18/6 or 24/0 light cycle Lowryder #2 ?!

I have some Lowryder #2 seeds in a hydroponics kit. I am currently only running my lights at 20/4 hear alot of mixed opinions. If both work which im assuming they do which yields more?

heres a pic but its 5 days old quite big now at day 15.
 

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Secret Jardin

Well-Known Member
Lowryder #2 is the newest product of the breeder’s quest to improve the strength, yield and flavour of his original variety while maintaining the unusual characteristics that made it so popular. Lowryder #2 has been infused with superior Santa Maria genetics, a variety known for copious resin production, exotic taste and soaring highs, it is an indica / sativa hybrid originally from Brazil. The cross was subsequently selectively inbred for three generations. The result is an auto-flowering dwarf that yields a wonderfully strong, head-turning smoke with intoxicating taste. The strength and flavour is backed by copious resin production and much-improved yield and stability. Buds are larger, tighter and more aromatic than the original Lowryder. As with Original Lowryder, no separate room or light cycle is needed to flower Lowryder #2. Outdoors, Lowryder #2 will mature quicker than any non-auto-flowering variety.Indoors, Lowryder cannbis seeds performs very well in soil mix (pots or beds) or in soil-less systems, where it can be cultivated from seed to bud in two months – 18 hours of light per day is recommended all the way through. Switching light cycles down to 12 hours may diminish yields and shorten the already-short life cycle slightly. Because Lowryder's life cycle is so brief, cloning becomes impracticable, so only plants from seed are grown.


Taken from the breeders them self.


Hope this helps.
 
i know what the breeder pack says i already purchased them. but as i said ive seen different posts about the light cycle for them and was curious.
 

fatman7574

New Member
Consider that the Ruderalis originally came from an area where there is nearly no sunset at the peak of summer with a nearly every changing amount of sunshine down to zero hours of light in the middle of winter. In the wild their typical growing season is only about 90 to 110 days with the period of nearly 24 hours of light per day just short of the middle of their life cycle.
 

Topher89

Active Member
I have been finding that in the AG, it is best to have *some* "night" time. So if you choose it to be a 20/4, or an 18/6, or somewhere in between, it doesn't REALLY matter. How about you puts your plants on 18/6 like the breeders manual says, and if you think you had more growth on 20/4, then change back! I wouldn't recommend 24/0 though...

I have done it a few times now, and find plants under 24/0 seem to stay small... And with Lowryder you know it is gonna bush out anywho, so why not just let it do it's thing how the breeders intended? Good luck!
 

mafuki

Active Member
:bigjoint:"Most green plants are classified as either C3 or C4 which represents how carbon(C) is used during photosynthesis.

C4 plants temporarily store carbon dioxide(CO2) over the dark period to use for photosynthesis during the day. C4 plants slow down photosynthesis once the stored CO2 is used up and they need to gather it from the air. Which is why trees slow down photosynthesis in the afternoon even though the sun is still bright. This does NOT apply to cannabis.

C3 plants(:leaf:cannabis/veggies) gather CO2 only during the light period when they are photosynthesizing. During the dark period these plants only use oxygen for their metabolic life processes. They don't uptake CO2, nor do they use it. As soon and as long as the light is on, C3 plants gather and use CO2 for photosynthesis.

C3 plants also have the ability to use higher concentrations of CO2 than what is found in the air. If the light is bright enough and the plants have sufficient nutes, their growth rate will accelerate from it(2000ppm vs. 400ppm of CO2), which increases yield. They can do this continuously, without a dark period throughout the vegetative stage.

The dark reaction is a process of photosynthesis that takes place in both darkness and light. It uses ATP and NADPH molecules that hold energy absorbed from light to break apart CO2 into it's base components.

Again people get anthropomorphic with their plant needs. People need rest, so plants must too. This is false as well. Light means growth. Scientifically. Although 18/6 will shock your plants less when you switch to 12/12, it's a personal choice whether you would rather sacrifice a little growth for a quicker adjustment or less photo confusion. If you want to save money or energy that's a personal choice too. Do what you need to do to make your growing scenario work.

Another factor to consider, your bulb life will be shorter the more you turn it on and off."

Hope this helps.:bigjoint:
 

fatman7574

New Member
:bigjoint:"Most green plants are classified as either C3 or C4 which represents how carbon(C) is used during photosynthesis.

C4 plants temporarily store carbon dioxide(CO2) over the dark period to use for photosynthesis during the day. C4 plants slow down photosynthesis once the stored CO2 is used up and they need to gather it from the air. Which is why trees slow down photosynthesis in the afternoon even though the sun is still bright. This does NOT apply to cannabis.

C3 plants(:leaf:cannabis/veggies) gather CO2 only during the light period when they are photosynthesizing. During the dark period these plants only use oxygen for their metabolic life processes. They don't uptake CO2, nor do they use it. As soon and as long as the light is on, C3 plants gather and use CO2 for photosynthesis.

C3 plants also have the ability to use higher concentrations of CO2 than what is found in the air. If the light is bright enough and the plants have sufficient nutes, their growth rate will accelerate from it(2000ppm vs. 400ppm of CO2), which increases yield. They can do this continuously, without a dark period throughout the vegetative stage.

The dark reaction is a process of photosynthesis that takes place in both darkness and light. It uses ATP and NADPH molecules that hold energy absorbed from light to break apart CO2 into it's base components.

Again people get anthropomorphic with their plant needs. People need rest, so plants must too. This is false as well. Light means growth. Scientifically. Although 18/6 will shock your plants less when you switch to 12/12, it's a personal choice whether you would rather sacrifice a little growth for a quicker adjustment or less photo confusion. If you want to save money or energy that's a personal choice too. Do what you need to do to make your growing scenario work.

Another factor to consider, your bulb life will be shorter the more you turn it on and off."

Hope this helps.:bigjoint:
Theoreretical info does not always prove out in reality. Over simplification is nearly equal to over stupification. Read up on simple things like repiration. C3 plants must photorespire C4 need not. A C3 plants does nearly all its respiration in the dark as a matter of need not choice. The last sentence is even more ludicrous as it is equivalent to saying your bodies blood sugar levels will not flucuate as much over a one week basis if you do not eat over the entire week versus eatting. Besides a bulbs degradation of light quality and quantity is the typical reason to change bulbs, not the wire/element life span.
 

mafuki

Active Member
Theoreretical info does not always prove out in reality. Over simplification is nearly equal to over stupification. Read up on simple things like respiration. C3 plants must photorespire C4 need not. A C3 plants does nearly all its respiration in the dark as a matter of need not choice. The last sentence is even more ludicrous as it is equivalent to saying your bodies blood sugar levels will not flucuate as much over a one week basis if you do not eat over the entire week versus eatting. Besides a bulbs degradation of light quality and quantity is the typical reason to change bulbs, not the wire/element life span.
:leaf:
This is not "theoretical" i Have written this statement based off the factual plant studies that have taken place in "REAL LIFE" and speaking with numerous seasoned and pro growers with experience and all the info i have stated can be backed up if you look further into it and check out how a Class C3 plants function. Let me address the light issue first: Every time you turn on the light the starter kicks in and the more you turn on the light the

more the starter is having to be worked out and the most common reason for HID light failure is the ballast starter dying therefor the less you turn on your ballast the longer your starter will last and you may say "well the heat becomes an issue when left on for a long time" well most people have some sort of exhaust system for their light to expel excess heat and if you don't then you shouldn't have a HID light on in the first place.

And now to answer your "Respiration" issues: I found this study on respiration done in a study at the U of Colorado at boulder and here is the link as well if you would like to check it out http://www.colorado.edu/eeb/courses/1230jbasey/abstracts/1.htm : "while cellular respiration predominates in the dark (although it is a continual process). meaning respiration occurs "during the light hours as well as during the dark hours.

I have also found the following to useful in my study-

"It's been established for many many many years now that cannabis is a C3 plant. It does not need a dark period.
C3 plants gather CO2 only during the light period when they are photosynthesizing. As long as the light is on, C3 plants gather and use CO2 for photosynthesis.
Some growers practice a version of anthropomorphism with their plants. They believe that since people need rest, plants do as well. Concerning cannabis, this is not true.

Every grower can make a personal choice about light cycle. They can save on their electric bill or prolong ballast/bulb life. 18/6 can be less of a "shock" when changing over to 12/12 for flowering than 24/0 or heat issues can be addressed by fewer hours of light, but basic botany has proven long ago that cannabis needs no dark period.

Ed Rosenthal, Mel Frank and Robert Clarke all have covered this extensively over their careers.

www.mellowgold.com/grow/mjbotany-removed/marijuanabotany1.html Marijuana Botany Chapter 1 - Sinsemilla Life Cycle of Cannabis
/www.cannabisculture.com/articles/3127.html Need the dark
-------------------------------------------------------------

"This is a direct quote from Ed Rosenthal whom most of you know is a marijuana growing guru:

Marijuana plants photosynthesize as long as they receive light as well as water, air, nutrients and suitable temperature. Photosynthesis is the process in which plants use the energy from light (primarily in the blue and red spectrum's) to combine carbon dioxide (CO2) from the air and water (H2O) to make sugar while releasing oxygen to the air.

Plants use sugars continuously to fuel metabolic processes (living) as well as for tissue building. The plant combines nitrogen (N) with the sugar to make amino acids, the building blocks of proteins. They are the substance of plant tissue. When the light is off, the plant's metabolic processes, respiration and growth, continue.

The plant can photosynthesize continuously so it produces the most energy and growth when the light is on, continuously. Continuous light does not stress the plant, which reacts somewhat mechanistically to it.
Plants under an 18-6 light-dark regimen are producing sugar only three quarters of the time. They are thus growing at only 75% of their potential. Leaving the light on continuously will result in bigger plants, faster, which leads to higher yields."

-------------------------------------------------------------

"The following information is straight from Greg Green's "The Cannabis Grow Bible"

Cannabis is a light demanding plant. Professional growers keep the light on their plants using the 24/0 photoperiod for this reason. Plants that grow under 24/0 flourish and do not need a quantity of darkness in order to rest and perform photosynthesis properly. Plants that are grown in optimal conditions under 24/0 light regime grow vigorusly and the benefits of a 24/0 photoperiod can be seen actively in the results. More nodes are formed, more branches are created, leaf numbers increase, the plant is growing at its finest.

Some growers opt to use 18/6 as their photoperiod. This is 18 hours of light, six hours of darkness light regime. Under these conditions the plant will grow quite naturally but not as vigorously as the 24/0 photoperiod.

The 18/6 photoperiod expels 3/4 the amount of light that a 24/0 photoperiod does. Although this does not mean that a plant produces 1/4 less leaves,branches and nodes under the 18/6 photoperiod, it certainly does show the correlation between light and cannabis growth. As we have said already, cannabis is a light demanding plant. There are no problems associated with 24/0 and although some have attributed cannabis sexual dysfunction (the hermaphrodite conditon) to 18/6 photoperiod these problems are actually the result of heat stress.

A 24/0 photoperiod requires that your grow room temperature be kept well monitored. The 18/6 option is cheaper to run. You use a quarter less electricity and this will have an impact on your electricity bill. Also the 18/6 photoperiod will generally extend the bulb's lifespan. During the 6 hours of darkness the grow room is allowed to cool down for this period but a well maintained good grow room setup should not require a cooling down period.

24/0 and 18/6 both share the same problem though. Once you start the photoperiod you should keep that way especially when the plants near maturity (the preflowering stage). An irregular photoperiod can cause more males than females to develop. It can also cause sexual dysfunction to appear. Whether you choose 24/0 or 18/6 as your vegetative photoperiod try to keep that photoperiod unitl your plants are mature enough to express their sex."
 

fatman7574

New Member
Fine the Phds with degrees in horticultural sciences are wrong and Ed with no real formal higher education is right. If that creams your jeans I am happy for you.

Neither Ed or Frank have degrees, and I think Clark has a degree in electrical engineering.

Greg Green, nope no Phd there either, just another hack writing marijuana comic book grade growing books.

I tend to believe Phd's in horticulture sciences over old worn out "gurus" or comic book grade pot growing book authors.
 

mafuki

Active Member
Fine the Phds with degrees in horticultural sciences are wrong and Ed with no real formal higher education is right. If that creams your jeans I am happy for you.
Uhh no. The phds have stated that c3 plants respire during light hours "and" dark hours so what is your point about it needing dark hours??? And ed has more first hand experience than most phds and after years of growing under every light sequence he had come to this conclusion. Along with the other top growers. You dont seem to come at this debate with much evidence or facts to back up you side. I am up for a healthy debate obviously but you just seem to want say "nah nah your wrong" and insult me. get some evidence to back up your statments like i have and we can continue.
 

fatman7574

New Member
Dude the Phds say plants do respire day and night. But they also say the C3 plants do nearly all repiration during dark hours. Ed is just a hack, no more. He does no formal testing or research. It is comical to sse him posing in a white lab coat. What a joke. His brain has already retired but ho is ego and greed keeps him pumping out garbage. Nearly everything he says and writes is entirely based upon nothing but his uneducated opinions. I am sure though being a guru and all that he can see and know all just by looking at something. He does not need to due testing or rearch or even lom ng term observations as he is a marijuana "guru." He tries to say that his wruting s are also based upon information obtaim ned by reserachers but none of that reserach is ever revelaed. Ed is no better any possibly less educated and experienced in pot growing than many of the posters to this and other forums. You tell me to provide proof. Proof of what. That you misquote what reserachers say by just quoting things in part or out of context. Or that you for some starange reason think that putting faith in uneducated hacks that likely didn't even finish high school is a better idea than believing people who have a Phd in horticultural sciences. Your printing exerpts from maraijuana comic books that purport to be growers bibles is ludicrous.

I need not insult you as you make yourself look bad enough. I just tried to tell you I do not give "Guru" stauts or demi god status to marijuana comic book writers.
 

mafuki

Active Member
wow..Tell me one thing then if all my sources are false where are your sources that say the dark respiration provides more growth and health then the respiration which occurs during the light hours. You keep saying things like "all the phds" "horticulturists" "scientists" but where are these statements coming from. i have given you quotes which were fragments of the article and in which i provided the links for you to follow and read the entire studies yourself. i provided the quote as a small summary and i posted the links right after that so you can read them in their entirety( I DONT WANT YOU TO JUST READ MY AS YOU PUT IT "OUT OF CONTEXT QUOTES". I WANT YOU TO READ THE WHOLE ARTICLE IN THE LINKS I PROVIDED WHICH CONTAIN THE QUOTES THAT I USED). I also had quotes from a University OF COLORADO study which states that Respiration occurs in both light and dark times. So again i ask you "give me one example where your so called "Phd in Horticulture science" says that a c3 plant needs the dark and or wont grow as healthy or yield more than a c3 plant with dark time. If you ever wrote a paper in college or went to court you would be laughed at IF YOU DIDNT HAVE REFERENCES TO SUPPORT YOUR CLAIMS lol. You can play your little insulting game all day but until you actual bring me your references that back up your claims, you will just look foolish. If Ed is not a credible source for you then i will be glad to find more sources for you that are more credible. Ed is not my 1 and only source....

Why I think i am right so far:

1. You have given NO references of these so called "Phds in Horticulture science" which you say can back up your beliefs
2. You have only stated your opinion with no factual evidence.
4. My conclusions are based off many scientific facts on C3 plants.
5. Look into C3 plant facts and it will tell you that they "Dont" i repeat "dont" need the dark to grow healthy.

....Prove me wrong!!! PLEASE!! DONT TELL WHAT YOU THINK, "SHOW ME WHY YOU THINK THAT WAY. " SHOW ME WHERE YOU GOT YOUR SCIENTIFIC INFO" THAT BROUGHT YOU TO YOUR ULTIMATE CONCLUSIONS SO THAT I TO CAN KNOW THE TRUTH.
 

sike89

Active Member
i remember reading somewhere that 24/0 light if the fastest growth you can get BUT 20/4 which is what i did gives a somewhat more healthy grow.

BUT

again everyone will say that there way works best.. i really did like the 20/4 light and it does make sense that the plant needs to sleep a little bit.
 

mafuki

Active Member
i remember reading somewhere that 24/0 light if the fastest growth you can get BUT 20/4 which is what i did gives a somewhat more healthy grow.

BUT

again everyone will say that there way works best.. i really did like the 20/4 light and it does make sense that the plant needs to sleep a little bit.
It does seem more natural to give it rest time but a lot of things that have brought us the indoor strains we have today have been altered and developed in ways that dont occur in outdoor settings.
 

fatman7574

New Member
Mafuki you need to get off your lame ass and do your own research. And read everything, not just the few lines that can be taken out of context to "prove" your absurd opions. I get paid for my research, it is part of the job of my job that comes along with being a full professor. Your arguing over matters covered freshmem college students. I wouldn't expect a cave man to teach you it is possible to start a fire by rubbing two sticks together, and I would no ask any of my freshmen college student to post "Proof" for your lame *ss. I would also not do that research for a student and I am paid to teach students.
 

mafuki

Active Member
LoL ok "PROFESSOR "

HERE I STARTED ANOTHER THREAD BEFORE THIS ONE. yOU SHOULD GO SEE WHAT SOME OF THE GUYS OVER THERE SAID ABOUT THERE OWN FIRST HAND EXPERIENCES WITH 24/0 AND 18/6 IT'S PRETTY INTERESTING.

Here's the link enjoy By the way i think we all know your not a professor. Buddy!: https://www.rollitup.org/general-marijuana-growing/292985-24-0-vs-18-6-a.html

I AM STILL WAITINF OR YOU TO PROVIDE AT LEAST ONE PIECE OF MATERIAL WHICH YOU THINK PROVES YOUR SIDE OF THIS DEBATE.
 

fatman7574

New Member
Mafuki you might have found what you posted written some where and copied and pasted without referencing, but thta does not mean that you did not simply post only that which supports your opinins. That is called posting out of context. It is also called plagerizing or contextual print theft. Post the reference so it can be read in its enteirety or shut your pie hole *sshole.
 

mafuki

Active Member
Mafuki you might have found what you posted written some where and copied and pasted without referencing, but thta does not mean that you did not simply post only that which supports your opinins. That is called posting out of context. It is also called plagerizing or contextual print theft. Post the reference so it can be read in its enteirety or shut your pie hole *sshole.
Listen i am not plagiarizing and i am not going to post articles that i find in their entirety because the post would be huge that why i give you the links which i pasted in my post for you to go read the article in its entirety for yourself so you are not just having to take my word for it. and anyone who has done a grow with 24/0 has found that it works great therefor it has been shown that marijuana has adapted to 24 hours of continuous light through veg state. So i think based of what we have seen that it kind of proves that 24 hours works better than 18/6
 

fatman7574

New Member
Dark respiration is a misnomer; whereas it is best measured in the dark in the absence of photorespiration, it occurs all the time in living plants.

http://www.biology.duke.edu/bio265/zhangmin/Aboveground.htm

Perhaps you are basing your "opinions" on a statement such as this. This statement does not say or imply in any way that plants can do all required respiration while undergoing photosytehesis (lights on). It only implies that yes palnts do carry out photosythesis during the day. However if you did even a small amount of reserch you would find neraly all of the respiration carried out during the day (during photosythesis) is carried out by the roots. The fact still remains that at least 50% of the respiration is carried out after photosythesis by the roots, stems and leaves. The key is after photosytheis.

Stand-level Models


Plant respiration models

Plants respires about half of the carbon available from photosynthesis (after photorespiration), thus modeling the part of respiration is critical for understanding the respiration of ecosystem.

Note: After photosynthesis means after the lights are out!

http://www.biology.duke.edu/bio265/zhangmin/Stand2-new.htm

This took about two minutes to find Jack. Now put up or shut your pie hole.

The crap you have posted is essentially about CO2 take up. CO2 take up is only a part of plant growth Jack.
 
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