Question for all the experts out there.... Currently my grow consists to two AutoFlower (Northen Lights) and one PhotoPeriod (White Widow) I've noticed that both the Autoflower are 100% female and appear to have started to flower. The photoperiod also appears to be showing gender and is right around the size I'm looking for. Question is, will there be negative effects on the Autoflower if I switch to 12/12 lighting schedule to start budding out the white widow? Your advice would be appreciated.
Live Stoner Chat Question for the experts on light schedule
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If you aren't concerned about yield and the plant is healthy I don't think it matters.
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The answer to your question lies in the amount of light - DLI - (day light integral) you are providing during the 12 hour lights on time. If your DLI is around 30 moles you will not have a lower yield. In fact with autos you may be able to get full yield down to about 25 moles. There is some math involved in this but it is not too complicated. You need to know the output of your lights in micromoles per second over the autos. Since it is not likely you are the only one running the make and model of lights you are using; you should be able to find that information for the height (distance to canopy) you are running. A really good explanation is here along with the formulas you need:
http://pllight.com/demystifying-light-levels-cannabis-grows/
If you are not getting enough moles per day just add another light. @BigSm0 autocob could be just perfect for this. He also may have some good moles needed numbers for autos. I know he has done a lot of work on this.
http://pllight.com/demystifying-light-levels-cannabis-grows/
If you are not getting enough moles per day just add another light. @BigSm0 autocob could be just perfect for this. He also may have some good moles needed numbers for autos. I know he has done a lot of work on this.
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Interesting article for sure. I am experimenting with both spectrum and intensity. Understanding the total amount of moles delivered to each plant would be critical. I wonder if this is a yield thing, or if it would also effect the terpene and resin production??
Interesting stuff, thanks!
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You should definitely have enough light running those two.
yeah looking at the PAR value I'm somewhere around 700 per light at 18inches....so using the math from the article I'll be 60-65 moles per 12 hrs if I understand the math correctly.
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Actually you would have 30.2 moles over 12 hours with 700. 700x60x60x12/1,000,000=30.2
If you are running autos you are running more than 12 hours right?
You guys are making me proud. 
Some would never believe there is actually some math involved in using lights. How the heck can these autos running 10-15 watts per square foot still bang 1.5#’s in a 4x4 when us photo growers are using 3x the amount! Math
Some would never believe there is actually some math involved in using lights. How the heck can these autos running 10-15 watts per square foot still bang 1.5#’s in a 4x4 when us photo growers are using 3x the amount! MathSimilar threads
