Results 1 to 10 of 12
Threaded View
-
05-02-2009, 04:38 PM #9Senior Member
Vegging light.. 24/0, 18/6 or 16/8?
"Does marijuana require a dark period during the vegetative growth stage? I recently read a grow book that advocated an 18-6 light cycle during the early growth stages."
PSD 420,
Internet
One way in which plants are categorized is by the way they gather and handle carbon dioxide. Cannabis is a C3 plant. It uses the CO2 it gathers during the light period, when it is photosynthesizing. Plants designated C4 also gather CO2 during the dark period for use during the light period. Many C3 plants, including cannabis, do not need a rest period. They continue to photosynthesize as long as they are receiving light.
The plant's photosynthetic rate determines its growth rate because the sugars are used by the plant to build tissue and for energy. Cannabis under continuous light will grow 33% faster than the same plants on an 18-6 light regime."
That being said, I have been using 24-0 and I like it a lot. However, I will be turning off my lights for a couple hours a day from now on. This is because the heat build up at around 2-4pm isnt worth it to leave the lights on.
Similar Threads
-
Best light for vegging?
By Smkngood420 in forum Basic GrowingReplies: 1Last Post: 02-15-2011, 02:50 AM -
How much light for Vegging and Mothers?
By McToker in forum Indoor LightingReplies: 4Last Post: 02-04-2010, 05:08 AM -
HPS LIGHT FOR VEGGING????
By smokinbuds21 in forum Indoor GrowingReplies: 74Last Post: 09-01-2007, 06:40 AM -
Flowering + vegging under one light?
By Swizzy89304 in forum Indoor GrowingReplies: 3Last Post: 03-01-2006, 09:05 PM -
More Light Questions 4 Flowering & Vegging
By Classicalboy57 in forum Indoor GrowingReplies: 9Last Post: 08-07-2004, 12:49 AM