My 8hr flowering experiment

[torontoke]

These were clones of plants that are being grown out now.
Half were vegged a month the other half two weeks.
But nothing from seed.
I think i will get a good idea for the differences when its all said and done.
As long as it flowers at all i will consider it successful enough to play around with the light maybe try 8. And see if theres a significant increase etc.

 

[GrowUrOwnDank]

I have to admit. I use different combinations. Like using a CFL and an LED on a 12/12 during late flower. The unproven theory, that the different types of light may contain a spectrum the other may not have the plant can use. Recently purchased an 150 HPS, so. I am also always thinking about ways to save $$$ on electricity. Perhaps run 2 timers and put the HPS on a 2 on 2 off for a 12 hour period and using the LED while the HPS is off during the 12 hour period? Use the HPS alone for 2 on 2 off, then use the LED and CFL to fill in? Combinations are endless though.

If you think about it, if the plant can only absorb and process so much light during any given period? Why not use a 1 hour on and 1 hour off cycle during a 12 hour period?

Who knows right?

Good luck OP. If the results are flat or even barely below par in terms of yield, that's a win. Some may choose to save a few dollars in electricity unless the the outcome truly suffers. What if the results are positive? WIN WIN.

Subbed for the ride.

 

[Chester da Horse]

I am also always thinking about ways to save $$$ on electricity. Perhaps run 2 timers and put the HPS on a 2 on 2 off for a 12 hour period ...

but won't you toast your HID bulb switching it on and off that much? Cost/benefit might bite you in the arse there...

 

[GrowUrOwnDank]

but won't you toast your HID bulb switching it on and off that much? Cost/benefit might bite you in the arse there...

To tell the truth. I honestly don't know. If it were to significantly deteriorate the life span of the bulb, without any increase in yield I doubt it would be worth it. Anyway. Just throwing around fleeting thoughts here.

Good point.

 

[k_elliott99]

Subscribed! Lets get updated pics!

 

[Mr.Goodtimes]

I'm sub' in, seems like an interesting concept. Thanks for logging this torontoke.

More pics would be nice

 

[torontoke]

Sorry guys
Had planned on posting some updated pics but had a pretty serious medical emergency and wound up in the hospital
I will get some pics up as soon as i can.
Thanks for the interest

 

[Ace Yonder]

I hope all goes well and healing happens quickly! Best wishes!

 

[k_elliott99]

Best wishes buddy! Get well soon!

 

[WeedFreak78]

This will be OK for anecdotal evidence, but without a control, flowered under 12/12 at the same time, using the same nutes, etc..it's a highly uncontrolled experiment......

These were clones of plants that are being grown out now.
Half were vegged a month the other half two weeks.
But nothing from seed.
I think i will get a good idea for the differences when its all said and done.
As long as it flowers at all i will consider it successful enough to play around with the light maybe try 8. And see if theres a significant increase etc.

Because of this^..plants were vegged at different rates. Didn't you say you popped beans for this?

The second part of this experiment is the chemdog plants from ghs.
Now trust me no one hates the ghs douchebags personalities more than me but these seeds were a bday gift so i figured why not run em and see.
I popped 3 and all three are vibrant healthy and stink already so im optimistic

I've been looking into a 6/6/6/6/ flower cycle, only because it would be an easier way to regulate temps in my area, but finding any accurate testing as to whether it's a valid theory is isn't easy.

 

[mainliner]

subadubdubed

 

[bryleetch]

This will be OK for anecdotal evidence, but without a control, flowered under 12/12 at the same time, using the same nutes, etc..it's a highly uncontrolled experiment......



Because of this^..plants were vegged at different rates. Didn't you say you popped beans for this?



I've been looking into a 6/6/6/6/ flower cycle, only because it would be an easier way to regulate temps in my area, but finding any accurate testing as to whether it's a valid theory is isn't easy.

Then test it yourself... thats what torontoke is doing... doesn't need to be an experiment following scientific method to the T when your just posting the results on a forum, not an academic journal.

I'm doubtful that 6/6/6/6 would work as I doubt 6 hours would be enough for the Pfr: Pr levels to reach the flowering threshold. Although your giving them the same ratio of light as 12/12, cannabis is a "short day plant" but more accurately it should be called a "long night" plant because the length of the dark period, not the light period, determines if a plant flowers or vegs. The science behind that is with the phytochromes, Pfr and Pr. Pr converts to the active form Pfr in the presence of red light (almost immediately). Pfr converts to Pr in the presence of far redlight and darkness (much more gradual). So with the 6/6/6/6 the plants would get about halfway to reach that threshold, lights would come on and revert everything back to Pfr, then lights off again for 6 hours just to end up where you started. Google will give you a better idea on the whole phytochrome thing than me but thought I'd help you out with your quest for a valid theory on this

 

[torontoke]

This will be OK for anecdotal evidence, but without a control, flowered under 12/12 at the same time, using the same nutes, etc..it's a highly uncontrolled experiment......



Because of this^..plants were vegged at different rates. Didn't you say you popped beans for this?



I've been looking into a 6/6/6/6/ flower cycle, only because it would be an easier way to regulate temps in my area, but finding any accurate testing as to whether it's a valid theory is isn't easy.

The entire point of the experiment is to find out if the plants will flower using only 6 hrs of light.
Its wont matter if they were seeds or clones or how big they are.
I only need to know if they will flower

 

[WeedFreak78]

Then test it yourself... thats what torontoke is doing... doesn't need to be an experiment following scientific method to the T when your just posting the results on a forum, not an academic journal.

I'm doubtful that 6/6/6/6 would work as I doubt 6 hours would be enough for the Pfr: Pr levels to reach the flowering threshold. Although your giving them the same ratio of light as 12/12, cannabis is a "short day plant" but more accurately it should be called a "long night" plant because the length of the dark period, not the light period, determines if a plant flowers or vegs. The science behind that is with the phytochromes, Pfr and Pr. Pr converts to the active form Pfr in the presence of red light (almost immediately). Pfr converts to Pr in the presence of far redlight and darkness (much more gradual). So with the 6/6/6/6 the plants would get about halfway to reach that threshold, lights would come on and revert everything back to Pfr, then lights off again for 6 hours just to end up where you started. Google will give you a better idea on the whole phytochrome thing than me but thought I'd help you out with your quest for a valid theory on this

, I recently had a conversation with someone about light leaks in a flowering room, and was explaining to them, not quiet as technically..lol, about this process of light destroying the flowering trigger.. I'm a little annoyed now it didn't click when I started looking into alternate light cycles the other day. Which is probably why, as I said..."finding any accurate testing as to whether it's a valid theory is isn't easy."

 

[bryleetch]

Maybe I'll try it out just so there's some tangible evidence because I see people considering funky light schedules like that pretty often but never someone going through with it... I've got a seedling and some CFLs I can spare lol

 

[torontoke]

Unfortunately i am unable to take pics today but i will get some pics up in the next few days.
All the plants are definately flowering and it appears the light cycle is working.
Not sure if the plants are further along than if they were under 12/12 but they do look like they are in second week of flower regardless of schedule.
Im begining to become optimistic about this.

 

[2004play]

Sounds like it's going good, look forward to seeing the pics when your up to it

 

[k_elliott99]

For sure get well and cant wait to see updated pics!

 

[Dr. Who]

The idea for this whole schmear came from a paper from 1913 in France from a man named Julien Tournois....He was growing Hops and Hemp "underglass" (old term for greenhouse growing) He found that they would "flower most precociously in winter". He observed that they would flower most rapidly when allowed only 6 hours of daylight.

Further intel
https://books.google.com/books?id=wh9sW9QII6kC&pg=PA131&lpg=PA131&dq=Julien+Tournois&source=bl&ots=CVDfEmC5DZ&sig=-lnx1NhB-Puu5zHT4rqocBVjqy8&hl=en&sa=X&ei=5V8hVe2PN4SLsAXfq4CADw&ved=0CDoQ6AEwCA#v=onepage&q=Julien Tournois&f=false
and
https://books.google.com/books?id=c25eErZbHr4C&pg=PA182&lpg=PA182&dq=Julien+Tournois&source=bl&ots=YRtz8wMTYb&sig=8atR4ux-mp3S57Z_zTJRDaveoaA&hl=en&sa=X&ei=5V8hVe2PN4SLsAXfq4CADw&ved=0CD0Q6AEwCQ#v=onepage&q=Julien Tournois&f=false

Google Julien Tournois and you will eventually find all sorts of views on this idea as it stands in regard to basic plant growth to C3 plant function manipulation....

Do NOT use logic to explain what you believe to be fact on this topic......

The OP is making an acceptable experiment to discover the useable information it can supply.....I am about to do a commercial size run in a side by side test to determine the commercial viability of this theory in actual application.....I will not be starting this phase for another 8 weeks.....I will cover the experiment here also.

Till that time. I AM closely following this thread!!!

WELL DONE so far! @torontoke

Doc

 

[k_elliott99]

The idea for this whole schmear came from a paper from 1913 in France from a man named Julien Tournois....He was growing Hops and Hemp "underglass" (old term for greenhouse growing) He found that they would "flower most precociously in winter". He observed that they would flower most rapidly when allowed only 6 hours of daylight.

Further intel
https://books.google.com/books?id=wh9sW9QII6kC&pg=PA131&lpg=PA131&dq=Julien Tournois&source=bl&ots=CVDfEmC5DZ&sig=-lnx1NhB-Puu5zHT4rqocBVjqy8&hl=en&sa=X&ei=5V8hVe2PN4SLsAXfq4CADw&ved=0CDoQ6AEwCA#v=onepage&q=Julien Tournois&f=false
and
https://books.google.com/books?id=c25eErZbHr4C&pg=PA182&lpg=PA182&dq=Julien Tournois&source=bl&ots=YRtz8wMTYb&sig=8atR4ux-mp3S57Z_zTJRDaveoaA&hl=en&sa=X&ei=5V8hVe2PN4SLsAXfq4CADw&ved=0CD0Q6AEwCQ#v=onepage&q=Julien Tournois&f=false

Google Julien Tournois and you will eventually find all sorts of views on this idea as it stands in regard to basic plant growth to C3 plant function manipulation....

Do NOT use logic to explain what you believe to be fact on this topic......

The OP is making an acceptable experiment to discover the useable information it can supply.....I am about to do a commercial size run in a side by side test to determine the commercial viability of this theory in actual application.....I will not be starting this phase for another 8 weeks.....I will cover the experiment here also.

Till that time. I AM closely following this thread!!!

WELL DONE so far! @torontoke

Doc

Be sure to update when u start the journal