Led Flower cycle

[ledmcbucks]

Will the flower cycle be longer under LED? Never grown before and have some
in 12/12 for about 5 weeks under 300w panel. Grown from seed under 90w led for 2 months 24/24. Thanks in advance

 

[McBudz]

Well you could try the extended photoperiod 21:36/12 schedule during peak flowering .. say weeks 4-7 or 5-8 and it may give you better results considering you are using led. Other wise 12/12 will be the default flower cycle regardless of light.

The only photoperiod manipulation from years of experiments that offered discernible improvements was this adjustment made for 1 or 2 calendar weeks at the point of maximum flowering rate: Daylength of 21 hours, 36 minutes with a dark period of 12 hours. To accomplish this, you need a 7 day, 24 hour digital timer. During a 7 day calendar week on Earth, the "sun" only cycles 5 times. This permits easily switching back to the regular 12/12 at your discretion. You may want to only alter during peak flower production to stimulate the plant's metabolism. Using this photoperiod throughout the flowering cycle will cause this:

A variety that takes 49 days of 12/12 to mature, won't see 49 - 12 hour dark periods under 21:36/12 until almost 10 calendar weeks have passed.

The total increase in light energy is almost 80%, which will produce larger yields, if all of your other enviromental conditions are kept optimal.

The total increase in flowering period is only 40%, half the potential room for improvement. This means you don't have to be perfect to win out.

Selective application of the 21:36/12 photperiod for only 1 or 2 weeks extends the wait only 2 to 4 Earth days, which makes up the missing 2 complete day and night cycles each week on Planet Ito. This permits the additional light energy to be provided without purchasing additional equipment or overloading existing circuits, which maximizes the existing system's capabilities. The main advantage is that matched with co2 and optimal nutrition, the plants metabolism will increase dramatically. I have only successfully tested this photoperiod for two weeks. The potential for a net increase of 40% over the entire cycle (80% increase in light energy vs. 40% longer wait) is worthwhile. Don't be afraid!

Day 1 - Sunday, 6:00am til Monday, 3:36am
Day 2 - Monday, 3:36pm til Tuesday, 1:12pm
Day 3 - Wednesday, 1:12am til Wednesday, 10:48pm
Day 4 - Thursday, 10:48am til Friday 8:24am
Day 5 - Friday, 8:24pm til Saturday 6:00pm

Author: MisterIto

 

[ledmcbucks]

Thanks for the tip. I will try that soon. I have one plant that looks good and the other
not so good. The seeds were from the unknown. Im 5 weeks into flower with a 300w LED panel and one of the plants looks like it will be awesome and the other looks like there wont be much at all. I was just wondering if I let them go a little longer will they get bigger or does the thc peak at 8 weeks no matter what kind of light as long as it on a 12/12 cycle or 23:59 and 12cycle. Could I try to strech the light cycle now that im 5 weeks in? I have been enjoying your posts and journals. I have some White Widows that I planted at the same time as your lastest grow. Your plants make mine look like weeds. Thanks for the tip.