18/6 vs 24/0 search help

GI-DRO said:

sup

i cant assist you with the search, but i can offer some help with choosing 18/6 vs 24

go with 18/6 heres why:

all living things need rest/sleep
law of diminishing returns applies after 18hrs


i think the former is most pertinent

peace

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Indica Sativa said:

Explain how the law of diminishing returns would apply after 18 hours... especially with a plant that can only grow with the lights on? (photosynthesis...) 24/0... thats 6 more hours of growth potential per day, so to speak...

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GorillaGrower said:

and 6 more hours of electricity that doesn't give you near the returns that it did in the first 18 hrs .. thats diminishing returns on your electric bill= enviroment + wallet

then add in benefits of 18 or 20 hr. and its not much of a decision

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Banjoboy said:

I've been serching for 40 min. and haven't ound much.
Anyone compared 24 On to 18/6?
What key words should I use 18/6 didn't work vary well
helpme
BB

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bounty29 said:

I used 24/0 for the first and second grows, but then I saw someone that did a pretty good comparison of veg times. They used all the same clone, and did some with 24/0, some with 20/4, some with 18/6, and maybe one other timing. The ones that vegged with 20/4 yielded the most, so that's what I use. The only difference it is to me is I have to plug the timer in for veg too, not too big of a deal.

Sorry I don't have that comparison, I think it was on another forum somewhere and I have no idea where to start looking. If anyone else has seen it maybe they can post it.

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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.

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