How Dark is Dark Enough? Darkness level requirements for plants with Dr. Bruce Bugbee
96K views · May 3, 2022 · Science & Technology
Comments · 275
@TheUnholyPosole · 4 years ago
Whenever I want to initiate darkness for my plants, I just show them the news.
73
@racebiketuner · 4 years ago
Dr. Bruce Bugbee, the rock star of photobiology!
58
@nomecisto7200 · 4 years ago
Dr Bugbee is just simply amazing at his job. It's like watching a beaver build a dam, he was born to do this.
44
@Clyde_Hyde · 4 years ago
Amongst the brightest minds in the growing world. Thank you doctor.
17
@danrobinet1785 · 4 years ago
Thank you for making this available to everyone! As always, awesome presentation!
60
@pops8975 · 4 years ago
Congrats Paul!!! Everyone appreciates your hard work and devotion to this research!
13
@bulbaboi420 · 4 years ago
This is the kind of research we need more of. Keep up the great work, man!
38
@dertythegrower · 4 years ago
Major protip about green lights in the grow rooms at <a href="https://www.youtube.com/watch?v=5KSLG9heBe0&t=1465">24:25</a><br>🧠
7
@dertythegrower · 4 years ago
Thank you for the work, Bruce 🙏
7
@Albopepper · 3 years ago
This is great info Dr Bugbee! I have a hypothesis about green photons. As you've noted, they penetrate deeper into plant tissues. I propose that those photons bounce around hitting various organelles within the cells until their energy state degrades. In other words, they eventually turn red and then get scooped up for photosynthesis, etc.. It's similar to the way blue photons pass through a phosphor coating and turn green.
8
@CharlesLaBuhn · 2 years ago
YOU SAVED MY ENTIRE CROP OF 8 PLANTS FROM RQS COMPANY. This is my first grow and I knew about the light during budding thing. What I did not put together was that my "Clone Room" (bathroom lol) and my Kitchen were pointed directly at the plants. They stopped EVERYTHING and after I watched this I went out to see how dark it was. It wasnt. I turned them off and after only 4 days they are doing GREAT! THANK YOU!!!!!!
2
@johnsinger4244 · 1 month ago
this guy is so underrated. i notice everything i ever watch. always catches up with the cannabis community 3 years later... so i just watch everything he puts out lol
Up next

Cannabis Grow Lighting Myths and FAQs with Dr. Bruce Bugbee
Apogee Instruments Inc. · 3.2M views

Toward an Optimal Spectral Quality for Plant Growth and Development
Apogee Instruments Inc. · 551K views

Is PAR really 400-700 nm? The McCree Curve Revisited with evidence ePAR should be the new standard.
Apogee Instruments Inc. · 28K views

Bruce Bugbee: Indoor hemp production
Cornell SIPS · 401K views

The Power of Photobiology Metrics and Plant Growth with Dr. Bugbee
Apogee Instruments Inc. · 19K views

Chance Favors the Prepared Mind with Dr. Bugbee
Apogee Instruments Inc. · 16K views

PAR, PPF, PPFD, and PFD Explained
Apogee Instruments Inc. · 95K views

Turning Photons Into Food
Apogee Instruments Inc. · 97K views

House Plant Light Reviews with Dr. Bruce Bugbee
Apogee Instruments Inc. · 14K views

Predicting Stem Elongation and Leaf Expansion: Percent far-red is a better predictor than PPE
Apogee Instruments Inc. · 72K views

How Ultraviolet Radiation Affects Plants with Dr. Bruce Bugbee
Apogee Instruments Inc. · 77K views

Precision Photon Delivery Systems with Dr Bruce Bugbee and Dr Marc van Iersel
Apogee Instruments Inc. · 8.5K views

Dr. Bruce Bugbee: Debunking Cannabis Myths
Cannabis Equipment News · 139K views

Far-red: The Forgotten Photons
Apogee Instruments Inc. · 233K views

Photobiology Simplified with Dr Bruce Bugbee
Apogee Instruments Inc. · 35K views

Bruce Bugbee: The physics of farming without sunlight
Cornell SIPS · 8.3K views

The New 400-750 nm ePAR Range Explained with Dr. Bruce Bugbee
Apogee Instruments Inc. · 72K views

The Professor Who Taught People How To Think (1962)
ABC Science and ABC Australia · 2.9M views

Bruce Bugbee Series – Effects of Flushing
Athena Ag · 74K views

Why do I need a PAR/Quantum Meter?
Apogee Instruments Inc. · 47K views

Why Evolution Split Your Brain In Half – Brain Asymmetry with Jim Al-Khalili
Unbaffled with Jim Al-Khalili · 781K views

2024 LightSym Keynote (Re-recorded)
Apogee Instruments Inc. · 7.1K views

Bruce Bugbee Series – High Levels of Phosphorus
Athena Ag · 35K views

Bruce Bugbee Series – Effects of Potassium Silicate
Athena Ag · 45K views

Bruce Bugbee Series – UV & IR
Athena Ag · 24K views

Air Temperature and Humidity - Principles of Environmental Measurement Lecture 1
Apogee Instruments Inc. · 59K views