phoenix no offense but i don't know who the fuck you are as you don't know who the fuck i am. but i think we can both agree we know who the fuck these guys are and these guys know their shit. its like they are an impartial judge in the matter.
spurr, you've made your point already, so now it's up to the viewers to agree or disaggree. Why are you so bent that some dont see things your way?
No need to get annoyed spurr, because once many growers get to a higher level of experience, then they will understand the point you are making. I've not read all your posts, but I understand the point your trying to make. Just throw your experience out there and let the people learn for themselves.
An educated person can tell science from bullshit. Good info guys.
I agree, enough talk. There is no need to run side by sides because the jury is already in: plants like cananbis (C3) do better, and grow faster, with a dark cycle assuming enough DLI is provided in the day.
Also, side by sides without controlling all major factors that affect growth is a waste of time and proves nothing. To do a side by side that shows anything worthwhile you need to control and measure PPFD, PPFD-DLI, soil-water status (i.e. "water tension"), VPD, ADT, C02, etc., etc.
I am working on getting a very large grant this coming year, if I secure said grant I am buying a butt load of analytical plant physiology tools (worth around $50k+) to carry out proper scientifically sound tests/experiments/studies on cannabis to study various hypotheses and to re-prove already proven scientific theories (that isn't the same as a laypersons definition of "theory"); I plant t about C3 plants as they relate to cannabis. Stay tuned for studies that have never been done before on cannabis, and some that have been done, e.g. ideal PPFD, etc.
name one mother fucker i been growing since 94.
and you're telling me two tents with the same strains, same lights, same feeding schedule, in the same fucking room have too many variables to be of any use when comparing light cycles during veg; really?
i need 50K of lab equipment to see if 24/0 and 18/6 have differences in rate of growth; plant vigor; root mass; etc??
So if anyone dare disagrees with Mr. "I'm no scientist but I'm smarter than any doctor I meet" they're a troll, eh? It's too much for my simpleton mind to comprehend? That's kind of ironic, because I actually have an advanced degree (MSc, admittedly not botany or a biological science, but an advanced degree nonetheless) whereas he does not........
Here you go, Einstein:
https://www.icmag.com/ic/showthread.php?t=188495
Here's another nice one:
https://www.icmag.com/ic/showthread.php?t=140981
"I am thinking about going to 18/6 or 20/4 and was wondering if having cloning lights, daylight or light leaks in the same room during to lights out time will stress the plants? Basically, does it have to be completely dark like in flower?"
What, exactly, have you supposedly been growing since 1994?
Simon
You are correct, me being in this thread is nothing more than wasting my time trying to help people who don't know they need help, so I'll bow out - again, have a very nice day and happy growing.
Bob, I did not think I could meet a bigger troll than Japan, yet somehow you manage to take the cake. You talk out of your ass and whenever Spurr posts anything beyond your capability to understand, you become aggressive and combatant.
Please feel free to take your crap to a newbie thread where they dont know any better. Maybe you will make some friends there.
18/6 is great if you need to avoid the heat of the day or high grow room traffic. No other advantage. I like to harvest in less time so I veg without a dark cycle.
I already proved beyond reproach that C3 plants (not "class III" ) do better with a dark cycle. If you won't want to take the time to read my refs, or find your own refs, then that's your problem, not mine.
It's not what I believe, it's a fact assuming enough DLI is provided in the day, to provide enough "net rate of photosynthesis" and Co2 fixation and carbohydrate assimilate. This goes back to what I wrote about low light levels of DLI, etc.
Increase in veg height means you don't have to veg as long. Glad I could clear that up for ya. It also means you don't have to run your lights as many days.
Ed Rosenthal claims you won't save a dime on your power bill using a dark cycle. If you have to veg 33% longer to get the same growth, it will be a wash, except you lost a few days.
You may think you know more then Ed or the guy who wrote The Cannabis Grow Bible, but I am not convinced you do.
I used to veg (from a rooted clone) 14 days, to get a harvest height of 4.5'. Now I am able to get the same size plant but only veg 10 days.
If grow journals will help you, I can dig a few up for ya.
Day One:
Five days later. Things seem normal:
It's been ten days. She is all set for flowering. Switched bulbs and nutrients then changed the program on my timer.
From an old grow journal, I can post up the whole thing if you like?
I do the same plant year after year in the same room. A small change in light cycle made a big enough difference for me to notice. It changed my mind. I grew for years using a dark cycle, not any more.
Need more details?