Professor Marijuana's 45 Day Grow Q & A

[dukeanthony]

I use the Aeroflo2. They don't have misters they have tubes they circulate the water and oxygenate the water in the arms. All of the parts can be purchased individually, the tubes are around $10. They sell an extension to double the 60 systems capacity(the picture I have posted is one of them) I have found however that I prefer spending the extra money to purchase a whole new system instead of the extention. I like having an independent pump instead of stressing a single one, also I don't like the circulation of the extended system.
View attachment 1759325

This is an aeroflo2/60 with the extention I believe. It's a personal one I run in the garrage not at a facility. The plants are 30 days old from 2 inch clones (sour D). For an example this system is not in a state of the art facility, they obviously aren't pure indica's and are at only 30 days. That shows two of three systems in that room, or 120 clones. So in a home grow at 30 days what do you think they will average wieght wise? Multiply by 60 and it's a hell of a yield. People, I am not bs'ing you. I have absolutely no reason too. The possibilities are staggering. try it, I'll help you. FREE. you decide who's full of crap

It is to date my favorite system. I know what it can do if one right, look at it

Thanks I'll look into the Aeroflo2.

 

[reverof]

Ya know no matter if you believe what he says on this subject or that subject or what not, it has little to do with marijuana growing. The fact of the matter is he is very much documented for his abilities in marijuana growing, his knowledge in marijuana growing and is considered by many to be an expert in the field.

I think if the bashers here would just stop taunting him and allow him to answer questions and give info EVERYONE can learn something.

 

[303]

No need for links, no one would make a thread about it. That's ridiculous. 12/20 is a great recipe for hermie.

 

[Professor Marijuana]

Professor, I would love for your help as well Could you look at the post 2 below yours, called "lets get this shit rolling" Thanks bud.

I'll take a peek and get back to you. Thanks, and sorry for the delay

 

[Professor Marijuana]

A plant will flower with 12 hours of darkness and 20 hours of light, 12/20, is not true. You may find a strain or pheno that may respond to this. But in general it is not the truth when it comes flowering MJ plants. Bad advise in most growers opinion.......

Look up "long night photoperiodic" It will most definately flower with 20 hours of light provided it receives 12 hourse uniterupted darkness. I have don't it with several strains from one end of the spectrum to the other. I also know several growers that use extended light periods as a generally rule.

And if you take a look when I have mentioned this technique I clearly stated that I don't like it because it promotes hermies. As with most of what I say, the part that supports you is read and the part used to discredit me is washed over. Perfect example, Exactly what I said but you profeer it as if I were advocating it's use.


Don't like anything that tries to trick the plant for greater yields

 

[Professor Marijuana]

heres a good link http://astro.unl.edu/classaction/animations/coordsmotion/daylighthoursexplorer.html
just add you latitude and it wil tell you your light hrs etc for out door
i have seen by 14 hrs of daylight plants start to flower

Good stuff Dr. Thank You. It is clear to any outdoor grower that cannabis will beging it's flowering before the equinox. It is my belief that the changes in the season
such as lessoning light, temps, tilt of the planet and other things start telling the plant it is time to start the reproduction cycle. I am currently experimenting with many factors indoors to see what factors have an influence on this. My thoughts behind this are that we may be able to increase trichome production or have an influence on the percentage of certain cannabenoids by isolating additional factors that impact the flowering cycle.

Dr. I submit that these conversations serve a far greater and more useful purpose then attacks on person do. What any of this crap outside the spectrum of cultivation has to do with our purpose is beyond me. Rise up.

 

[DrFever]

as for experimenting indoor how you like these readings in 6th week of flower

 

[Professor Marijuana]

heres a good link http://astro.unl.edu/classaction/animations/coordsmotion/daylighthoursexplorer.html
just add you latitude and it wil tell you your light hrs etc for out door
i have seen by 14 hrs of daylight plants start to flower

To further touch on this. Anyone who has grown outdoors knows that other light sources are common, street lamps, access lights, moon, etc. Outdoors they do not generally have an impact on flowering. Indoors any one of those light sources (cover myself here, except the moon obviously) would take our girls back out of flower. Part of my research has to do with the intensity of the light, and the intensity in comparison to the "Light hours" light source. If the light source is only 5% of the daytime light, AND, is introduced subtly will it stop flowering? Good stuff worthy of research. (I haven't figured out how to sell that yet, but being me I will no doubt have it in a bottle for sale soon. Find me at some "suggested" place to get in line) Sarcassim folks, see how rediculous this is?) Can't somebody just be passionette about cannabis? Is it in the rehlm of possablity that a person who doesn't need the money might just do it for the love of the plant? Damn it would be nice to have engauged minds of experienced growers think, and ponder, the "what if's" instead of the unsubstantiated accusations. Any takers? Doc? You game to move past the trivial and into the advancement? You are the only one who has critized that has also contributed. Imagine if there wasn't the negative, perhaps a person in a perfect world could grow 11lbs in 43 days, under 2000w. I have good information from a known source that it might just be possable.

Can a person who has been trashed as much as I have, that can still poke fun and have a smile on his face really be all that bad? FUCK

 

[Professor Marijuana]

Here is some info that speaks of the dark period. It is NOT the light period that cannabis reacts to, it is the DARK. Cannabis does not measure the amount of light, it has no relevence, it measures the dark period. There is much information available for those curious about extended light periods during flower. Again, I do not recomend it. Hope this helps to clarify

Many of the biological and behavioural activities of plants, animals (including birds and amphibians), insects, and microorganisms are either adversely affected by light pollution at night or can only function effectively either during or as the consequence of nightly darkness. Such activities include foraging, breeding and social behavior in higher animals, amphibians, and insects, which are all affected in various ways if light pollution occurs in their environment.[1] These are not merely photobiological phenomena; light pollution acts by interrupting critical dark-requiring processes.
But perhaps the most important scotobiological phenomena relate to the regular periodic alternation of light and darkness. These include breeding behavior in a range of animals, the control of flowering and the induction of winter dormancy in many plants, and the operational control of the human immune system. In many of these biological processes the critical point is the length of the dark period rather than that of the light. For example, "short-day" and "long-day" plants are, in fact, "long-night" and "short-night" respectively. That is to say, plants do not measure the length of the light period, but of the dark period.[2] One consequence of artificial light pollution [3] is that even brief periods of relatively bright light during the night may prevent plants or animals (including humans) from measuring the length of the dark period, and therefore from behaving in a normal or required manner. This is a critical aspect of scotobiology, and one of the major areas in the study of the responses of biological systems to darkness.
In discussing scotobiology, it is important to remember that darkness (the absence of light) is seldom absolute. An important aspect of any scotobiological phenomenon is the level and quality (wavelength) of light that is below the threshold of detection for that phenomenon and in any specific organism. This important variable in scotobiological studies is not always properly noted or examined. There are substantial levels of natural light pollution at night, of which moonlight is usually the strongest. For example, plants that rely on night length to program their behaviour have the capacity to ignore full moonlight during an otherwise dark night. If this ability had not evolved, plants would not be able to respond to changing night-length for such behavioural programs as the initiation of flowering and the onset of dormancy. On the other hand, some animal behavioural patterns are strongly responsive to moonlight. It is thus most important in any scotobiological study to determine the threshold level of light that may be required to interfere with or negate the normal pattern of dark-night activity.

 

[Professor Marijuana]

as for experimenting indoor how you like these readings in 6th week of flower

Seriously? 10degrees C? Not my strong suit admiitidly but isn't that around 50 degrees F? I have often thought of doing some controlled studies on trichome production in varying temps. I suspect that cooler temps would promote increased production but purely speculation. Your experience? and have you done any controlled study? Highly interested

 

[burrr]

Well Professor, I've taken some of your advice already. It's nothing that I couldn'y have found in a book, or online, but you brought it to my attention in this thread. I've started venting my hoods with outside air and was able to bring my lights a few inches closer to the top of my girls. I also added more panda plastic on the sides of my grow, and on the floor. I am working on making every last lumen hit something green! CO2 will come later. Thanks for the friendly advice

New question for you:
I've found just the right size of clone for me to start with, while growing 3 under a 600hps. Is there any problem with cutting plants way back that have vegged for too long? Does this pruning cause much stress? How much is too much? How many days before I move them to flowering should I allow them to recover from this pruning?

 

[Professor Marijuana]

Well Professor, I've taken some of your advice already. It's nothing that I couldn'y have found in a book, or online, but you brought it to my attention in this thread. I've started venting my hoods with outside air and was able to bring my lights a few inches closer to the top of my girls. I also added more panda plastic on the sides of my grow, and on the floor. I am working on making every last lumen hit something green! CO2 will come later. Thanks for the friendly advice

New question for you:
I've found just the right size of clone for me to start with, while growing 3 under a 600hps. Is there any problem with cutting plants way back that have vegged for too long? Does this pruning cause much stress? How much is too much? How many days before I move them to flowering should I allow them to recover from this pruning?

Thank You burrr, you are what I had hoped to have happened. Obvioulsy, anything can be found somewhere, it's all been said, BUT, sometimes newer growers don't know what to ask let alone where to find it. It is and always has been my wish to stimulate the imagination of new growers and start thought regarding cannabis cultivation that might otherwise lat dormant. I'm not sure why that is such a bad thing. Imagine how much could have been made available to folks like yourself had those who bash had instead contributed something useful. I can assure you that the vast majority of growers I've met over the years are all about teaching and advancing cannabis not putting people down specially when they have no clue what they're saying and just flat out refuse to back it up. Where have you seen any of them back up what they're saying. With the one exception of the Dr, none have offered dick to any of you wanting to learn. There is a saying "don't let your mouth write any checks your ass can't cash" that of course is meant for men. When weak people want to feel strong they have a tendency to get bullet proof. but of course only when they don't have to let anyone know who they are. Not one would say this shit to my face I promise you that. Disrespecting a 6'6" 275lb man to his face is a little harder then doing it to their back which is the same thing as doing it under a false ID. Just a variation of little man syndrome.

So what is "YOUR" right size clone? It's different for everyone. Technically you can cut your plant back as much as you want. The more you chop the more stress it. Prune it back correctly so that you promote continued growth. Make sure your cola is able to split and continue new growth. I would give your plant just enough time to see new growth in critical areas. You'll probably be fine. A shot of thrive alive is never a bad thing. Also, coneder how long it would take to clone and reach the desired hieght. I prefer a new plant over one that has been cut back to fit.

 

[a mongo frog]

@ professor i have read conflicting articles about the rh while burning co2. one article saying saying humidity should he higher and the other article saying lower is better.
which is correct?

 

[unohu69]

I am only wondering when the BBC documentary is coming out? I have lurked in forums for years, read every thing I can on the subject. I registered here tonight specifically to ask.

Definitely interested in hearing more from you.

 

[burrr]

Man, it's amazing that the professor is the only one on this site not hiding behind an alias, and people are calling him the fake one.

Metalarc, I read all the same shit you did when I started to grow. I think you could benefit from making the same 2 changes I just did. Your grow is impressive... but has room for improvement as well. It is possible to learn a little something without pictures.

 

[DrFever]

Seriously? 10degrees C? Not my strong suit admiitidly but isn't that around 50 degrees F? I have often thought of doing some controlled studies on trichome production in varying temps. I suspect that cooler temps would promote increased production but purely speculation. Your experience? and have you done any controlled study? Highly interested

actually if you think about it and have a certain strain for instance mine comes from the hindu mountains temps flucuate really crazy from to litterally freezing extreme strong winds so what most growers should think about when growing a strain is to do some research on where the plant originated from and try to imate the climate as close as possible
when you think about growing anything weather is most important part of growing period we as indoor growers try to imatate outdoor weather as for indoor.
And does it make a difference ??? temps in flowering stage i beleive it does no different then growing outside as daylight hrs diminish so does actual temp colder nights normally where i come from you dont chop till second frost

 

[obijohn]

Why do people feel the need to talk shit against a man who knows what he's talking about and has a track record to prove it? He's trying to give out some good information, and a few morons are ruining it. Prof, ignore the trolls and continue the thread as you intended

 

[burrr]

Professor, more questions
NPK, you didn't get into this much. Do you run the standard setup from House and Garden Do you tweek the ratios much from start to finish?
Nute concentrations: what do most strains you've grown like for an EC level?
I just scored a co2 setup, and will be getting her fired up tomorrow. What kind of change in nute consumption, and concentration will I see?
I've been growing at very low nute levels, .8EC at the most.

Thanks for passing along some free advice. I've read some articles, and I know you are a stand up guy. Hope to smoke a dube with you one of these days.

 

[don2009]

Thank You burrr, you are what I had hoped to have happened. Obvioulsy, anything can be found somewhere, it's all been said, BUT, sometimes newer growers don't know what to ask let alone where to find it. It is and always has been my wish to stimulate the imagination of new growers and start thought regarding cannabis cultivation that might otherwise lat dormant. I'm not sure why that is such a bad thing. Imagine how much could have been made available to folks like yourself had those who bash had instead contributed something useful. I can assure you that the vast majority of growers I've met over the years are all about teaching and advancing cannabis not putting people down specially when they have no clue what they're saying and just flat out refuse to back it up. Where have you seen any of them back up what they're saying. With the one exception of the Dr, none have offered dick to any of you wanting to learn. There is a saying "don't let your mouth write any checks your ass can't cash" that of course is meant for men. When weak people want to feel strong they have a tendency to get bullet proof. but of course only when they don't have to let anyone know who they are. Not one would say this shit to my face I promise you that. Disrespecting a 6'6" 275lb man to his face is a little harder then doing it to their back which is the same thing as doing it under a false ID. Just a variation of little man syndrome.

So what is "YOUR" right size clone? It's different for everyone. Technically you can cut your plant back as much as you want. The more you chop the more stress it. Prune it back correctly so that you promote continued growth. Make sure your cola is able to split and continue new growth. I would give your plant just enough time to see new growth in critical areas. You'll probably be fine. A shot of thrive alive is never a bad thing. Also, coneder how long it would take to clone and reach the desired hieght. I prefer a new plant over one that has been cut back to fit.

Now thats what im talking about. Yeah prof mj I been growing for almost 2 yrs now I just couldnt grow bigger due to funds but thats my issue I cant think of much to say because Im not that advance but I would appreciate if you can just throw some knowledge out because you give out the best info on riu around so far I remeber when al b fuct was on here and a few others that was real cool and smart that took the time to help others Thanks bro I appreciate your time.

 

[dostrander]

Hey Professor, I don't give a rats ass what the haters say. I just wish you were my neighbor!