Too much light?

harrychilds

harrychilds

Well-Known Member
Now that I look closer I can see what you're talking about, yeah I would probably raise the light up a few inches and monitor them to see if it gets worse dude :bigjoint:
 
DrDukePHD

DrDukePHD

Well-Known Member
harrychilds said:
Now that I look closer I can see what you're talking about, yeah I would probably raise the light up a few inches and monitor them to see if it gets worse dude :bigjoint:
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Yea cool i figured something was up. Is it called varigated leaf edges or something? I can't raise it up any higher so I dimmed it down a bit from 75% to whatever this setting is.. 60 maybe 65?
20220916_181724.jpg

Light at 22-24". Photone was reading 400-450ppf before, now it's in the low 300's at canopy. This plant is finicky! (Or I suck at caring for it)
 
harrychilds

harrychilds

Well-Known Member
DrDukePHD said:
Yea cool i figured something was up. Is it called varigated leaf edges or something? I can't raise it up any higher so I dimmed it down a bit from 75% to whatever this setting is.. 60 maybe 65?
View attachment 5198839

Light at 22-24". Photone was reading 400-450ppf before, now it's in the low 300's at canopy. This plant is finicky! (Or I suck at caring for it)
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I think so dude, sometimes it can be caused by too much heat as well, now you have turned your light down slightly just keep monitoring your temps and if it gets worse it could be a heat issue rather than too much light if that makes sense, but I'm guessing on the side of too much light the same as you dude bongsmilie
 
DrDukePHD

DrDukePHD

Well-Known Member
harrychilds said:
I think so dude, sometimes it can be caused by too much heat as well, now you have turned your light down slightly just keep monitoring your temps and if it gets worse it could be a heat issue rather than too much light if that makes sense, but I'm guessing on the side of too much light the same as you dude bongsmilie
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I got an AC cranking it NEVER goes above 81f, at Lights out it's at 73.

MICHI-CAN said:
IR heat stress from lights. Ambient and surface temps will vary as IR only heats when on a surface. How well are you letting your roots breath?
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Ok I turned the light down. As for roots, im in FFOF, I let the pot dry out before watering, is that what you're asking?
 
MICHI-CAN

MICHI-CAN

Well-Known Member
DrDukePHD said:
I got an AC cranking it NEVER goes above 81f, at Lights out it's at 73.


Ok I turned the light down. As for roots, im in FFOF, I let the pot dry out before watering, is that what you're asking?
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If you have a campfire when it is cold. Does your face not get warm facing the fire? Air is cold. LOL.

Yes FF. TY. Bad habit of faking dry. Easily over watered leading to root fungus and failing plant health. And then we all turn up the food because it deficient. LOL and GRRRR!

en.wikipedia.org

Crookes radiometer - Wikipedia

en.wikipedia.org en.wikipedia.org
 
DrDukePHD

DrDukePHD

Well-Known Member
MICHI-CAN said:
If you have a campfire when it is cold. Does your face not get warm facing the fire? Air is cold. LOL.

Yes FF. TY. Bad habit of faking dry. Easily over watered leading to root fungus and failing plant health. And then we all turn up the food because it deficient. LOL and GRRRR!

en.wikipedia.org

Crookes radiometer - Wikipedia

en.wikipedia.org en.wikipedia.org
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Ok so I turned down the light, I wait until the pot is super light & leaves droop... and then I water in Southern Ag Garden Friendly Fungucide. Sound like a plan?
 
MICHI-CAN

MICHI-CAN

Well-Known Member
DrDukePHD said:
Ok so I turned down the light, I wait until the pot is super light & leaves droop... and then I water in Southern Ag Garden Friendly Fungucide. Sound like a plan?
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I'm not familiar with fungicide. And I never suggest use of one in your soil. They kill the good fungus. I would just go straight water after leaves droop mid light cycle. "Not before lights out." Many plants relax towards dark.

I'm a soil guy. Hope to help.
 
Budzbuddha

Budzbuddha

Well-Known Member
Leaf surface temp - serrated edges can curl slightly to conserve moisture / evaporation increases over 80° . Especially with high intensity lights.
Air exchange over and thru plants help reduce it. Light stress is another - dimming to a more “ comfortable “ setting is better than mashing the gas on light power. Distance to the canopy also plays into it.

On fence about fungicide as plant has good uniform growth and color. During these hot times plant will be transpiring more .
 
DrDukePHD

DrDukePHD

Well-Known Member
Budzbuddha said:
Leaf surface temp - serrated edges can curl slightly to conserve moisture / evaporation increases over 80° . Especially with high intensity lights.
Air exchange over and thru plants help reduce it. Light stress is another - dimming to a more “ comfortable “ setting is better than mashing the gas on light power. Distance to the canopy also plays into it.

On fence about fungicide as plant has good uniform growth and color. During these hot times plant will be transpiring more .
Click to expand...
Ok so dimming the light was the right move?
 
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