Nute burn or plant deficiency ?

[Peerpressure517]

Week 6 flower few plants yellowing an leaves turning dark purple

Growing in coo

Fabric pots

Using power si bloom sensi cal mag purpinator flora flex b1 b2 emerald harvest an advance big bud and mammoth p

Ph 6.0

Feed cycle - feed water feed

 

[Nectarivorous]

My understanding is that purpling can happen in plants prone to it due to large diurnal range - what are your day/nite temps? As for yellowing pretty natural as the plants mature. They look to me like pretty damn healthy plants doing what they should for this point in their lives.

 

[Peerpressure517]

Day time temp is 73-77 45% humidity
Night time 69-70
The first picture just looks a little odd to me but just wanted to make sure I'm fairly new to growing but thanks bro

 

[Nectarivorous]

Me too tbh, someone with more knowledge will be able to tell you exactly what that bit of russet around the leaves in the first pic is but they look awesome, the people might just be a pheno thing. What's the strain?

 

[detroitjoe]

That doesnt look like a nute burn.

cold roots stop the uptake of calcium and magnesium.

if the temps at the roots are within range, it bad genetics.

at this point, that harvest is shit.
I am sorry for your loss / losses

and welcome to the farm!

and GREAT PICS.

 

[Peerpressure517]

Me too tbh, someone with more knowledge will be able to tell you exactly what that bit of russet around the leaves in the first pic is but they look awesome, the people might just be a pheno thing. What's the strain?

The first Pic is vlone runtz
The others are Gelato 33
It's just that one plant with the vlone that'd actually doing that

 

[Peerpressure517]

That doesnt look like a nute burn.

cold roots stop the uptake of calcium and magnesium.

if the temps at the roots are within range, it bad genetics.

at this point, that harvest is shit.
I am sorry for your loss / losses

and welcome to the farm!

and GREAT PICS.

So are you saying it's getting to cold in my grow room when lights our off it's just those couple plants that are currently like that the others are fine

 

[Moshmen]

First they will make it to harvest ! The first pics look like the uptake issue cold roots can cause this - is your pots on a cold floor? Could also be your watering habits causing the uptake issue. But your in coco how many times a day are ya watering and how much run off are ya getting ? Are ya letting the coco dry? If so that can cause salt build up

second set of pics looks normal nice work

 

[Moshmen]

So are you saying it's getting to cold in my grow room when lights our off it's just those couple plants that are currently like that the others are fine

Ambient temps are good Doesn’t mean the roozone and leaf temps are

 

[Peerpressure517]

First they will make it to harvest ! The first pics look like the uptake issue cold roots can cause this - is your pots on a cold floor? Could also be your watering habits causing the uptake issue. But your in coco how many times a day are ya watering and how much run off are ya getting ? Are ya letting the coco dry? If so that can cause salt build up

second set of pics looks normal nice work

I'm In MIchigan an it's a basement so the cold might br thr issue but there not on the floor I have these foam like mats about 3 inches thick but I raised the temp at night she seems to be getting her color back now I usually water till some run off when I water only to flush out the built up salts... I feed every 2-3 days should I not be letting it dry it out so much

 

[Moshmen]

I'm In MIchigan an it's a basement so the cold might br thr issue but there not on the floor I have these foam like mats about 3 inches thick but I raised the temp at night she seems to be getting her color back now I usually water till some run off when I water only to flush out the built up salts... I feed every 2-3 days should I not be letting it dry it out so much

Sounds like good practices cold roots slow everything down