Lower leaves

CannabisGuy · Mar 22, 2013

Hello growers of the world , CG is here :leaf:

quick question ,
i have this female , ~4~ month old ,
some of the lower leavs are gettin yellow and exhausted and dead ,

is it normal ?

Figong · Mar 22, 2013

Am willing to bet it's your typical Mg-def.. but if that's not it, it could also be N, P, or K if your pH is off and 1 or more is locked out.

CannabisGuy · Mar 22, 2013

Figong said:
Am willing to bet it's your typical Mg-def.. but if that's not it, it could also be N, P, or K if your pH is off and 1 or more is locked out.

i had one Mg-def and now it's my typical Mg-def ??

so the first old leavs shouldnt die at this point ? (after 4 month) it's definitely a def ?

Figong · Mar 22, 2013

They can die close to that point, but the yellowing to me looked more of a def - tis not my plant, and not my strain .. are you experiencing that with other plants or just this one specifically?

jondamon · Mar 22, 2013

How tall is the plant?

What lighting are you using?

IMO it looks like yellowing caused by insufficient light penetration to that part of the plant.

J

CannabisGuy · Mar 22, 2013

Figong said:
They can die close to that point, but the yellowing to me looked more of a def - tis not my plant, and not my strain .. are you experiencing that with other plants or just this one specifically?

this is a feminized blue mistic , royal queen breeder ..
im also have in my grow room an "auto quick one" , same breeder , which are in week 5 into flowering

CannabisGuy · Mar 22, 2013

jondamon said:
How tall is the plant?

What lighting are you using?

IMO it looks like yellowing caused by insufficient light penetration to that part of the plant.

J

i'm using a 250W HPS , which placed 35-40cm above the plant..
the planet hight from bottom to top is 45cm

jondamon · Mar 22, 2013

CannabisGuy said:
i'm using a 250W HPS , which placed 35-40cm above the plant..
the planet hight from bottom to top is 45cm

This is your issue.

Your plant is too big for the penetration if the 250w vs the distance between your light and plants.

You almost have 100cm between lamp and the bottom of your plant.

My 400w doesn't penetrate that far!!!!

J

jondamon · Mar 22, 2013

CannabisGuy said:
this is a feminized blue mistic , royal queen breeder ..
im also have in my grow room an "auto quick one" , same breeder , which are in week 5 into flowering
View attachment 2580821

This plant looks seriously hungry bro the point you now have deficiencies showing up.

Is this under the same 250w?

With 250w hps you can use around 2.2ftx2.2ft footprint.

Plants shouldn't exceed 1.5ft tall otherwise anything below this level won't receive enough light.

More plants means less light penetration too.

J

CannabisGuy · Mar 22, 2013

jondamon said:
This plant looks seriously hungry bro the point you now have deficiencies showing up.

Is this under the same 250w?

With 250w hps you can use around 2.2ftx2.2ft footprint.

Plants shouldn't exceed 1.5ft tall otherwise anything below this level won't receive enough light.

More plants means less light penetration too.

J

yes they are in the same room . and this hungry plant strted to yellowing when the flowering got advanced..and i flushedher and add an epsom salt in the next flowering , and yesterday i water with 1/4 feed..thinkin about harvest if there's no changes in the development..before she die on me or get bud rot ,
and yes the room is too crowded.. ><

Lower leaves

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