Purple petiole

M

Mr.Power

New member

• Jun 3, 2012

• #1

Hi, please help me.

I have NFT 100 with 9 plant.
Nutrients is Canna Aqua.
19. day 12/12 period.
2 day ago, I came to box and saw all of 9 plants have purple petioles.
This nigh was temperature 20*C air and 19*C water = an avarage.
EC is 1,0 and stay at this. (Canna aqua A+B, little canazyme and little boost)
PH stable 5,6-5,8

I thinking it is deficite P.
What mean you?
Here is my thread >.https://www.icmag.com/ic/showthread.php?t=236991&page=2
Sory for my english

 

joe fresh

Active member

Mentor

Veteran

• Jun 6, 2012

• #2

yes looks like P def with mybe the start of a cal def too...looks like yellow spots starting in the middle of the leaf...

i would maybe up the nutes a bit

 

S

SeaMaiden

• Jun 7, 2012

• #3

I must agree with the fresh joe.

 

yoss33

Well-known member

Veteran

• Jun 7, 2012

• #4

Looks quite healthy to me.
The purple leaf stem is nothing to bother about. And the yellowing leaf could be just old?? I don't see any other like it.
I think many people expect all leaves to stay dark green till harvest, but that is not really the "healthy" look of mature cannabis. And fertilizing in order to keep a 2-month-old fan leaf green during flowering is plain over-fertilizing to me.

 

Minister

Member

• Jun 7, 2012

• #5

https://www.icmag.com/ic/showthread.php?t=237813

This coco thread has some info on purple petioles, and wether its a def symptom, climate, or genetic issue.

Be warned, some mud is thrown in the end.
But you dont have to read it all, to make up your own opinion.