I was planing on 10 hour light 14 dark what you reckon

use 12 hours for the most time, say flowering time is 64 days.. last week first four days 11 hours and last three days 10 hours... the plants should think that their life is coming to an end soon so they will produce bigger buds due to the pfr hormone increase thats my guess, i will try it but got like 30 days to go before i can tell you but on the other hand i got nothing to compare to .. but this is my logic.

Id like to know the results of this. your logic sounds right on to me

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When you reduce your light time you'll reduce your yield and potency. You can compensate with CO2 and/or extra light + UVb light.

Here's a thread on running your grow on an 18 hour day with only 6 hours of light, 12 hours dark. The theory is that the more dark periods the quicker the harvest, but less yield.

In one week with a normal 12/12 cycle a plant has 7 dark periods to produce THC, with an 18 hour day the plants have 9 dark periods in 7 days.

Reducing the light time each day (week) also sounds like it will speed ripening but it will also reduce yield and potency, so compensate.
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Growing with an 18 hour day/night cycle

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This is from personal experience....the only thing that will happen is your plant will finish budding quicker...you wont get as much as you usual do and the buds wont be as dense...high will be the same

i am short on space and a few parts of plants finished early..i cut them in half basically and let the other half finish...the other halfs are all cloudy trichs and im waitin for at most 50/50 cloudy/amber. i have a growtent and wanted to hang them in there so i turned the lights off for the remaining time...its been 3 days of no light and hopefully they will be done in another 3 or 4 days....any problems from doing this? doing a dwc with 2 ww feminized

"its been 3 days of no light and hopefully they will be done in another 3 or 4 days....any problems from doing this?"

They'll produce a lot of trichnomes with very little THC in them. I don't know what other effects constant dark will have.

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"I will have my money for my fine and a joint in the other hand."

- Jean Chretien, Prime Minister of Canada, on marijuana decriminalization

I'm currently increasing my light time from 12/12 to 13/11 from Week 3-5 of flowering. Adds an extra hour of light which is supposed to increase size and yield without stressing the plant. I'll bring back the light schedule to 12/12 after week 5 and finish flowering on that schedule.

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Whenever I meet someone who doesn't smoke pot it's a bitter sweet feeling cause I know we can never truly be friends. But it's sooo sweet cause that means more weed for me!

I've read that you can knock about 2hrs off the required time to induce a flowering response by irradiating with fairly intense far red (>700nm) light..
Incandescents produce more far-red than red, so you could probably push the equilibrium and speed up the dark cycle requirements by illuminating with incandescents for a few minutes just prior to lights off..
Or, for the ultra-rich, get something like this, but bigger:
http://www.asahi-spectra.com/optical...sp?key=ZBPA730
And use it to filter incandescent light through the entire day (light and dark) when you want the plants to flower.. That could reduce the dark requirement tremendously, but the filter would cost thousands..
Moonlight carries a large proportion of far-red radiation, and its been found that moonlight can enhance flowering response of short-day plants..

I always did 12/12 for Flowering, but the last grow, I changed from 12/12 to 14/10, 14 hours of LIGHT, to increase my yield.

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