they are right, I have tryed both 24 and 18/6 and those 6 hrs make root groth. In the long run will make bigger better (healthy) plants!
Peace Mr.growman
Peace, Love, and Lots Of Bud!
Someone here on icmag posted the results of a study that was done regarding this. They found that 20/4 resulted in the healthiest, most vigorous plants in a side-by-side comparison. This study went all the way through to final yield. So, something to think about.
oldtimer1 said:We did a lot of experiments with light times a few years back using known sat and sat dom clone lines.
With Vegging ie under hid lights.
20/4 produced the most sturdy growth and the most bulk. Best final yield, taken as 100%.
22/2 Less of both. yield 88%
18/6 Studier than 22/2 but slightly less bulk. yield 87%
24/0 Much lighter in all aspects than 18/6. Yield 79%
16/8 The weediest plants. yield 67%
snip
For the mum lines we have 20/4 to 12/12 gives the best crop weight and bud quality, really thats all I’m interested in.