Keep them under 24/0 or move to 12/12? - Auto Flowering - International Cannagraphic Magazine Forums

Justa6655321 · 06-09-2009, 10:27 PM

What do you guys do when flowering starts?

I would think 24/0 would be best right?

raz1012 · 06-09-2009, 10:31 PM

I assume your talking about autoflowers. Some say 24/0 is best but I never saw much of a difference between 24/0 and 18/6(except that the electric bill was lower and some strains get a fatigued appearance at 24/0). So I would go 18/6 the whole way through if I were you.

SpaDeKo · 06-09-2009, 10:52 PM

Give it 18/6.
The plants probably needs some "rest" in the dark period.

J-Blunt · 06-09-2009, 10:55 PM

ive heard 20/4 from alot of ppl actually...even some breeders recommend it

Justa6655321 · 06-09-2009, 11:23 PM

The problem is.....I have a veg room i keep 24/0 and a flowering room i do 12/12 - hps only in the flowering room.

bromhexine · 06-10-2009, 04:18 AM

might be beneficial to switch the veg room to 20/4 ive read that especially with non af plants they need some dark period for certain functions. then you can slip your autos in there too

*mr.mike* · 06-10-2009, 04:32 PM

Quote:

Originally Posted by bromhexine

might be beneficial to switch the veg room to 20/4 ive read that especially with non af plants they need some dark period for certain functions. then you can slip your autos in there too

...Old wives' tales.

DIRT DIGGLER · 06-26-2009, 05:56 AM

I grew auto aks on 24/0 and I will be going 18/6 or 20/4 this time around.
I think they needed some downtime,I was expierenceing some bleaching problems. also I think the dark period is when the root system goes into overdrive,although I could be wrong about this. also with a dark period it will allow some of the heat to dissipate from my grow during the hot summer afternoons and give my ballast a break.

06-26-2009, 07:10 AM

Quote:

Originally Posted by *mr.mike*

...Old wives' tales.

I have heard that this is false, but no one in my experience, has backed up the claim that a dark period is unnecessary. Indeed, even Mdanzig, if I recall correctly, says his plants love 24/0.

However, I came across a post defending the idea that plants do in fact need a dark period. That person listed these links that scientifically bolster the claim that dark period is critical:

ttp://www.biology.duke.edu/bio265/zhangmin/Aboveground.htm

ttp://oasd-ebi.das.bnl.gov/Modelling/respirat.htm

ttp://www.plantphysiol.org/cgi/content/abstract/107/2/421

ttp://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=10755 36

ttp://www.pnas.org/content/98/5/2479.full

If you take the time to actually go through, read, and comprehend any of them, they show a pretty clear answer - it isn't an old wives' tale for nothing.

Botanist · 06-26-2009, 07:31 PM

24/0
No need for down time. I do it all the time. I have no problem. You only have so much time to grow an auto. Why wast it in the dark? Some plants of all kinds need down time to trigger different stages of its life. Auto's do not.

06-09-2009, 10:27 PM	#1
Justa6655321 Senior Member Join Date: Nov 2008 Posts: 1,491	Keep them under 24/0 or move to 12/12? What do you guys do when flowering starts? I would think 24/0 would be best right? __________________ Lang Leve de Koningin DG Fear leads to anger; anger leads to hate; hate leads to suffering.
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06-09-2009, 11:23 PM	#5
Justa6655321 Senior Member Join Date: Nov 2008 Posts: 1,491	The problem is.....I have a veg room i keep 24/0 and a flowering room i do 12/12 - hps only in the flowering room. __________________ Lang Leve de Koningin DG Fear leads to anger; anger leads to hate; hate leads to suffering.
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06-26-2009, 07:31 PM	#10
Botanist Member Join Date: Feb 2009 Location: Big Rock Candy Mountains Posts: 326	24/0 No need for down time. I do it all the time. I have no problem. You only have so much time to grow an auto. Why wast it in the dark? Some plants of all kinds need down time to trigger different stages of its life. Auto's do not. __________________ Grow on! Botanist
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06-09-2009, 10:31 PM	#2
raz1012 Member Join Date: Feb 2006 Posts: 241	I assume your talking about autoflowers. Some say 24/0 is best but I never saw much of a difference between 24/0 and 18/6(except that the electric bill was lower and some strains get a fatigued appearance at 24/0). So I would go 18/6 the whole way through if I were you.
	Quote

06-09-2009, 10:52 PM	#3
SpaDeKo Member Join Date: Sep 2007 Posts: 45	Give it 18/6. The plants probably needs some "rest" in the dark period.
	Quote

06-09-2009, 10:55 PM	#4
J-Blunt Member Join Date: Jan 2009 Posts: 107	ive heard 20/4 from alot of ppl actually...even some breeders recommend it
	Quote

06-10-2009, 04:18 AM	#6
bromhexine Member Join Date: Jan 2009 Posts: 325	might be beneficial to switch the veg room to 20/4 ive read that especially with non af plants they need some dark period for certain functions. then you can slip your autos in there too
	Quote

06-26-2009, 05:56 AM	#8
DIRT DIGGLER Member Join Date: Apr 2009 Posts: 254	I grew auto aks on 24/0 and I will be going 18/6 or 20/4 this time around. I think they needed some downtime,I was expierenceing some bleaching problems. also I think the dark period is when the root system goes into overdrive,although I could be wrong about this. also with a dark period it will allow some of the heat to dissipate from my grow during the hot summer afternoons and give my ballast a break.
	Quote