12/12 or 14/10 flowering ????

[afrosam]

I watched a video from THC Labs out of Canada, and one of the growers recommended increasing the hours of light up to 16 hours for the last 2 weeks of flowering. Along with a diet of water only for the last 14 days.
Has anyone tried this or known any one who's done it b4
ive saw the same question posted on another site, an some people seem to do it just wondering if anyone else uses this technique and what kind of results they get the guy from THC labs he report's he gets much better yeilds, as his plants see more light
​

 

[ontariogrower]

mmmmh never heard of increaseing the light but yes give only water for the last 2 weeks its called flushing your plants it gets rid of most or all of the ferts and nutes so you dont have a nasty tasting smoke

do you own test take one plant and go with the 16 and let us know if it works

 

[Doalude]

I would stick with the tried and true method of 12/12 myself.

 

[420swed]

How many days are u in flowering ?

 

[afrosam]

mmmmh never heard of increaseing the light but yes give only water for the last 2 weeks its called flushing your plants it gets rid of most or all of the ferts and nutes so you dont have a nasty tasting smoke

do you own test take one plant and go with the 16 and let us know if it works

thanx bro 4 explaining flushing but ive been doing this for around 14-15 yrs lol with over a few hundred under the belt but thanks anyway bro knowlage is power i hear what ur saying, just was intrested if anyone besides this canadian guy has done this the increased light is only in the last 2 wks, i havnt done it my self as 12/12 seems more reliable but this guy grows for bc bud depot so he isnt just an average joe or maybe he is lol thankx all the same 4 tha reply

 

[Properlike]

Hey bro-

Theoretically it makes sense the plant uses the light time to grow and in this case bud....I just decided to do it I am doign 15 hours thereabouts on some Master Kush which I inadvertently threw back to 10 hours to finish early when it hadn't even really begun budding.

Set me back two weeks..so now I am going to increase the light so they cn finish sooner less days to finish.

It makes complete sense....I've heard of people doing a continuous 14/10 through flowering with great effect.

I'lll let you know my results over the next 7 dasy to harvest.

 

[BloodShot420]

i've heard of this... there was a lot of info on it at overgrow... (i'm still sad its gone)

apparently, the theory is that once you start to flower the plant with 12/12, after X weeks of 12/12 if you give it 18/6 or 24/0, it will take the same X weeks to revert back to veg.... so in the last 2 weeks, if you give it the veg lighting schedule you can have no fear that it will go back into veg because its almost done flowering (it would day 6 weeks of veg lights to get it back into veg mode)...

a buddy of mine tried this and flipped it to the veg lighting too early, and he went the last 2 weeks at veg photoperiod, but then decided to let them go a little longer cuz they didnt quite look done... then in the 3rd week they made funny looking leaves pop out of all of the bud, and he got a bunch of bananas...

he might have gotten a little more weight, but it was funny looking bud

 

[adam1982]

on a seed site it rcomend less light for last to weeks even says try with no light for last 2 so be careful they dont start to veg on ye

 

[verysexybob]

i have just experienced this very same problem with my granddaddy kush and blueberry clones. they were left under the hps (600w, 12/12) light by accident (behind the larger plants), and budded to early.
after the harvest this was discovered, and they were placed back under the metal halide (400w, 18/6). after only a week much of the bud weight was lost to the vegetation processes, and those "banana" (quite an accurate observation) leaves begun to sprout. they almost resembled the first vegetative node leaves on a seedling; yet they lacked and ridge definition along the edges.
i have since killed the original plants (not before cloning of course). i believe that mistake will serve as an experiment to see if the light stresses will cause the 3rd generation clones to hermie.
i do not suggest increasing the light cycle at the end of budding based on my personal experiences. however i have found that a 72hr dark cycle immediately before harvest can dramatically increase the cannabinoid resin production within the tricombs. in some cases up to 25%!!!
i wish you the best of luck!

 

[89SoFine]

i do not suggest increasing the light cycle at the end of budding based on my personal experiences. however i have found that a 72hr dark cycle immediately before harvest can dramatically increase the cannabinoid resin production within the tricombs. in some cases up to 25%!!!
i wish you the best of luck!

Hey verysexybob, nice post. quick question: do you water your plants at all during that last 72 hour dark period? Or do you let them just suck all the water that's left up into the buds? Thanks.

 

[verysexybob]

the medium that i use is approximately 20% coarse perlite, 50%-70% organic moisture control soil, and up to 30% cannabis trimming compost (worms are amazing organisms, btw). this meduim will prevent against bacteria growth and makes it easier to flush, however this medium will not hold water for more than 24 hrs, so i am required to water during the 72 hr. dark period.

if you feel comfortable that your medium will retain adequite water, then you may not have to during the dark 72 hr. dark period. this is because hps lights will cause the water to evaporate at an increased rate. no heat/light = higher water retention.

on a side note... have u ever noticed that the grass needs to be cut immediately following any significant rain? i find that the buds work the same way, they will swell and mature faster if you keep to the regular watering cycle.

 

[mikegreenthumb]

Hey verysexybob, nice post. quick question: do you water your plants at all during that last 72 hour dark period? Or do you let them just suck all the water that's left up into the buds? Thanks.

ive let my plants go 14\10 since 4th week im day 40 check my link plants are doing awesome and really packing girth

 

[Uncle Ben]

I watched a video from THC Labs out of Canada, and one of the growers recommended increasing the hours of light up to 16 hours for the last 2 weeks of flowering. Along with a diet of water only for the last 14 days.
Has anyone tried this or known any one who's done it b4
ive saw the same question posted on another site, an some people seem to do it just wondering if anyone else uses this technique and what kind of results they get the guy from THC labs he report's he gets much better yeilds, as his plants see more light
​

He flushes his plants (which induces leaf drop and has no real world value) and then gives them more light? Makes sense to me hehe.

Have him come over here and explain himself in scientific terms, cause and effect.

I know you're just asking, but some people will believe anything anyone says.

 

[monkz]

Nature doesnt increase light for the last 2 weeks of flowering, light decreases gradually... im now on a 10.5/13.5 light schedule.
As for flushing... apart from the fact that im using organics, plants absorb nutrients during their whole life cycle, and starving them of food for the last week or 2 only serves as a stress for the plant... why shouldnt it eat for its last 2 weeks? Dont you eat during your plants final days? lol

 

[mikegreenthumb]

more light = more growth since there only putting energy tword budding at this phase more light = more bud not too scientific but working but the flush part ima have to go wit my boi ben on this if your plants/buds are using these sugars as you replace them they should use them = more budding also natur doesent flush and gorilla weed taste great so that my imput

 

[mikegreenthumb]

some results after two weeks of 14/10

 

[growthspurt]

Bringing this thread back to life with these Flowering whole time 14/10.

I think this is a relevant question and I think more people should try it out.

 

[Uberknot]

Bringing this thread back to life with these Flowering whole time 14/10.

I think this is a relevant question and I think more people should try it out.

Yeah sometimes natures way is not the best way for optimal results.....you get natures results.

It's interesting to see what people have experimented with and shown in some cases to increase Growth/THC/Etc..

Those look good how long till finished?

So no problems with the plant trying to reveg, hermie, etc?....it could be strain dependent as well.

 

[growthspurt]

No problems, I would say slower flowering but larger yield. Every time someone says 1 week its 3 etc. Those are 73 days flowering. I would think another 2-3 weeks. Yes I would say there might be some strains that you might have to go closer to 12/12 to trigger but this method allows you to introduce clones immediately along with running Autos all with never changing lights.

 

[churchhaze]

No problems, I would say slower flowering but larger yield. Every time someone says 1 week its 3 etc. Those are 73 days flowering. I would think another 2-3 weeks. Yes I would say there might be some strains that you might have to go closer to 12/12 to trigger but this method allows you to introduce clones immediately along with running Autos all with never changing lights.

Have you tried using a 5-15minute pulse of 730nm light (far-red) at lights out? A lot of people here use a pulse of far-red immediately after the lights go out and flower 13.5/10.5 to increase yield without slowing down flowering..

When the lights go out, it takes about 2 hours for the majority of photochrome to convert from Pfr to Pr form. A 730nm pulse after lights out converts Pfr to Pr almost instantly, increasing effective night length by about 2 hours.