Leaf Discolouration

[JG420JG]

Hey Guys,

 

Wondering if you can lend me a hand. I’ve just mainlined my two plants at 4 weeks at the 3rd node. Now I understand some stress is going to occur but I’ve got the big fan leaves starting to change in some colour. Any help please!!!!!

 

 

 

 

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[merl1n]

Hey JG,

In mainlining her you've just stressed the bejeezus out of her and that can be a contributor to the discolouration as she sucks the required nutes from those leaves.

The leaves are a bit like the plants reservoir, she stores nutes in the leaves then draws on them as needed. Normally, she'll do so from the larger lower leaves first and looking at those pics IMHO that's what she's doing.

Now, if that colour change was occurring to the new growth, right at the growing point, that WOULD be a concern. But considering her mainline stress, she's had a shock, keep an eye on her (as I'm sure you will) but she's doing OK.

 

Just for your reference here's a chart  that could assist in diagnosing deficiencies. 

 

 

Hope it helps

Merl1n

[JG420JG]

Thanks Merlin. Always very helpfull!!!

 

 

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[micmac]

Yep I agree with Merl to a certain extent

 

Why did you chop off all your growth , more leaves more photosynthesis

 

What you are trying to do well let's just say its a waste of time

 

Please tell me what you cut off you used for clones

 

The the part I don't agree with is the explanation of why

 

Without going into detail , the plants aren't using nutrients stored in those leaves , old wives tale , what they produce during the day is used of at night just to make it simple

 

Just because you have light for 18 hrs + doesn't mean the plant is in photosynthesis , it isn't

 

As soon as the leaves can't hold any more the process shuts down , so in fact they may only he active for 14hrs

 

Most nutrients will be in the stems , leaves are the factory, stems and roots the warehouse

 

The bigger the surface area collecting light the better

 

The reason your plant imo is showing brown rusts spots is high humidity low temperature , maybe insufficient air flow and or extraction

 

They don't look hungry to me

 

Bit of advice , leave it alone and let it grow

 

Sorry Merl , no offence

 

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[JG420JG]

Air flow and extraction isn’t a problem. Temp and humidity is dialled in too. I did mess up and cut all the lower growth too early. Should have left it until they recovered

 

 

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