Lights on for 24 hours?

[619SixFour]

I like to start em out on a 24/7 schedule just to get em started, then i work em down to 18/6. Again, personal preference is what it comes down to imo.

Thats what I am doin, I started them from seed, 24/7 under a FLs for about 3 weeks, I just put them under the MH today and I will use the 18/6 method. I did some research and I heard that it is true that plants need to rest, the question was how much do they really need. It turned out that the optimal time during veg stage was 20/4. Again it really comes down just to your preference.

 

[collectselltrade]

i did my whole veg state in 24/7 with a one a week bulb shut down for 15 min as rec. by manufacturer, with a 400 mh, after almost 2 months went down to 12/12 and its been about 3 or 4 weeks, and this is my first grow so i am not sure cause i have nothing to compare to, and it looks as if i might get a good bud or 2 i will post a pic if requested

 

[Picasso345]

i did my whole veg state in 24/7 with a one a week bulb shut down for 15 min as rec. by manufacturer, with a 400 mh, after almost 2 months went down to 12/12 and its been about 3 or 4 weeks, and this is my first grow so i am not sure cause i have nothing to compare to, and it looks as if i might get a good bud or 2 i will post a pic if requested

Sounds like the perfect way to do it. Very nice.

 

[richjames]

i did my whole veg state in 24/7 with a one a week bulb shut down for 15 min as rec. by manufacturer, with a 400 mh, after almost 2 months went down to 12/12 and its been about 3 or 4 weeks, and this is my first grow so i am not sure cause i have nothing to compare to, and it looks as if i might get a good bud or 2 i will post a pic if requested

Interesting, haven't heard of that yet. So what, once a week during veg, u give em a 15 minute nap? Interested in that pic as well

 

[smoke and coke]

Interesting, haven't heard of that yet. So what, once a week during veg, u give em a 15 minute nap? Interested in that pic as well

that 15 minute shutdown is for the bulb and the ballast.
i think during veg the plants dont really need the nap, but i like to give it to them and get a little stretch out of them during lights off, especially if im doing a vertical grow.

 

[collectselltrade]

yes that is about week old snap shot of the tramps, and yes every week a 15 min nap. as stated on the bulb box of light

 

[Nocturn3]

I have heard that 20/4 is the optimum veg timing schedule, with regards to end yield. Here is post written by OT1 on the subject:

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%

Plants vegged to final pots under fluorescents at 20w per sq ft on 18/6 yield 49%

Have not tried 36 hrs dark but did try 48 hrs from 18/6 veg. The final yield was down between 15 and 20% by var the pure sats the biggest loss in final weight and caused the odd herm, [sats] it did reduce the flowering time by 5 to 8 days.

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.

Taken from here.