My 8hr flowering experiment

torontoke said:

Well folks
I think it’s time for me to move on and turn over a new leaf.
Hopefully this journal has entertained and provided a different perspective then the normal grow log.
It’s been a fun ride and I’m glad that I shared the experience with everyone, even tho I never hit my goal. I shall continue to chip away at it but in the meantime....

May all your harvests be plentiful and dank!
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I was starting to wonder where you went off to..?
May the road rise to meet you.

Don't let a mod quoting 40 year old government sponsored data qwell your sence of exploration.

Rock on.

10/14 here and going nowhere!

@torontoke how you been o'l boy?
anything new in the making?

hillbill said:

10/14 here and going nowhere!

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this is my prefernce as well .. I've gone as low as 9/15 with average results but most of my strains don't like it much lower then that.. I'm going to try 4weeks at 12/12 then knock it down to 10/14 the last 4-6 weeks of flower ..

Interesting idea on using a 9/12 schedule. I just use a mechanical timer so not gonna attempt that now. I guess it would speed up the flowering?

I am using 9 hours and 20 minutes on and 14 hours 40 minutes off. Seems to speed up my flowering by 10 to 20% over 12/12.

torontoke said:

Well folks
I think it’s time for me to move on and turn over a new leaf.
Hopefully this journal has entertained and provided a different perspective then the normal grow log.
It’s been a fun ride and I’m glad that I shared the experience with everyone, even tho I never hit my goal. I shall continue to chip away at it but in the meantime....

May all your harvests be plentiful and dank!
View attachment 4069581

Click to expand...

Pretty helpful grow journal , any plan for new run? Stoked on it

torontoke said:

Ok so im not sure if anyone else had attempted to actually try this new lighting schedule or if anyone read the article.
Anyhow in skunks feb/march issue there was an article on alternative lighting schedules and i was very curious if their is any validity to it and figure the best way to find out is to try it myself.

Basically the article says that a flowering or fruiting plant only needs a 6 hr light schedule so 6/18 is supposed to give you tighter bigger fatter buds in less flowering time than 12:12

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By the time i got to this thread it got quite long. In the end did you find the 6/18 better during flower? thanks!

@torontoke thanks for the diary bro, its been an education cheers!

lukio said:

@torontoke thanks for the diary bro, its been an education cheers!

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lolol

Happy to have been the guinea pig while trying to help the community.
Hopefully at least one person besides myself was entertained.

Felt like this journal needed a better write up to end it.
Reduced light cycle flowering isnt for everyone and anyone focused on the negatives or potential loses we’re not the intended audience. In fact it was a grow journal for myself that I thought others might be interested in following along with.
There’s been much back n forth and thankfully at least one positive comment for every negative post or pm I received.

I appreciate every single person that chimed in on this journal and thank you all for taking the time.

I have since stopped using the glr to veg but still use only 8/16 to flower. Started a new journal awhile back
https://www.rollitup.org/t/shootin-fer-mids-if-im-lucky.957103/

I would rather not get into light cycle talk in my new journal and wish the best of luck to everyone in their gardens going forward.

Hopefully you all harvest twice as much as you were expecting

Tt

Thanks for doing the reduced hour schedule and I am 10/14 here for a year in a very firm way.

Anyone tried 8/8/8?

Seed & Veg -> run FR @ EOD ~50%, then switch to 100% FR @ EOD for bloom. Or something similar?

Intiatially I thought as long as you break down Pfr into Pr by morning (utilizing 725nm) that you could induce bloom regardless the duration of the night. I've found out that it's not the only factor, though still one of the main contributors. It seems the plant has a "circadian clock" that is adjusted by the environment which includes spectrum but also additionally, temp, nutrients, ect. This "clock" builds up instructions over time and only makes minute changes per day. I'm wondering if you started out 8/8/8 from seed that you'd program this clock to accept 8hr days instead of 12hr days.

Typically the Pfr requires an extended period of darkness to revert back into Pr, but if we can blast enough 725nm to mimic the longer night duration generally required to break down the daily accumulated Pfr, as well as increase intensity of lights to match the 12hr DLI in an 8hr period, then in theory you should be able to finish in 1/3 less time.

I'm curious if we can trick the plant when it comes to the day/night length/cycle by adjusting EOD FR intensity while keeping lights consistently timed at 8hr intervals. Adjust Pfr/Pr ratios to signal seasonal changes while initiating growth under an 8hr day to program "circadian clock" to accept a shorter time duration.

Every 2 human days the plant would undergo 3 plant days, the average dark period and light period would remain at 12/12 but light intensity would increase by 1/3. Maybe a more gradual shift from seed to bloom rather than 50% - 100%. Maybe something like ...
Wk 1 - 50%
Wk 2 - 45%
Wk 3 - 40%
Wk 4 - 40%
Wk 5 - 60%
Wk 6 - 80%
Wk 7 - 80%
Wk 8 - 100%
Wk 9 - 100%
Wk 10 - 100%
Wk 11 - 100%
Wk 12 - 100%
Wk 13 - 100%

Easier to understand:
Photoperiodism | BioNinja
The switch to flowering is a response to the length of light and dark periods in many plants AND Methods used to induce short-day plants to flower out of season
ib.bioninja.com.au



Brain surgery (lol):
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4414745/

In the interest of accuracy; as a result of power interruptions and timer mishap my lights on is 10 1/2 on 13 1/2 off with continued solid results.

Nice to see this old thread get a bump.
I’ve been taking a break from forums and getting set for the next stage of my life but felt compelled to post and chime in
I’m still very much alive and still using 8/16

Space monkey d50


Ss4 f2 day 55 had a rough start but so sweet smelling dank Sinatra x bbhp

Hoping to be back to posting again regularly soon and I wish everyone the best of luck in life and your garden

torontoke said:

Nice to see this old thread get a bump.
I’ve been taking a break from forums and getting set for the next stage of my life but felt compelled to post and chime in
I’m still very much alive and still using 8/16

Space monkey d50
View attachment 4427328

Ss4 f2 day 55 had a rough start but so sweet smelling View attachment 4427330 dank Sinatra x bbhpView attachment 4427329

View attachment 4427331Hoping to be back to posting again regularly soon and I wish everyone the best of luck in life and your garden

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At least you didn't come back empty handed!!! Or should I say,empty tented????

Wow What a read
Super interesting stuff thanks for posting all this Going to give this a try myself once I get all set up

My lights just came on for their 10.5 hour schedule! I think I am 2 1/2 years with this.

hillbill said:

My lights just came on for their 10.5 hour schedule! I think I am 2 1/2 years with this.

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And you have no problems? Is the person that started this journal still doing it ?

This thread made me do it.
No troubles.
Slight power savings.
Bud is identical for strains I have grown both 12/12 as well as10.5/13.5.
This person has no journal.