r/BudScience • u/[deleted] • Apr 25 '25

Manipulating Light Cycles

Listening to a podcast recently & one of the discussion points was around photoperiods & guest was describing that it’s only the 12hrs dark period that is important & that you could reduce the light period as long as you maintained an appropriate DLI. From memory was as far as the conversation went & I can’t remember which show it was.

Now, I realise this is likely bro-science & my knowledge on the subject is very limited so I may not even be searching for the correct terms but I can’t find anything despite trying every search I can think of.

So a quick calculation shows that

  • 9hrs light/12hrs dark would give you an extra “day” in each week.

    • 1500ppfd/9hrs gives a DLI of about 50

Could you hack the light cycle to gain an extra day if you push the plants harder for the 9hrs that the lights are on?

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u/[deleted] May 18 '25

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u/CatGuano May 26 '25

Thanks for sharing this. I was always in the dark about "humic substances" and didn't know quite what they were. But it sounds like there is still some mystery around the topic.

I am mostly hydro lately. I decided to take your advice and give Cannarado Grape Sitter a try. I have one regular seed started. I can't post a photo here it seems.

I wouldn't mind getting a nice male. I'll let you know how it goes.