24 hours of light

So I was wondering why I hear more people using 18/6 for veg instead of 24 hours ? Why would you only want to use 18 hours when you could be growing faster with 24?

Also my babies started flowering unexpectedly, I have no idea why. But I switched from 18/6 to 24. Im assuming that It was just a mix up and I'm not worried about it.

It would be great if you guys could give me some feedback on this.

KameronG said:

So I was wondering why I hear more people using 18/6 for veg instead of 24 hours ? Why would you only want to use 18 hours when you could be growing faster with 24?

Also my babies started flowering unexpectedly, I have no idea why. But I switched from 18/6 to 24. Im assuming that It was just a mix up and I'm not worried about it.

It would be great if you guys could give me some feedback on this.

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Im preety sure the reason people say 18/6 is because that is the most beneficial amount of light before you start getting diminishing returns (if you kno what i mean) ,like you arent really getting much from the 24/0 that you dont get out of the 18/6 idk though thats just my guess haha .. the only reason i 24veg is because i like the extra heat in my box cuz its winter. In summer ill be goin 18/6 to save on electricity and keep my temps down (hey those 6 hours add up $$ over time specially if you're using a high watt lamp)

on your flowering problem , it may just be preflowers showing...thats normal plants will eventually show you their sex after so many weeks (3-4 weeks of veg but depends) Buttt you can have an auto flowering strain (i dont know much about these or how they work...)

If your dealing with a plant that genetically is big and grows fast 24 hrs on keeps her from taking off on you..she still grows...but not like if she had 6 hrs of sleep a night.....the other reason being if your veg area is cold like mine (30-40 Degrees through the night) then I cant afford to turn em off...being that they really dont like those temps...they dont thrive in that range...

diminishing returns, as in hurting your plants? Yeah it's winter here too and it got down in the 30s when i didnt have my heater.

I don't think it's an autoflowering plant. I had an outdoor grow last year and it didn't start flowering until there were much lower hours of light.

Erb
Able To Roll A Joint
Able to roll a joint

24 hours vs 18 for veg
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Most green plants are classified as either C3 or C4 which represents how carbon(C) is used during photosynthesis.

C4 plants temporarily store carbon dioxide(CO2) over the dark period to use for photosynthesis during the day. C4 plants slow down photosynthesis once the stored CO2 is used up and they need to gather it from the air. Which is why trees slow down photosynthesis in the afternoon even though the sun is still bright. This does NOT apply to cannabis.

C3 plants(cannabis/veggies) gather CO2 only during the light period when they are photosynthesizing. During the dark period these plants only use oxygen for their metabolic life processes. They don't uptake CO2, nor do they use it. As soon and as long as the light is on, C3 plants gather and use CO2 for photosynthesis.

C3 plants also have the ability to use higher concentrations of CO2 than what is found in the air. If the light is bright enough and the plants have sufficient nutes, their growth rate will accelerate from it(2000ppm vs. 400ppm of CO2), which increases yield. They can do this continuously, wihtout a dark period throughout the vegetative stage.

The dark reaction is a process of photosynthesis that takes place in both darkness and light. It uses ATP and NADPH molecules that hold energy absorbed from light to break apart CO2 into it's base components. Because it's called a dark reaction and can occur in the dark, some people(Jorge) have said darkness is needed for this to occur. This Is Not So.

Again people get anthropomorphic with their plant needs. People need rest, so plants must too. This is false as well. Light means growth. Scientifically. Although 18/6 will shock your plants less when you switch to 12/12, it's a personal choice whether you would rather sacrifice a little growth for a quicker adjustment or less photo confusion. If you want to save money or energy that's a personal choice too. Do what you need to do to make your growing scenario work.

KameronG said:

diminishing returns, as in hurting your plants? Yeah it's winter here too and it got down in the 30s when i didnt have my heater.

I don't think it's an autoflowering plant. I had an outdoor grow last year and it didn't start flowering until there were much lower hours of light.

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oh no way will it hurt them i just ment diminishing as in bud growth wont be affected much by letting them on 24 hours but thats my opinion i dont know for a fact i havent personally done this enough to test etc dont quote or make any decisions based on my opinions without seeking other advice