Light stress in auto flower

J

Jonny45

Member
My auto flower has been showing signs of yellowing at the top I’m almost certain it’s light stress I have a Mars hydro tsw2000 over a gsc extreme autoflower. I had her at 16” from light with 100 percent intensity coming from it. Sometimes 75 sometimes 50. My question is will it stress it and backlog it from the stress? Leaves are starting to yellow just the very top you can’t really tell in pictures but it’s there. Suppose I want to get huge buds how will I be able to use my light to its fullest if I can’t even get 16 inches from it without bleaching the shit out of the leaves.. I have seen people put the light almost 2 feet away and still get good buds! This confuses me because aren’t you suppose to get bigger buds the closer and brighter the light is? Btw small one is a photoperiod shiskaberry + 2.0 and the big one is the autoflower she’s about 4 and a half weeks
 

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Wattzzup

Wattzzup

Well-Known Member
Everything is about balance. Close light won’t help if everything else is out of whack. You have a very slight downward claw on the plant to the right. That could be a couple things. Can you please provide medium info and how often and how much are you watering?
 
Kdoggy

Kdoggy

Well-Known Member
Jonny45 said:
My auto flower has been showing signs of yellowing at the top I’m almost certain it’s light stress I have a Mars hydro tsw2000 over a gsc extreme autoflower. I had her at 16” from light with 100 percent intensity coming from it. Sometimes 75 sometimes 50. My question is will it stress it and backlog it from the stress? Leaves are starting to yellow just the very top you can’t really tell in pictures but it’s there. Suppose I want to get huge buds how will I be able to use my light to its fullest if I can’t even get 16 inches from it without bleaching the shit out of the leaves.. I have seen people put the light almost 2 feet away and still get good buds! This confuses me because aren’t you suppose to get bigger buds the closer and brighter the light is? Btw small one is a photoperiod shiskaberry + 2.0 and the big one is the autoflower she’s about 4 and a half weeks
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No too much light is bad but i really dont see your bleaching issues. I run a 1000 hps 17-20”. I run my leds at 12” but im not running the 2000 only 600’s so obviously i dont have the same intensity. If u think its bleaching it raise it up if u bleach it will start to stunt plant.
 
Wattzzup

Wattzzup

Well-Known Member
Kdoggy said:
No too much light is bad but i really dont see your bleaching issues. I run a 1000 hps 17-20”. I run my leds at 12” but im not running the 2000 only 600’s so obviously i dont have the same intensity. If u think its bleaching it raise it up if u bleach it will start to stunt plant.
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I think what he sees is the plant lightening on top. That happens on new growth. I also do not see light bleaching.
 
J

Jonny45

Member
Wattzzup said:
Everything is about balance. Close light won’t help if everything else is out of whack. You have a very slight downward claw on the plant to the right. That could be a couple things. Can you please provide medium info and how often and how much are you watering?
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That is the shiskaberry she was topped above the 4th or 5th node and she is the same stuff the automatic is in. It’s natures care organic mix coco and yucca and some kelp in it worm poop stuff like that. It’s from the makers of miracle gro but I figured since the nitrogen is low and also isn’t slow release it would do ok. Alfalfa meal is the source of nitrogen
 
Wattzzup

Wattzzup

Well-Known Member
How big of a container and how often you watering?

I have used that soil it’s amazing. People can shit on MG all they want. If I could find it I would use it again.
 
J

Jonny45

Member
Wattzzup said:
I think what he sees is the plant lightening on top. That happens on new growth. I also do not see light bleaching.
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Yea the yellowing looks splotched on some bigger leaves too almost faint yellow splotches not super noticeable ph is in range run off is 6.3 to 6.4 and is coco... I’m using the Lucas formula maxi bloom start to finish
 
J

Jonny45

Member
Wattzzup said:
How big of a container and how often you watering?

I have used that soil it’s amazing. People can shit on MG all they want. If I could find it I would use it again.
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For the shiskaberry she is getting the 13-3-15 tezula plants orchid fertilizer twice a week 1 gallon of water each time and pot is a 1 gallon pot I plan on flipping her in about 2 weeks under the Mars hydro ts600 next to the 2000
 
Wattzzup

Wattzzup

Well-Known Member
Can you post a pic or link of the bag you have? I have used the potting soil before. I’m wondering if it’s the same one?
 
J

Jonny45

Member
It’s a plant lol but the mix that comes in the bag has the organic stuff along with coir yucca and other forest stuff like twigs and perlite and all that. Says it’s for moisture control
 
J

Jonny45

Member
Kdoggy said:
Why are you using orchid fertilizer what you had in the cupboard? Lol
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Look up 19-4-23 when you get a chance. I was also skeptical until I joined the almost 2000 friend group on Facebook and they are all cannabis growers like us and swear by the stuff check it out man 19-4-23 is the well water blend and 13-3-15 is the RO and tap blend
 
Wattzzup

Wattzzup

Well-Known Member
Jonny45 said:
Look up 19-4-23 when you get a chance. I was also skeptical until I joined the almost 2000 friend group on Facebook and they are all cannabis growers like us and swear by the stuff check it out man 19-4-23 is the well water blend and 13-3-15 is the RO and tap blend
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What do you add for P? That seems way out of whack
 
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