last decade that far-red affect phytochrome state of the plant causing the shade avoidance response. Modern grower use far red to manipulate plant stretch and stimulate root devellopment.That's why the range was extended to 750nm. Now the Emerson effect is more looked like a precursor to the modern light scientist like Bugbee.




Every lenght of light from 400-750nm have an effect in plant photosynthesis, they even trying to include UVB 300nm range and even Bugbee support this. Thing with UVB, less is more.


Far red have the property to drive auxin in the shoots which create elongation. When correctly mastered , you can do it the same way and drive auxin the rootzone. But commercials are not ready for this anyway.

I learned that far red with cannabis can be undesirable , especially in flowering if you want tight plants. Incredibly usefull for lettuce and micro greens tho.

Ah. Now I remember you. You were the guy who was going to school us all on how to grow on a massive scale, right? You claimed to be an expert grower and then started your little 4-plant rockwool grow and apparently couldn't even finish it and killed the plants!


I think we've dished out enough punishment to you in this thread already, but unfortunately I have to dish out a little more, because you are spreading more "bro science" and there's no room for bro science next to real science in my world.

weedemart said:
I learned that far red with cannabis can be undesirable , especially in flowering if you want tight plants.
This is absolutely not true and I will explain why. Look outside > do plants stretch excessively under sunlight? No. Sunlight contains 25% Far Red. It has a Red-to-Far Red ratio of (on average) around 1.3:1.

Many LED grow lights on the market have a R:FR ratio of up to 30:1. Ratios of 15:1 are typical. Our lights have around 4:1

So how is it even possible for indoor plants to stretch under R:FR ratios far higher than sunlight? And why do our lights not induce shade avoidance with over 10% Far Red when you claim "that far red with cannabis can be undesirable , especially in flowering if you want tight plants"?

I know the answer (which I will reveal later) – do you? (For those who don't know, the red to far red ratio triggers shade avoidance, but it is not as simple as that.)

Here is an 80% sativa I grew. It flowers for at least 12 weeks. You would expect it to stretch like a bastard with all the far red in my lights, right? Nope.

10% Far Red light. Pretty undesirable, right? :ROFLMAO:

Also, I just thought I'd show you what a plant looks like when it flowers, because apparently your last plants died before they got the chance. :smoky:
1708622565027.png
 

greyfader

Well-known member
It's actually Far Red, not Infrared, and it makes up about 25% of sunlight. Far Red is nominally defined as 700-800nm, but the Emerson Effect peaks at around 720nm and most shade avoidance (and Emerson) effects are triggered below 750nm. The main LED lights have 10% Far Red.

The side lights in the photos are a mix of PC Red (broad-spectrum red) and 4000K white.

Here is the PC Red spectrum
View attachment 18960541

And the 4000K CRI90 spectrum
View attachment 18960542

And combined
View attachment 18960540
nice! The term "relative intensity" means a lot here. you have significantly changed the blue/red ratio.

i think that was what caused the increase in mass in my last grow.

you added a large amount of dark red as well as far-red.

i did it with incandescent. you did it with led. Are these broad-spectrum reds one chip or several combined?
 

CrushnYuba

Well-known member
quality is subjective.... kind of. allot of people here grow in small spaces and trim their own flower. allot also have different taste then the average hipster that would buy my weed. if you are growing in a larger space you do need to worry about what the average hipster wants. you also need to worry about processing it. trimmers aren't paid 200$ a lb anymore. they can be pretty picky what they work on.
basically quality is subjective until you are trying to sell 100lbs of it.

i grow mostly in a greenhouse with LED for veg. i think this is ideal for power consumption, quality, and strong plants. Not everyone has acres in the most perfect climate in the world to put up greenhouses though. i would rather smoke indoor HID then LED.
 

Prawn Connery

Licence To Krill
Vendor
Veteran
nice! The term "relative intensity" means a lot here. you have significantly changed the blue/red ratio.

i think that was what caused the increase in mass in my last grow.

you added a large amount of dark red as well as far-red.

i did it with incandescent. you did it with led. Are these broad-spectrum reds one chip or several combined?
Would you believe they are a blue 450nm diode?

They are actually a blue diode with a red phosphor (hence the name "phosphor coated red") and they are a 5050 design with three dies.
 

weedemart

Well-known member
Ah. Now I remember you. You were the guy who was going to school us all on how to grow on a massive scale, right? You claimed to be an expert grower and then started your little 4-plant rockwool grow and apparently couldn't even finish it and killed the plants!


I think we've dished out enough punishment to you in this thread already, but unfortunately I have to dish out a little more, because you are spreading more "bro science" and there's no room for bro science next to real science in my world.


This is absolutely not true and I will explain why. Look outside > do plants stretch excessively under sunlight? No. Sunlight contains 25% Far Red. It has a Red-to-Far Red ratio of (on average) around 1.3:1.

Many LED grow lights on the market have a R:FR ratio of up to 30:1. Ratios of 15:1 are typical. Our lights have around 4:1

So how is it even possible for indoor plants to stretch under R:FR ratios far higher than sunlight? And why do our lights not induce shade avoidance with over 10% Far Red when you claim "that far red with cannabis can be undesirable , especially in flowering if you want tight plants"?

I know the answer (which I will reveal later) – do you? (For those who don't know, the red to far red ratio triggers shade avoidance, but it is not as simple as that.)

Here is an 80% sativa I grew. It flowers for at least 12 weeks. You would expect it to stretch like a bastard with all the far red in my lights, right? Nope.

10% Far Red light. Pretty undesirable, right? :ROFLMAO:

Also, I just thought I'd show you what a plant looks like when it flowers, because apparently your last plants died before they got the chance. :smoky:
View attachment 18963117

I never heard about the Emerson effect from no one except me. Thats funny you call what I say ''bro science'' when i came up with all this litterally YEARS before Bugbee confirm everything. The Emerson effect IS a bro science , the real science is explained by Bugbee and you basically just quoted him on the subject. I added even more science by adding Canna article on the subject.

Once again you are going personal.I killed my only valuable female ... Wow... I'm chasing the best girl. Why you think I started over. Theres no selection if I have only one individual. We have different goal growing. You should widen you views. Theres grower that have high level understanding of what they are doing and theres grower that doesnt know what they are doing. Everything else mean nothing to me. Don't care you have a batcave with thousand plants if you doesnt know. I could do volume anytime. I'm just not willing to spend times on sometimes that has no value to me.I'm not growing for profit. Knowledge above everything else, there is the value.


//So how is it even possible for indoor plants to stretch under R:FR ratios far higher than sunlight? And why do our lights not induce shade avoidance with over 10% Far Red when you claim "that far red with cannabis can be undesirable , especially in flowering if you want tight plants"?

I know the answer (which I will reveal later) – do you? (For those who don't know, the red to far red ratio triggers shade avoidance, but it is not as simple as that.)//

1.Because your nutrients is not balanced.Other than that, well, only the fact that all the plant are tightly packed in a room create a shade avoidance response. If you add in the fact that theres probly not enought stress;wind etc... once again it create an environnement more likely to stretch than outdoor. But on the opposite side, if you know , indoor your plant can be tighter than outdoor!

2. It does induce some kind of shade avoidance response of course , this is the main role far red. You say it doesnt induce but how could you prove it, did you make an side by side led vs cmh just for fun? Stretch is caused by an hormonal response caused by the shade avoidance response.

3. far red is a new hype. not a game changer in cannabis. but it does help in certain situation like cloning and moms.
 
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