difference between 24/7 18/6 light period (pics)

kms420

kms420

Member
before i harvest i always give my ladys two to three days of darkness, since the resin production
is highest when the lights are out i give em some extra darkness then harvest, always helps to add just a lil
more resin or trichs for me. hope this helps
 
N

Nocturn3

Well-Known Member
I believe that 20/4 is the optimum veg timing schedule, with regards to end yield. Here is post written by OT1 on the subject:

We did a lot of experiments with light times a few years back using known sat and sat dom clone lines.

With Vegging ie under hid lights.

20/4 produced the most sturdy growth and the most bulk. Best final yield, taken as 100%.
22/2 Less of both. yield 88%
18/6 Studier than 22/2 but slightly less bulk. yield 87%
24/0 Much lighter in all aspects than 18/6. Yield 79%
16/8 The weediest plants. yield 67%

Plants vegged to final pots under fluorescents at 20w per sq ft on 18/6 yield 49%

Have not tried 36 hrs dark but did try 48 hrs from 18/6 veg. The final yield was down between 15 and 20% by var the pure sats the biggest loss in final weight and caused the odd herm, [sats] it did reduce the flowering time by 5 to 8 days.

For the mum lines we have 20/4 to 12/12 gives the best crop weight and bud quality, really thats all I’m interested in.
Click to expand...
Taken from here.
 
sophanox

sophanox

Well-Known Member
Nocturn3 said:
I believe that 20/4 is the optimum veg timing schedule, with regards to end yield. Here is post written by OT1 on the subject:


Taken from here.
Click to expand...
Great post mate, I had no idea someone had actually ran conclusive tests on this area, thought it was all personal preference!
 
MrFishy

MrFishy

Well-Known Member
Interesting. This could be exactly why my super healthy 24 on veg plants rarely have enough roots to even keep them upright.
Yetta hey . . . it'll be 20/4 next go 'round.
Thanks for the comparison data!
 
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