24/0 yields 5% increase - true or false?

[mike827]

Hi all,

I read here a seemingly copied and pasted thread on here, AFN, and GC. It states that:

18/6, 20/4 or 24/0? Which one do you choose? That is entirely up to you. There isn't much difference between them. 24/0 will produce slightly shorter plants and about a 5% increase in yield. That's about it. Just remember to give your plants at least 18 hours of light per day for maximum growth and yield.

Can anybody comment on this claim? I've heard it NOWHERE else except this copypasta "autoflower grow guide" that appears here and there.

Source (sorry could only find the GC version):
http://forum.grasscity.com/indoor-marijuana-growing/674011-how-grow-best-auto-plants.html

EDIT: Found the ICMAG version!
http://www.icmag.com/ic/showthread.php?t=229898

 

[mike827]

Can I get a hottub?!

 

[The Boys]

it would brobably increase yield a lot more then that.

 

[supermanlives]

dont know i dont grow autos

 

[Anti]

Yeah, that.

 

[farmdalefurr]

Autos..........

 

[ellinho]

sweet seeds states in their auto-test grows that 18/6 is the most efficient way for autos.

 

[noteron]

sweet seeds states in their auto-test grows that 18/6 is the most efficient way for autos.

While other autos like Sour 60 are supposed to do well under 24/7

 

[*mr.mike*]

24 hours in my own case seems to increase yield by 3 grams on a 15 inch plant, on average. Much better than 10%.

 

[Botanist]

I go 24/0 on my stuff. they need no down time because the light cycle has nothing to do with the buds.

I have never seen any negative effect from 24/0 for the hole life cycle and only lost growth from other light schedules.

The science is settled.

 

[HerbAddickt]

I saw someone here post that the plants are shorter under 24/0, and yield is better (I think was 5%).

20% more hydro than 20/4 - for 5% yield (is my math right?)

So if you have higher electricity rates during day, you can eliminate 4 hours of expensive hydro (when rates can be 25% higher), and only forsake a total potential of 5% better yield. But you'll get bigger stretch on plants, so if height is at a premium, the shorter heavier plants are better.

My head hurts.

 

[-~Wind Walker~-]

Hmm...Damn it! I used the exponent to the Y instead of to the J subpower delta.

I gotta sart all over again!

-~WW~-