Twisted leaves in early veg

[Brownstyles77]

G'day can anyone help me out with this issue I'm having with my leaves?

 

[Sedge]

Looks like a chainsaw massacre,,
Not seen that before unless it’s a mutant strain..

and welcome to TSE mate

 

[Budbubbla]

What are your temps sitting at mate? I'd say it's heat stress.

 

[Brownstyles77]

26.5 - 27 through lights on
21 - 22 through dark hours

 

[Gazza]

Looks like heat stress to me too are u running a 600w hps ?

 

[Budbubbla]

I'd say your humidity is probably too low for the temps fella, you'd wanna be around 60-80% during early mid veg , that or you have the light cranked up or a bit close

 

[Brownstyles77]

Looks like heat stress to me too are u running a 600w hps

Iam yes but only on 250 setting

 

[One Drop]

Sulphur slight lack of

 

[OZIOZIAUTO]

heat stress ! ?

 

[Brownstyles77]

heat stress ! ?

Maybe
Could it be cold stress? By this I mean that my grow room has been sucking in the night time freezing cold air like 10 degrees sometimes lower even.
Could the chilli air going into warm room be causing it?

 

[OZIOZIAUTO]

Maybe
Could it be cold stress? By this I mean that my grow room has been sucking in the night time freezing cold air like 10 degrees sometimes lower even.
Could the chilli air going into warm room be causing it?

cold fighting the hot ?

 

[Gazza]

Are you growing in coco?

 

[VinDeezle]

I've been getting some leaf twist with the dry air lately. It's down to 25% or so at 26c during the day recently.

I'm with sedge (it does look very similar to chainsaw), it kinda looks like a genetic mutation is compounding with an environmental issue (pH, humidity) as the leaf is showing more than just twist. Those serrations are pretty wild.

 

[OZIOZIAUTO]

I've been getting some leaf twist with the dry air lately. It's down to 25% or so at 26c during the day recently.

I'm with sedge (it does look very similar to chainsaw), it kinda looks like a genetic mutation is compounding with an environmental issue (pH, humidity) as the leaf is showing more than just twist. Those serrations are pretty wild.

a genetic mutation WHAT ? how ?

 

[Mellow oldfark]

kale pheno?

 

[VinDeezle]

a genetic mutation WHAT ? how ?

As in genetic expression that varies from the more standard serration profile. Ie, most of the freak strains you see come from a mutation that was selectively bred into the plant.

I've always wanted to try breed in a trifoliate strain, but nobody seems to have been able to stabilise the tri-compound leaf arrangement yet.

Example, I have some afghan cross here and roughly 1/6 will pop odd serrations.

 

[OZIOZIAUTO]

As in genetic expression that varies from the more standard serration profile. Ie, most of the freak strains you see come from a mutation that was selectively bred into the plant.

I've always wanted to try breed in a trifoliate strain, but nobody seems to have been able to stabilise the tri-compound leaf arrangement yet.

This fkn weed is unfuknreel

 

[Brownstyles77]

Are you growing in coco?

Yes