No doubt...and no annoying music droning in the background. Original ideas are sparse, and the ones that exist have been "Cloned" to the point of shutting off my sound and using close captioning, when/where possible.
Dr. Bugbee going above and beyond selling instruments in this service to community. Thank-you for explaining this, it is critical that we know it, and you care that we do.
He's selling ePar meters now and in a few years he'll change his mind re: UVB and Apogee will offer meters that measure the full range of Photobiologically Active Radiation (PbAR). 780nm is the lowest frequency of PbAR and 280 nm is the highest frequency.(The definition is that PbAR is the bands of frequencies that trigger and/or energize beneficial photo/phytochemical reactions.)
Me too, i am disapointed that he has all this knowledge and only now are we having the oportunity to have acess to it, at the same time im greatfull he is sharing it with us, the classroom/community is waiting for the next vid sir!
Thanks for this. I really like to see things broken down into their separate, quantified components. It lends clarity. I'm no stoner, I've battled PTSD for years, with limited results. I finally decided to try Cannabis, after getting a medicinal license. I have not slept so good in over a decade. It seems to eliminate my dreams, which I have had ONE good one in 15 years. I now intend to grow it along side our Hibiscus and Sugar Cane. I love the science behind it. Great job. Thanks again.
Uh your not a stoner? 😂 😂 There is a band called sevendust and they have a song called " denial ". 😂 Ya ought to check it out. You my friend are a stoner wether you want to admit to it or not.
@@davebryant8050 I'm not sorry but I do got to ask was you talking to yourself and then just happen to click onto my name by accident ? Where and what do you think you or your comment is even relevant to which comment if mine ? But you did happen to get one thing right, I do stay the f away from most people these days cause most of ya have your head so far up your own stinky asses that the stench is clogging your brains ability to transmit signals to your brains receptors any longer . A bunch of idiots wasting their god given brains thinking that the war on drugs is somehow a good idea for anyone other than those involved and whom profit from big prison business. For the rest of us in society it's a major drag . Then to say thc will never be accepted upon the masses? 😂 You must be in one of the slower to legalize states . 😂 You do realize that the legal so called better for you drugs kill and damage more people than all the illegal substances combined right? Tobacco and alcohol are by far more worse than especially THC/marijuana but can even be nastier than even heroin ! You foolish blind thing that let's other people use the brain that God gave you. Brainwashed idiot! You will find that there is a whole better world awaiting you to wake the f up over here . I would say a world with greener grass but I fortunately there is allot of work needed cause of all the braindead idiots like yourself has blocked the subs rays from lying dead asleep on the grasses . So wake up , get up , breathe on your own , and for God sake think on your own . Your God is shaking his head wondering why he gave people like you brains if your just gonna let others use it for you ! . F-ing dumbass
*Pauses* _ "Cannabis looks something like this" _ *Draws curve with affection and clearly shits on the lettuce curve* _ Tells us to "Look at this curve, look at that curve." twice _ Proceeds to a wholesome "Woow" _ Ends it all with "This is cannabis" _ *Writes it down with intent to kill* Hahaha these are awesome lectures! Thank you for sharing some knowledge in such an accessible way!
Because it's a lie. I was pulling 500g/m2 with ppfd 200 max. Now I'm at 800 and there's about 15% difference. The whole lecture was about waste of money.
This is the ultimate lecturer, someone who knows what he is delivering and is passionate about it. I could listen intently for hours, I just caught myself leaning into the monitor haha. This awesome content is right up my ally, thanks so much Bruce.
Great information, I would love to see a series on the individual environmental factors affecting growth for Cannabis. Thanks Dr. Bugbee, I miss being in the Crop Physiology Lab with our class. I've gladly paid thousands of dollars to Utah State for information this valuable, it's amazing to see it made free to the public. -Joe
Dr Bugbee, I have watched this video at least 5 times by now. I am 54 so it takes a bit more of an effort to remember than it would for me have 35 years ago. Thank you so much for making this information available.
This guy is such an effective teacher! Been trying to learn about this but I haven't found anything as in depth as this video. Worth watching till the end even if you already have the knowledge.
@@seanludeman4940Но есть и у него спорные вещи)))) Хотя послушать никому лишним не будет. Непогрешимых нет. Тот же Хорхе Сервантес, хоть для кого то икона непогрешимая. Но ошибался и он.
Like many of the other commentators, I also would love to see this made into a series of video seminars on plant physiology led by Dr. Bugbee. Since dialing in those parameters increases the amount of light these plants can use, and it would only build more renown and good will towards the Apogee brand, I would make the argument that developing this into a series would increase revenues for your company. Might we expect further videos along these lines? Glad to have the very informative video description. Not many channels use that section to full effect.
I've got to say, usually you go to the comment section of youtube and it's full of bad takes and negative comments, but when it comes to the educational grass videos, you get the best comment sections. I think that says something about the usefulness of this plant.
Revolutionizing how people see light and growing. Just in the past 3-4 years we’ve seen leaps and bounds in lighting technology and our understanding of it. Thank you for all the useful information!
This guy is my hero... He explains everything so well.. so much detail and has created the tool we ALL need... WE ALLLLL NEED.. because "12 inches from that canopy" (especially at 100% power) is just ridiculous.. and this guy has helped me save many plants from getting too many photons and burning away terps.. thanks Bruce Bugbee! Seriously, could have explaied any of this stuff any better.. i still come back to this video regularly to try and get all this stuff in. So important and useful
if your vpd is all spot on u can have lights at 10 to 12 inches away at 100%towards end of grow ,i use 2 x spiderfarmer 7000 1460 watts all up get no burning just very healthy plants with large yield
ikr i made this mistake when i switched from hps! My last run were bout 5ft+ but under the led lookin at 2ft max on a lone plant the rest are like 18 inches from bottom node to crown! Still managed to get them nice and dense but iv never ever seen a plant refuse to stretch like that b4! Thinking i might veg with them about 3ft 4ft away next time in the hope they stretch normally again lol never seen plants so short and dense ther like solid balls i mainlined topped and fimmed them several times though too so getting countless tops, i dont use a net but its kinda sog/scrog style just all verticals and budsites spread over the whole available area :) teach me to trust the internet in this day n age lol! Also tried n auto cos i was in a rush last time on internet advice they are "faster" 8weeks they said! Well thats BS too took 12 or 14! Was woody stemmed and rubbish even tho i did the recommended single tie down method and i coulda finished a normal one faster ffs! Wud hav been 10x nicer then too lol bloody advise everywhere is tellin amateurs to buy autos cos ther easier! Biggest lie ever way easier to set a timer!
@@benayers8622ya know I'm coming to the belief that autos are not as good and never will be as good as reg seeds.. even fem seeds have a range of potential problems and require extensive breeding to find stable genetics that won't herm under various stressors.
"That's a pretty fat line" - Bruce 17:50 All funny comments aside So glad someone is actually studying these topics for cannabis and sharing the knowledge! Looking forward to your next video on nutrients possibly?
This is what most companies need to be studying if they are going to produce lights for any horticulture use. All I see online in descriptions is the par foot print. They don't really say anything about DLI and alot of the stuff you talk about. Great video thank you for taking the time to make these.
Great Teacher. His teaching style is easy to understand and his explanation for different situations of growing was very interesting. Thank you again for your hard work & research on this topic. I learned a lot on this episode. Happy Growing ✌️🌎
I like how he doesn’t overcomplicate the subject whilst still getting his points across. I wish my science teachers at school had been like this. I think most of them just liked the sound of their own voice
Thank you for putting collegiate level information out into open source availability for easy access. I am ever so grateful for your up to date information.
Hi, I am a gardener in my small farm at Lanzarote, for two or three years now and I really appreciate your work, Doctor, very valuable information. Thank you very much and good luck to all
Very interesting . Ive read a lot online about 800umols being the sweet spot and anything over 1200 slowing down plant growth . If however midday sun is 2000 and the graph drawn at 15:30 is accurate which i trust it is then people are hugely under lighting their plants.
And still the answer is “Get to work!” Always been a case of any and all light must be put to work immediately and kept working constantly. Where this research comes into play is with the development of new technology, and that new technology is still not justified by the good old retail cost / agricultural benefit ratio... So again any old timer will tell you what you need to know. “Get to work!”
Fluctuation predominate in leaf width and genetics indica. Wide leaves absorb more shorter growing season vs sativa narrow leaf intense light long growing season
Wow...excellent breakdown of light and photosynthesis!! Thnx for clarifying so much...as a noob grower, sorting through the clutter of info is key. This really helps...subbed
I always thought I was a horrible learner then I realized recently at 30 years old with ADHD that the teachers were just way too slow. Literally just going to 1.5 speed made this so much easier to follow and keep focusing.
Great video and super instructive. I learned a lot. I've got a few questions though: 1. Is there a graph that you can link to that shows the PPFD curve for different vegetables and what their optimal PPFD would be? I'm thinking of collard, kale, spinach, cayenne, tomatoes, cucumbers, etc. 2. You mentioned that lettuce is done at 500 PPFD. But for how many hours a day? For example, if it was 12 hours per day that would be 21.6 DLI (daily light integral), and if it's 18 hours it would be 32.4 DLI. Do you have a link to graphs that show the required DLI (which seems more important than PPFD since it measures total daily light) for different vegetables? 3. If I wanted to lower my costs, and go with a less powerful light, like the first one you showed which was providing 300 PPFD at 1ft, and just run it for more hours in the day to increase the DLI, what is the minimum amount of rest/dark time required for vegetables so they stay healthy? I'm assuming I can't run it 24x7 as the plants need some down time.
3. C3 plants don’t need down time. C4 plants do. C4 plants store CO2 during dark hours which allows it to retain more water by limiting how much the stomata opens. Plants that live in extreme conditions, like arid climates, are C4 type plants.
In other words cannabis grows just fine 24hrs a day, you could give it 8 hours of rest once every week if you realy wanted. I find that in veg, they grow so much I end up chopping parts of just to keep them small enough for my tent, remember they triple in size once they go into flowering if you have a decent lights, such as 1200 watts, I use a 600watt hps plus 3 x 200 watt LEDS. Means I can switch off the HPS on hot summer days, and get extra fast growth the rest of the time, plus use a parrafin heater for the co2, youll not regret it as long as yoy keep VPD below 2.2 most of the time, and below 1.4 at night.
Great video, thank you! I must say there is still much debate to be had on the issue of spectral impacts to cannabinoid content. I suspect FR:R ratios may play a larger role than overall "PAR" spectrum. I welcome the day we start quantifying based on total radiation biologically utilized in the plant. We need more educators to reach out through platforms like this... I can say my Apogee SP-420 is within arm's reach and has become one of the most useful tools even around the house. Absolutely essential in horticultural consulting to have a meter from Apogee or LiCor
That's incorrect. UV-B output on CMH is laughable because UV-B is blocked by glass. It's about 1/10 of a sun which is not enough. You need UV-B (mercury) bulbs to get some real output.
I bought a "chinese" one at 15 USD two years ago , I've compared it with reputable factory bulb light values it was same , & my médicine grows perfect ! ,for the price you Don't expect light Spectrum analysis on your cell phone but it's a good start to be sure plants dont get too much or too low enlightment !!!
@@jayschaufele7685 ""We don't have evidence that changing light colors of light makes a significant difference on cannabinoid synthesis." " read again ;)
This is simply amazing how one can use science to get the best yeld possible. There's a lot of misinformation about cannabis growing and this guy just made it so easy to understand that I feel like spreading this information in my country! Thank u so much!
Finally, a grow video that doesn't start with
" heyyy whaaaaats uuuuupp yooooo tuuube!"
No doubt...and no annoying music droning in the background. Original ideas are sparse, and the ones that exist have been "Cloned" to the point of shutting off my sound and using close captioning, when/where possible.
And...he didn't point to the bottom of the screen and mumble something about "...down below."
DUDE!
Somehow I'm writing this comment without being told I can leave a comment.
AMEN!!
As a first time grower, these types of videos have been more informing than any grow guide because of the detail of certain aspects.
German?
I never thought I'd pay this much attention in school. Well played.
Finally, someone that knows wtf they're talking about. Thank you.
Wow, Dr. Bugbee motivated me to study something in my life after being lack of motivation for years. Thank you so much. I loved the video.
how did it go?
Sir it was a honor to get this lesson from you, thanks for your contribution of actually GOOD information on youtube.
Dr. Bugbee going above and beyond selling instruments in this service to community. Thank-you for explaining this, it is critical that we know it, and you care that we do.
Dr. Bugbee may be getting a little something out of this. Please, I don't begrudge him in the least for making an honest buck on the backside.
He's selling ePar meters now and in a few years he'll change his mind re: UVB and Apogee will offer meters that measure the full range of Photobiologically Active Radiation (PbAR). 780nm is the lowest frequency of PbAR and 280 nm is the highest frequency.(The definition is that PbAR is the bands of frequencies that trigger and/or energize beneficial photo/phytochemical reactions.)
@@chipfriday9967 i❤ooloollo
❤oo
I'll be the first to say yes please to talks on the other 8 parameters in regards to cannabis! Thanks for putting out such useful information.
Me too! right after I finished this one I went looking for the 8 part breakdown and was disappointed when I saw this was uploaded 2 days ago
Looking forward to the rest of this series! Very informative
Me too, i am disapointed that he has all this knowledge and only now are we having the oportunity to have acess to it, at the same time im greatfull he is sharing it with us, the classroom/community is waiting for the next vid sir!
i'll second that!
:-)
"When you see this once, you'll never forget it!"
This guy obviously doesn't know me very well, does he 😁
Thanks for this. I really like to see things broken down into their separate, quantified components. It lends clarity. I'm no stoner, I've battled PTSD for years, with limited results. I finally decided to try Cannabis, after getting a medicinal license. I have not slept so good in over a decade. It seems to eliminate my dreams, which I have had ONE good one in 15 years. I now intend to grow it along side our Hibiscus and Sugar Cane. I love the science behind it. Great job. Thanks again.
Uh your not a stoner? 😂 😂 There is a band called sevendust and they have a song called " denial ". 😂 Ya ought to check it out.
You my friend are a stoner wether you want to admit to it or not.
Not dreaming is not a good sign , REM sleep releases the human growth hormone that repairs damage
@@davebryant8050 I'm not sorry but I do got to ask was you talking to yourself and then just happen to click onto my name by accident ? Where and what do you think you or your comment is even relevant to which comment if mine ? But you did happen to get one thing right, I do stay the f away from most people these days cause most of ya have your head so far up your own stinky asses that the stench is clogging your brains ability to transmit signals to your brains receptors any longer . A bunch of idiots wasting their god given brains thinking that the war on drugs is somehow a good idea for anyone other than those involved and whom profit from big prison business. For the rest of us in society it's a major drag . Then to say thc will never be accepted upon the masses? 😂 You must be in one of the slower to legalize states . 😂 You do realize that the legal so called better for you drugs kill and damage more people than all the illegal substances combined right? Tobacco and alcohol are by far more worse than especially THC/marijuana but can even be nastier than even heroin ! You foolish blind thing that let's other people use the brain that God gave you. Brainwashed idiot! You will find that there is a whole better world awaiting you to wake the f up over here . I would say a world with greener grass but I fortunately there is allot of work needed cause of all the braindead idiots like yourself has blocked the subs rays from lying dead asleep on the grasses . So wake up , get up , breathe on your own , and for God sake think on your own . Your God is shaking his head wondering why he gave people like you brains if your just gonna let others use it for you ! . F-ing dumbass
@@benwinter2420 Its great when the alternative is terror and years of sleep deprivation!
Ikr!! 🤣🤣🤯@@ExquisiteTouch.M.M.P
Sure would appreciate seeing all the other 8 of the 9 cardinal element modules, specifically for this plant. Thanks for all your work Bruce.
Maximizing Cannabis Yields with Dr Bruce Bugbee
He has covered it in several videos but the titles are not always clear on the topic.
When somebody has a doctorate and looks like my stepfather starts talking about cannabis I open my ears and shut up and pay attention!
Mandela Effected You got that shit right
lol that is exactly what I was thinking when this video popped up and why I clicked on it
What you said!
lol! my thoughts exactly when I fired it up. "oh shit, this guy knows something. I better pay attention"
he absolutely knows his s***
The weed that this guy grows makes you permanently high.
LoL, that cracked me up.
Lol
I would be ok with that.
Sounds like what I've been searching for.
you just open the box and you get high through osmosis
*Pauses* _ "Cannabis looks something like this" _ *Draws curve with affection and clearly shits on the lettuce curve* _ Tells us to "Look at this curve, look at that curve." twice _ Proceeds to a wholesome "Woow" _ Ends it all with "This is cannabis" _ *Writes it down with intent to kill* Hahaha these are awesome lectures! Thank you for sharing some knowledge in such an accessible way!
No doubt. These videos actually keep me captivated and are truly food for thought.
Because it's a lie. I was pulling 500g/m2 with ppfd 200 max. Now I'm at 800 and there's about 15% difference. The whole lecture was about waste of money.
@@LiteralHitter any difference in quality?
@@rickw7903 Perhaps so but you will still fall
This is the ultimate lecturer, someone who knows what he is delivering and is passionate about it. I could listen intently for hours, I just caught myself leaning into the monitor haha.
This awesome content is right up my ally, thanks so much Bruce.
Genius. Seriously. I've been a light gardener of all things legal for 35 years and I'm blown away.
Great information, I would love to see a series on the individual environmental factors affecting growth for Cannabis. Thanks Dr. Bugbee, I miss being in the Crop Physiology Lab with our class. I've gladly paid thousands of dollars to Utah State for information this valuable, it's amazing to see it made free to the public.
-Joe
I've been growing for 10 years and the minute this video started playing I was watching the screen like a kid sitting in the front row.
question is did it change your grow?
Nah he still growin mids 😶😐🙂🙃😆🤣😅
Lol jp idk wtf he
When the student is ready the Master appears.
Lowkey needed this lol Preciate u🤙🏿
Sounds like Wisdom to me 🤔
🤣🤣🤣
Aaamen...!!!
When the student is really ready the master disappears
After watching all of his videos I feel like I should be getting some kind of certificate or degree in the mail 😂
I know I feel like I’m in class, wearing my glasses and writing down notes.
Maybe a certificate but certainly not a degree.
Your certificate will be printed on Hemp paper.
Indeed
What's your addy!??
Dr Bugbee, I have watched this video at least 5 times by now. I am 54 so it takes a bit more of an effort to remember than it would for me have 35 years ago.
Thank you so much for making this information available.
Thank you for sharing your knowledge, we can learn in a week what took a lifetime to study
well said
? a week what you got dial up or something lol it only takes 44.11 mins
He said it took one year to study lmao noob
This guy is such an effective teacher! Been trying to learn about this but I haven't found anything as in depth as this video. Worth watching till the end even if you already have the knowledge.
He has several others on here so if you liked this watch the other content too!
He really is a fantastic teacher
@@seanludeman4940Но есть и у него спорные вещи)))) Хотя послушать никому лишним не будет. Непогрешимых нет. Тот же Хорхе Сервантес, хоть для кого то икона непогрешимая. Но ошибался и он.
@@АлександрП-и3щ What has he said that's controversial? Everything he teaches is rooted in science. It's all tested and peer-reviewed.
Thanks Doc ....give him a pay raise I wasn't confused during his lecture at all.
I need this man's whole lesson on cannabis. This guy is amazing at explaining this.
He does a class every year for intermediate to expert frowers
man i feel good pushing a DLI of >86 in my concrete walled pantry (2300umol), no CO2, just love, mostly thanks to Bruce and Harley!
cheers fellas
Like many of the other commentators, I also would love to see this made into a series of video seminars on plant physiology led by Dr. Bugbee.
Since dialing in those parameters increases the amount of light these plants can use, and it would only build more renown and good will towards the Apogee brand, I would make the argument that developing this into a series would increase revenues for your company.
Might we expect further videos along these lines?
Glad to have the very informative video description. Not many channels use that section to full effect.
I've got to say, usually you go to the comment section of youtube and it's full of bad takes and negative comments, but when it comes to the educational grass videos, you get the best comment sections. I think that says something about the usefulness of this plant.
So far this has been my favorite video related to cannabis growing. Thank you for the knowledge!
Revolutionizing how people see light and growing.
Just in the past 3-4 years we’ve seen leaps and bounds in lighting technology and our understanding of it. Thank you for all the useful information!
Not really.
This guy is my hero... He explains everything so well.. so much detail and has created the tool we ALL need... WE ALLLLL NEED.. because "12 inches from that canopy" (especially at 100% power) is just ridiculous.. and this guy has helped me save many plants from getting too many photons and burning away terps.. thanks Bruce Bugbee! Seriously, could have explaied any of this stuff any better.. i still come back to this video regularly to try and get all this stuff in. So important and useful
It’s a great resource of knowledge that’s forsure
if your vpd is all spot on u can have lights at 10 to 12 inches away at 100%towards end of grow ,i use 2 x spiderfarmer 7000 1460 watts all up get no burning just very healthy plants with large yield
ikr i made this mistake when i switched from hps! My last run were bout 5ft+ but under the led lookin at 2ft max on a lone plant the rest are like 18 inches from bottom node to crown! Still managed to get them nice and dense but iv never ever seen a plant refuse to stretch like that b4! Thinking i might veg with them about 3ft 4ft away next time in the hope they stretch normally again lol never seen plants so short and dense ther like solid balls i mainlined topped and fimmed them several times though too so getting countless tops, i dont use a net but its kinda sog/scrog style just all verticals and budsites spread over the whole available area :) teach me to trust the internet in this day n age lol! Also tried n auto cos i was in a rush last time on internet advice they are "faster" 8weeks they said! Well thats BS too took 12 or 14! Was woody stemmed and rubbish even tho i did the recommended single tie down method and i coulda finished a normal one faster ffs! Wud hav been 10x nicer then too lol bloody advise everywhere is tellin amateurs to buy autos cos ther easier! Biggest lie ever way easier to set a timer!
@@benayers8622ya know I'm coming to the belief that autos are not as good and never will be as good as reg seeds.. even fem seeds have a range of potential problems and require extensive breeding to find stable genetics that won't herm under various stressors.
This makes me feel like I'm back in 🏫... This time I just don't want the bell to ring no time soon.great teachings sir...
Finally someone who presents the basics right.
"That's a pretty fat line" - Bruce 17:50
All funny comments aside
So glad someone is actually studying these topics for cannabis and sharing the knowledge!
Looking forward to your next video on nutrients possibly?
medicinal nose candy..
I was just watching and started laughing my ass off. I had to go check the comments before I finished the video. lol
Note: you can use this information to grow any plant
...bc at 17:20 you can see that smaller ones are more common
This is what most companies need to be studying if they are going to produce lights for any horticulture use. All I see online in descriptions is the par foot print. They don't really say anything about DLI and alot of the stuff you talk about. Great video thank you for taking the time to make these.
Great Teacher. His teaching style is easy to understand and his explanation for different situations of growing was very interesting. Thank you again for your hard work & research on this topic. I learned a lot on this episode. Happy Growing ✌️🌎
This video was true pleasure. Thank you, more knowledge here than 10 hours of self study 🔥🇿🇦
I'm going to a college for some vocational skills. And just watching this video makes me miss having a GOOD TEACHER
Thank you for the best video UA-cam has to offer on this topic! Your students are lucky to have you as a professor!
I like how he doesn’t overcomplicate the subject whilst still getting his points across. I wish my science teachers at school had been like this. I think most of them just liked the sound of their own voice
I rarely subscribe...I didn't hesitate to subscribe after watching about a minute of this professor.
"light quality does not have a huge effect on the ratio of cannabinoids"
Very good video, amazing stuff
I never thought of so many fundamentals for this piece for a good production.
Really the study and maximum information is essential.
Thanks.
the Bob Ross of how to better grow cannabis.
thank you for helping me understand my happy little trees better.🌳🌳🌳
I've watched this video about 5 times and intend to do so again. Absolutely invaluable education.
Thank you for putting collegiate level information out into open source availability for easy access. I am ever so grateful for your up to date information.
Excellent lecture! I learned so much -- you have an astounding talent as an educator. Thank you!
17:46 He Knows What He Talking About.
Brilliant and thorough at a steady jogging pace. I could listen to Dr. Bruce Bugbee all week! Thank you.
Download this before the lesson is gone this dude knows what he's talking about!
@Grow Tent Tomatoes how do I download it?
@@orion9k lol hes stoned
This is the best video I've seen on this. No stoner BS just the info
"Thats a pretty fat line" took the words right out of my mouth 😂
Thank you. I downloaded a light meter app and checked my plants. I just finished raised and now all the same. 12" makes a difference.
thank you everyone who made this possible!
i dont even grow cannabis , im just watching this for the science lol
Hi, I am a gardener in my small farm at Lanzarote, for two or three years now and I really appreciate your work, Doctor, very valuable information. Thank you very much and good luck to all
Wow one of the best lectures I've had that I didn't have to pay for. Truly incredible!
everything as clear as water, amazing lesson, amazing teacher!!
Very interesting . Ive read a lot online about 800umols being the sweet spot and anything over 1200 slowing down plant growth . If however midday sun is 2000 and the graph drawn at 15:30 is accurate which i trust it is then people are hugely under lighting their plants.
And still the answer is
“Get to work!”
Always been a case of any and all light must be put to work immediately and kept working constantly.
Where this research comes into play is with the development of new technology, and that new technology is still not justified by the good old retail cost / agricultural benefit ratio...
So again any old timer will tell you what you need to know.
“Get to work!”
Thank you Sir. To find a lesson from a man of your credentials is indeed a treat! Your knowledge is invaluable to me.
This has been the most educational video I've watched on cannabis cultivation. Thank you for sharing this!
I wonder how much the measurements fluctuate between strains.
Fluctuation predominate in leaf width and genetics indica. Wide leaves absorb more shorter growing season vs sativa narrow leaf intense light long growing season
Hey Bruce! Great videos you have been putting out lately. Keep it up, the industry thanks you.
Watching after seeing your story 😂🤙
Bro thanks for sharing this on i.g. just a bunch of amazing information. Looks like I'm investing in the apogee meter lol💯🔥💯
I like hearing a logical dissertation of lighting. Too many stoners disseminating bogus half baked info.
Dr. Bugbee is such a nice person to listen to. Thx for the great video! Very informative!
Well thanks, UA-cam for suggesting me this video and congratulations on the quality of the content.
Wow...excellent breakdown of light and photosynthesis!! Thnx for clarifying so much...as a noob grower, sorting through the clutter of info is key. This really helps...subbed
Im gonna buy a mexican candle and put this mans picture on it. God bless
I have my Zoom biology professor on mute in the background and am watching this instead haha!
😂
@mister poopies leave me alone mr poopies I got a B. terrible comment! terrible person
You're a great teacher, I completely understand everything you discussed and I haven't been to school in over 40 years
I always thought I was a horrible learner then I realized recently at 30 years old with ADHD that the teachers were just way too slow. Literally just going to 1.5 speed made this so much easier to follow and keep focusing.
Love the video, I'll be watching all I can find. 👍👍
Great breakdown and delivery of the info.
You are an amazing teacher mr.bee.
Thank you for sharing your experience and knowledge. It is appreciated
Best 44 min advert I have ever seen! Thank you Apogee of valuing your future customers time. Thank you Prof. Bugbee! ...Love your last name : )
brilliant teaching and delivery. good to see a normal human. Well done sir
I love how they did this on hemp and not some other c4 plant
Great video and super instructive. I learned a lot. I've got a few questions though:
1. Is there a graph that you can link to that shows the PPFD curve for different vegetables and what their optimal PPFD would be? I'm thinking of collard, kale, spinach, cayenne, tomatoes, cucumbers, etc.
2. You mentioned that lettuce is done at 500 PPFD. But for how many hours a day? For example, if it was 12 hours per day that would be 21.6 DLI (daily light integral), and if it's 18 hours it would be 32.4 DLI. Do you have a link to graphs that show the required DLI (which seems more important than PPFD since it measures total daily light) for different vegetables?
3. If I wanted to lower my costs, and go with a less powerful light, like the first one you showed which was providing 300 PPFD at 1ft, and just run it for more hours in the day to increase the DLI, what is the minimum amount of rest/dark time required for vegetables so they stay healthy? I'm assuming I can't run it 24x7 as the plants need some down time.
3. C3 plants don’t need down time. C4 plants do. C4 plants store CO2 during dark hours which allows it to retain more water by limiting how much the stomata opens.
Plants that live in extreme conditions, like arid climates, are C4 type plants.
In other words cannabis grows just fine 24hrs a day, you could give it 8 hours of rest once every week if you realy wanted. I find that in veg, they grow so much I end up chopping parts of just to keep them small enough for my tent, remember they triple in size once they go into flowering if you have a decent lights, such as 1200 watts, I use a 600watt hps plus 3 x 200 watt LEDS. Means I can switch off the HPS on hot summer days, and get extra fast growth the rest of the time, plus use a parrafin heater for the co2, youll not regret it as long as yoy keep VPD below 2.2 most of the time, and below 1.4 at night.
Thank you for taking the time and effort to make and post this video. This is clearly presented and has useful information, it is appreciated.
The video we all needed. Somebody give this gentleman a raise!
Thank you from 2024.
Good job. Lots of info easily explained. Alot needs to watch these 👍
Great video, thank you! I must say there is still much debate to be had on the issue of spectral impacts to cannabinoid content. I suspect FR:R ratios may play a larger role than overall "PAR" spectrum. I welcome the day we start quantifying based on total radiation biologically utilized in the plant.
We need more educators to reach out through platforms like this... I can say my Apogee SP-420 is within arm's reach and has become one of the most useful tools even around the house. Absolutely essential in horticultural consulting to have a meter from Apogee or LiCor
Your 44 minute lecture went a long way to explain the problems I've been having
Loved and described
So well presented, so full of information, so good! Thank you Dr. Bruce!
This is amazing, thank you.
Thanks for the information, can't wait to see what uv and fr do for maritomatoes
Lmao, that maritomatoes reference tho lmfao
UV will kill plant tissue in a few hours. Even just a 12w bulb. Works good to sterilize a reservoir If its submersible. Do not look at UV lights.
Use CMH lighting and you will get all the UV needed.
That's incorrect. UV-B output on CMH is laughable because UV-B is blocked by glass. It's about 1/10 of a sun which is not enough. You need UV-B (mercury) bulbs to get some real output.
Is it a good idea to leave your plants in an extended period of darkness before harvest? Thanks in advance for taking the time to respond.
he did say theres no evidence of needing sunrise/sunset so maybe its normal to just keep the night and day cycle until harvest but id like to know too
ask to see his garden
Question to simulate spring what's the measurement for optimal light for veg is there a measurement for veg ?
I literally thought this dude was about to explain how to light a joint for 45 minutes...😁
Pending who rolled it... 45 mins could help you out.
i think that maybe you have to watch the whole series to fully appreciate the joint/joule equation , I would suggest SUBBSCRIBE.
i wonder if he will do a graph to work out joules to micro moules to heat to distance plus time to light a joint using a light
Is that using matches vs lighter???
Doc, thanks for vid..
It just so expensive but I understand its quality.. maybe one day I’ll be able to afford an apogee meter
I bought a "chinese" one at 15 USD two years ago , I've compared it with reputable factory bulb light values it was same , & my médicine grows perfect ! ,for the price you Don't expect light Spectrum analysis on your cell phone but it's a good start to be sure plants dont get too much or too low enlightment !!!
Use a phone app!
"We don't have evidence that changing light colors of light makes a significant difference on cannabinoid synthesis." He says this at about 33:30
I love these little chats professor.. They only make me BETTER.. I SEE IT!! THANK YOU.
@@steveletson6616 sounds like he understood it perfectly well - what's your problem with the statement?
@@steveletson6616 ok, then explain it :)
Hps is red heavy. That make bus grow bigger the mh bulbs. Mh bulbs are blue heavy. They are great for veg stage. So color totally matter.
@@jayschaufele7685 ""We don't have evidence that changing light colors of light makes a significant difference on cannabinoid synthesis." "
read again ;)
what about the red and blue lights from aliexpress are they enough?
Who doesnt LOVE this guy?!!
Fascinating 🌱 agriculturally 💡
15:21 you can grow lettuce faster!
This is brilliant
I have used the flavor chamber with spe Spearmint and peppermint 😊
This is simply amazing how one can use science to get the best yeld possible. There's a lot of misinformation about cannabis growing and this guy just made it so easy to understand that I feel like spreading this information in my country! Thank u so much!
i got some new stuff to say at work to make me sound smart.
While I was watching this I bought a quantum PAR meter, ouch.
A photon is a QUATUM of light... You were not so wrong, dude !
Me too, ouch