Increased light schedule late flower for faster finish

[Rocket Soul]

Not from that video… I’m going to have to try and dig it up

There is a study kicking about around this, from what i remember there were differences in how thc rich and cbd rich plants reacted, i think it was posted in the led bud quality thread.

 

[Ca++]

Come to think about it links get deleted, idk but if you're interested I'll dm you the link?

If you pop a space in the sites name, the link won't work, but will be visible. Least, visible enough to copy to another browser window, remove the space, and then visit from that window, not this site directly.

The OGs shown, don't look typical to me. Their 10h@8weeks looks like 12h@6weeks in real life.

Last study I saw, concluded under 13.25h would flower the cultivars they tried. Giving them a slow start, but the same finish time, with more everything. IIRC one was GG.

Veg schedules at the end are ok for 3 days tops. After that the twig content in the center of the buds has increased to the point where the bud is expanding, by gaining air in the middle. However, if you can get them down in 48 hours, then putting the lights on and getting busy, offers next to no risk. More likely a gain, as they are producing right up to the moment of chop.

I don't believe that days increasing in length will be a problem for flowering, if you keep under that critical day length of around 13.25h (which isn't going to be that for all plants). There have been a few reports to substantiate this. However, it has certainly been a common tale told, and entire websites have turned on those (me) suggesting a spring harvest might be possible under glass. So I'm still a bit avoidant. However, many times I have increased the light hours by 30mins, in an attempt to give myself a bit longer. Results impossible to judge.

I will look for it..

 

[PlastikeRubba]

Bruce Bugbee is a fraud, just like most people his age, race, nationality. Just like most federal employees. Just like everyone in the Cannabis world.

Dr. Bugbee had the same dump idea, so i don't think it can be all that dumb In one of his videos about grow myths, he covered the topic of keeping plants in the dark before harvest to increase THC. That would be complete nonsense biologically, as THC is a secondary plant compound that can only be produced with light.

Cannabis keeps track of day length.

Cannabis knows when the lights will come on.

Cannabis depletes it's starches at the very last moment of darkness.

What happens when the light never comes, after months of 12/12?

The plant starts breaking down it's proteins and lipids for carbon, since it has no starch.

Proteins are made of amino acids.

Lipids are made of fatty acids.

Broken down amino acids are one of the main sources of flavors in Cannabis.

Broken down lipids are one of the main sources of flavors and entourage effect in Cannabis.

The most well known Cannabis flavor derived from amino acid degradation is the anti-markovnikov addition responsible for the lightstruck flavor of beer.

The most well known Cannabis flavor derived from fatty acid degradation is the anti-markovnikov addition responsible for the lightstruck flavor of beer.

The lightstruck flavor is very desirable in Cannabis.

The lightstruck flavor in beer requires hydrogen sulfide donated from broken down Cysteine.

The light struck flavor of beer requires 3 methyl 2 buten 1 ol from broken down (6S)-3,5,6-Trihydroxy-2-(3-methylbutanoyl)-4,6-bis(3-methylbut-2-en-1-yl)cyclohexa-2,4-dien-1-one.

The SH residue in Cannabis also comes from Cysteine.

The 3 methyl 2 buten 1 ol donor acid in Cannabis is top secret and copyright protected.

If cysteine prenylation doesn't happen disulfides will be created instead of thiols. Lots of people call this skunk. Sorry it's not skunk if it doesn't smell and taste like skunk.

People should stop settling for being fake poser frauds. American Potheads are like a group of skateboarders who decide kick flips aren't cool anymore. No, you just can't do them. They are still cool. Go smoke your pesticides and pk booster and pretend it's doughy or gassy or whatever, this is adult time here on the forums. Who let all these kids in here?

Seems most pot growers have a Satanic Creationist church goer mindset and do not understand the nature of chemical evolution. God created you by breaking himself down, not by building himself up, you arrogant self absorbed self centered selfish fucks.

And none of this matters because you all keep your plants in the dark after harvest anyway. You think the plant cares whether it's attached to a root in the dark or not?

 

[CocoNut 420]

Here's that yt info I was on about, thank you @Ca++ thats a good idea
ht tps://www.youtube.com/live/WqvsF4ntykk?si=vg3C1FaXP-LOqFwU

 

[Ca++]

Some may of heard me talk of how profound the switch to 12/12 must be. Paper after paper just keeps filling in the gaps for me. The whole Idea I have, is complete, and overwritten a few times, with the same context. It's enough to call it fact. We should really start on longer days, get bloom established, then 12/12. Some plants don't even want the 12/12 reduction at all. A study last year started at 14h. There was more frame building. More bud sites. Sites that showed sooner. More gain than the dli alone explains. Some plants did just bulk at 14h to the end, which had a watering down effect on strength. They needed the 12h for the later half of bloom. To attain the same strength. Another thc strain didn't need the 12h reduction, but didn't mind it. While a cbd strain looked like 14h could be lengthened.
The 14h start delayed the first brown hairs. I also catalogued this myself a few years ago, raising hours to stop a speedy finish.
Another study just use one night length throughout, and found 14h to have a negative effect. Bloom time was extended, as they continued to show more veg signs to the end. They settled on 13h as a single photoperiod for the bloom cycle. Also noting the gains likely come from a better frame build in early bloom.
Another angle on this, is how the plants store things early, for later use. Peeps are mentioning here. Some other plants can be getting over 40% of their carbon out of there roots, late in the season. We have no number for cannabis, but it's going to be lower, but important.
If we just go 12/12 from the start, the plant is just rushed. It misses a stage of prep. Sometimes we want to skip ahead, such as sats with 10h. It may still be better to start a couple of hours longer. Take the stretch, to gain the extra earlier bud sites.
Some mused over the idea of a 14h start, and 10h finish. For an average 12h, leaving power bills uneffected. They still expected a gain, without any extra input.
There is a strong leaning here, towards early bloom being more important than late bloom. Not something to skip, but something to work with.

Feck.. my plants are already getting a strangle hold on my lights. How'm I going to judge this stretch in advance

 

[mr.brunch]

I use 13/11 for 3-4 weeks ( usually 3 weeks for a quick strain) then down to 12, seems to keep conditions nicer to me.
Outside if my plants didn’t start flowering until 12h, they wouldn’t show hairs until the end of September

 

[CocoNut 420]

With 11-13 the 1 hour makes a remarkable difference to the size, height speed into flowering and finishing up time.
I never had plants look like this at 45/46 days with 12-12

My average was 75/80 days and sometimes 100+ days, that's like 2x the crops per season.

I don't think one method is better as such, better can be different things to different people what I've learned is I've an option to have plants bigger/smaller longer or shorter it's not fixed like before.
Next up 10-14hrs to see how that goes?

 

[mr.brunch]

Here is the study… it’s a lot more complicated than I remember…

Moving Away from 12:12; the Effect of Different Photoperiods on Biomass Yield and Cannabinoids in Medicinal Cannabis - PMC

The standard practice to initiate flowering in medicinal cannabis involves reducing the photoperiod from a long-day period to an equal duration cycle of 12 h light (12L)/12 h dark (12D). This method reflects the short-day flowering dependence of ...

pmc.ncbi.nlm.nih.gov

 

[Rocket Soul]

Has anyone got any good recs of how to bring down flower tine of long flowering strains? Is it better to go short hours all the way thru or better to go first 12/12 and then draw down to 10 or even 9?

 

[Rocket Soul]

Here is the study… it’s a lot more complicated than I remember…

Moving Away from 12:12; the Effect of Different Photoperiods on Biomass Yield and Cannabinoids in Medicinal Cannabis - PMC

The standard practice to initiate flowering in medicinal cannabis involves reducing the photoperiod from a long-day period to an equal duration cycle of 12 h light (12L)/12 h dark (12D). This method reflects the short-day flowering dependence of ...

pmc.ncbi.nlm.nih.gov

Evening reading for beer time, thx

 

[Orange's Greenhouse]

Has anyone got any good recs of how to bring down flower tine of long flowering strains? Is it better to go short hours all the way thru or better to go first 12/12 and then draw down to 10 or even 9?

Tbh this is what breeding is for. Not everything is a nail just because you like hammers.

 

[CocoNut 420]

Has anyone got any good recs of how to bring down flower tine of long flowering strains? Is it better to go short hours all the way thru or better to go first 12/12 and then draw down to 10 or even 9?

If that were me I'd veg with 10/12 hrs depending on the height its likely to stretch then change to 10-14 or 11-13 after sexing depending what you're after, it's not going to yeild the same but it's a faster way to test those new phenos!!

 

[Rocket Soul]

Tbh this is what breeding is for. Not everything is a nail just because you like hammers.

I got access to some real short flowering strains but my "golden ticket"- Y griega is always long flowering 11-12 weeks and thats a bit too much. I dont mind pushing a bit more light during daylight hours to compensate. But i know what youre talking about some times it just needs to be long. But i cant get over that "happy smoke" that some of the Kali Mist crosses seem to give so id really like to make some tries once i can set up a space which is only for my own smoke.