[FONT=verdana,geneva,arial]Vegetative growth is the second stage in the plants life following germination and before the onset of flowering typically about 6 weeks long. During the veg stage the plant is growing into sexual maturity and will be photosynthesising as much as possible to achieve maximum growth prior to budding. During this time the plants need to have light a minimum of 18 hours per day. It is also a common practice to leave the light source on 24 hours per day during the veg cycle and accelerate growth. There have been no controlled recordings of increased hermaphroditism with the light on all the time. Most growers use the full 24/0 cycle.
[FONT=verdana,geneva,arial]18/6 or 24/0?[/FONT]
[FONT=verdana,geneva,arial] Those numbers refer to the amount of light and dark that the plant receives (18 hours of light / 6 hours of darkness). Anything above 14 hours of light per day will keep the plant in vegetative mode-- growing leaves and not buds. Flowering (bud development) starts occuring when you reduce the cycle to 12/12. [/FONT]
[FONT=verdana,geneva,arial] [/FONT]
[FONT=verdana,geneva,arial] [FONT=verdana,geneva,arial]ADVANTAGES OF 18/6[/FONT][/FONT]
[FONT=verdana,geneva,arial] [/FONT]
[FONT=verdana,geneva,arial][FONT=verdana,geneva,arial] - Reduced electricity costs. Lowering the cycle will save money especially if you use HID lights such as metal halide to veg.
- Allows the equipment and room to cool down. Some growers in hot climates time those 6 hours of darkness to happen during the hottest part of the day providing some temperature relief in the grow room.
sexing
[/FONT][/FONT][FONT=verdana,geneva,arial]After the flowering cycle has been initiated and the dark period increased to 12 hrs/day, the plants will start to show their sex. This can be as soon as a day or two or up to a week or more. The females will be easily recognizable by their characteristic "white hairs" that will start to protrude from the internodes of the growing tops. The males on the other hand will start to produce small sacs that will later carry the pollen. At the very early stages of sexing both males and females will produce similar shaped sacs so wait to see if any white hairs start to appear from the sacs before final sexing.
[/FONT][FONT=verdana,geneva,arial][FONT=verdana,geneva,arial]
[/FONT][/FONT]
[/FONT]in short
you veg first there is NO sex in veg growth the plant is still sexually immature and has not reached a sex eithe rmale or female, it is only once you push it into 12/12 it creates the thought of summer closing and to produce a sex , so that it can do its plant duties IE: pollination or flowering for harvest
how many hows of sunlight do you get a day?