Better lighting schedule, bigger growth, cheaper bills

del66666

del66666

Well-Known Member
sounds bloody complicated............why not just run 12-12 from atart .......save power.....less heat.............keeps things simple.....get reasonable weight..........
 
maximum

maximum

Active Member
johny1212 said:
Fuck it. I am going to give it a run. Just switched to this timing for my veg room. We'll see how it goes;)
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Yea I didnt do veg like that I did 18/6 because I just read the article a few days ago. Luckily I just started flowering and I am doing the flowering side of it which is 11-13 and dropping half an hour of light every 2 weeks.

Next grow I will veg with 12-1
 
MJstudent

MJstudent

Well-Known Member
maximum said:
oooooh fuck is that true?
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just found it, some marijuana botany thing i was reading heres the adress to the website http://www.mellowgold.com/grow/mjbotany-removed/marijuanabotany4.html

im not saying its right im just saying this is what ive read and here it is :

Factors Influencing THC Production
Many factors influence the production of THC. In general, the older a plant, the greater its potential to produce THC. This is true, however, only if the plant remains healthy and vigorous, THC production requires the proper quantity and quality of light. It seems that none of the biosynthetic processes operate efficiently when low light conditions prevent proper photosynthesis. Research has shown (Valle et al. 1978) that twice as much THC is produced under a 12-hour photoperiod than under a 10-hour photoperiod
 
W

watchhowIdoit

New Member
MJstudent said:
just found it, some marijuana botany thing i was reading heres the adress to the website http://www.mellowgold.com/grow/mjbotany-removed/marijuanabotany4.html

im not saying its right im just saying this is what ive read and here it is :

Factors Influencing THC Production
Many factors influence the production of THC. In general, the older a plant, the greater its potential to produce THC. This is true, however, only if the plant remains healthy and vigorous, THC production requires the proper quantity and quality of light. It seems that none of the biosynthetic processes operate efficiently when low light conditions prevent proper photosynthesis. Research has shown (Valle et al. 1978) that twice as much THC is produced under a 12-hour photoperiod than under a 10-hour photoperiod
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http://youtu.be/lfiI78uN3Ks
 
maximum

maximum

Active Member
MJstudent said:
just found it, some marijuana botany thing i was reading heres the adress to the website http://www.mellowgold.com/grow/mjbotany-removed/marijuanabotany4.html

im not saying its right im just saying this is what ive read and here it is :

Factors Influencing THC Production
Many factors influence the production of THC. In general, the older a plant, the greater its potential to produce THC. This is true, however, only if the plant remains healthy and vigorous, THC production requires the proper quantity and quality of light. It seems that none of the biosynthetic processes operate efficiently when low light conditions prevent proper photosynthesis. Research has shown (Valle et al. 1978) that twice as much THC is produced under a 12-hour photoperiod than under a 10-hour photoperiod
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yea it does say "Research has shown (Valle et al. 1978) that twice as much THC is produced under a 12-hour photoperiod than under a 10-hour photoperiod"

Thats got me wondering now. Probably azman will find out before me, since Im not started yet and he is almost finished. Really wanting to hear from him.
 
maximum

maximum

Active Member
but hold on I am reading more and it says

It is not known why at least 10 hours (and preferably 12 or 13 hours) of light are needed for high THC production. This is not dependent on accumulated solar energy since light responses can be activated and THC production increased with only a 40-watt bulb. A reasonable theory is that a light-sensitive pigment in the plant (possibly phytochrome) acts as a switch, causing the plant to follow the flowering cycle. THC production is probably associated with the induction of flowering resulting from the photoperiod change.
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It doesnt say that 18 hours is better than 13 it only says that 12-13 light hours are preferable for thc production. With 12-1 your getting the 13 hours it says is preferable. Does that include the flowering phase? Because in flowering we can't do 13 hours light right? Is that when most thc is being produced during flowering? Im actually confused now.
 
T

tellno1

Well-Known Member
it is confusing .. but that statement is for veg .. the switch is the flower cycle .. when you switch the lights from 12-1
 
maximum

maximum

Active Member
tellno1 said:
it is confusing .. but that statement is for veg .. the switch is the flower cycle .. when you switch the lights from 12-1
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oh ok. So for flowering it should get 10 hours light or preferably 12-13? So 12/12 should be the best for flowering according to that statement. But Im skeptical only because that was written in 1978 dont we have newer studies on amount of light and THC production? And if 12-1 works and its getting less light then maybe its like bodybuilding. I used to do that. I would have to EAT, WORKOUT, SLEEP. Its the three key ingredients to get huge. If you dont sleep enough you wont grow no matter how much you workout or eat. If you worked out 6 hours a day and eat lots but only sleep like 4-6 hours you wont get good gains. The dude getting 45minute workout and sleeping 10 hours would have the advantage. Maybe dope plants are similar, they need to eat and then sleep a shit load. Could be why 12-1 works if it does, the plant can grow and sleep.

Im just worried about THC production. Does 12-1 cause less THC to be produced. Thats the ultimate question. Its pointless otherwise. Who cares if you save power growing lots of weak dope. What we need is a good smoke report from a 12-1 tester. Or someone with an actual THC testing machine or access to one. Dont dispensaries have them in the US?
 
T

tellno1

Well-Known Member
years ago i had the oportunity to talk to a botanist at a local univ, and this is how it was explained to me .. the marijuana plant starts producing cannaboids as soon as it sprouts,optimum production is between 12 and 13 hrs of light, using the 12-1 veg cycle produces the highest amout of thc canniboids possible in the veg cycle, storing it in the stems, leaves and branches, increasing or decreasing the light times reflect on this production, and by adding the hour of light in the middle of the dark time (can be as little as a 40w light bulb) you hold the plant from going into flowering while it matures rapidly. by using the diminishing light schedule for flowering, after using the 12-1, shortens the premature flower stage and transitions to the peak flower stage quicker, thus increasing production of resin and thc canniboids, as you diminish the timing , the plant goes into overdrive , trying to produce as much resin and cannaboids before the plant lifecycle ends, since your only dropping the timing 1/2 hr each time , for the first 4 to 7 weeks, the plant is in overdrive production of the thc canniboids and resins. And since you hit the 10 hrs of light late in the plants life it has no detrimental effect on the production of cannaboids because the plant is already slowing production itself , but you have to know the flowering time of the plant (within a couple of weeks) to fully reap the benifits of this system ( ie some plants mature at 6 weeeks some at 9 weeks) in order to make sure the 10 hrs of light matches the last 3 weeks of the plants lifecycle. another thing to remember is that when company says the plant has 15%thc, its actually saying 15% of the cannaboids produced are thc canniboids.

Hope this helps a bit .. still confuses the heck out of me .. but it does work for me
 
maximum

maximum

Active Member
tellno1 said:
years ago i had the oportunity to talk to a botanist at a local univ, and this is how it was explained to me .. the marijuana plant starts producing cannaboids as soon as it sprouts,optimum production is between 12 and 13 hrs of light, using the 12-1 veg cycle produces the highest amout of thc canniboids possible in the veg cycle, storing it in the stems, leaves and branches, increasing or decreasing the light times reflect on this production, and by adding the hour of light in the middle of the dark time (can be as little as a 40w light bulb) you hold the plant from going into flowering while it matures rapidly. by using the diminishing light schedule for flowering, after using the 12-1, shortens the premature flower stage and transitions to the peak flower stage quicker, thus increasing production of resin and thc canniboids, as you diminish the timing , the plant goes into overdrive , trying to produce as much resin and cannaboids before the plant lifecycle ends, since your only dropping the timing 1/2 hr each time , for the first 4 to 7 weeks, the plant is in overdrive production of the thc canniboids and resins. And since you hit the 10 hrs of light late in the plants life it has no detrimental effect on the production of cannaboids because the plant is already slowing production itself , but you have to know the flowering time of the plant (within a couple of weeks) to fully reap the benifits of this system ( ie some plants mature at 6 weeeks some at 9 weeks) in order to make sure the 10 hrs of light matches the last 3 weeks of the plants lifecycle. another thing to remember is that when company says the plant has 15%thc, its actually saying 15% of the cannaboids produced are thc canniboids.

Hope this helps a bit .. still confuses the heck out of me .. but it does work for me
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Smart reply. Makes sense to me. Fuck can`t wait to try it already.

Also, what about those people that skip veg and just go right to flowering? They dont have any veg cycle at all. How does that affect it then?
 
T

tellno1

Well-Known Member
you mean 12-12 from seed .. not sure, but they stay at 12 hr all the way thru so it will also be at peak cannaboid production, but the plants will be smaller since no veg , ive read a little on it but its not my style of growing ... i like to veg and flower seperately

happy growin
 
maximum

maximum

Active Member
tellno1 said:
you mean 12-12 from seed .. not sure, but they stay at 12 hr all the way thru so it will also be at peak cannaboid production, but the plants will be smaller since no veg , ive read a little on it but its not my style of growing ... i like to veg and flower seperately

happy growin
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ok man great info you gave thanks!
 
del66666

del66666

Well-Known Member
these are all 12-12 from seed peeps..:weed:
 

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maximum

maximum

Active Member
bro what kind of yeilds are you getting with 12-12 from seed because those like perfectly fine to me.

Thats why I think the 12-1 lighting schedule isn't crazy. You skipped the veg altogether.
 
del66666

del66666

Well-Known Member
maximum said:
bro what kind of yeilds are you getting with 12-12 from seed because those like perfectly fine to me.

Thats why I think the 12-1 lighting schedule isn't crazy. You skipped the veg altogether.
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best ive pulled is just over 6 oz dry off a lemon skunk.........2-4 regularly
 
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