Hi,
thank you.
Very interesting for me since i have something similar in my first grow and cant exactly point out the cause.
Which is important in respect of learning something from my first to grow to avoid mistakes the next time.
I im growing 4x unknown strain. Day 55 of flower, purpling started last 2,5 weeks, but the biggest of them just getting purple in the last week.
From the plant that it most purple i made a toppling from (when the plant was totally green in veg) and replanted it in a new pot.
But its not showing this purpling, so i wondered what the heck -doesnt seem to be an obvious trait of this strain.
So i wondered if my DIY spectrum is maybe bad and causing that or i overferted or something like that.
Are blue leds overloading the photosythesis stressing the plant to produce more anthocyanins to defend itself from oxidants/ free radicals?
I guess thats would be very bad?
On the other hand im growing a skunk in the same environment its not showing purple at all
But then its also intriguing that one plant isnt getting purple all around but just at those buds closest to my panel, but spreading.
(compare picture 2 and 3 and 4. Its the same plant, 3rd picture shows the side that has the most distance from the panel, almost no purple at all)
-Just like in your picture, one side totally purple, the other one still perfectly green.
In the matter of led i only always read about "bleaching" from blue, but purple isnt exactly the same, is it.
Im using mostly WW, CW and Red leds in like 5:2:3
But if the led itsself are the cause, i thought id probably have seen waaaay more pictures of something like this in LED and DIY Led grows.
My temps are like 19°C-25°C. I read purple is usually caused by way cooler temps.
Id really like to get to the bottom of this