Toward an Optimal Spectral Quality for Plant Growth and Development

I think you’re my new hero. To hear someone actually give credit to those who helped rather than I, I, me, me, me is great. Thanks.

Thank you for making these video classes available for free online! I always learn so many new things listening to Dr. Bugbee. Each video is a wealth of new information to absorb.

I could watch Bruce's videos over and over and never get bored. He is a great teacher in this field and I have learned a lot from every video. Very thankful for all the info, it is priceless.

Dr Bruce kicks ass. I wish I was back in school with a teacher like this guy, I think I might have actually listened in class.

Dr Bugbee, you are a natural teacher and found your niche, we all here can digest all your data with ease. You the man, and master of your craft. Tip of the hat to you kind sir.

Many thanks and much respect to all of the scientists involved, for their time, research, and the knowledge shared. Absolutely Appreciated...

Dr Bugbee's lessons are amazing. Thank you for posting these videos

Amazing scientific and practical presentation.Tip the hat for you and your colleagues . Full respect for you our dear professor, GOD bless you

Some of the best light video content in YT. Thank you.

In just two videos you just completely shattered my whole (quasi) knowledge of how grow lights work that I gathered ober the years. Not only that, but you gave me completely new foundation to learn more on that topic. Thank you!

Thank you Dr. Bugbee. I learned more from your simple yet very comprehensive explanation.

Thank you for the amazing content it's definitely the best explained video I've ever seen about how plants grow. I'm trying to watch every single video :D

“Best fertilizer is the steps of a farmer” GOLDEN!! New to the channel, love the great information! Thanks!

I would LOVE to see some similarly represented data as those blue photon % slides but for UVA, very insightful video.

This Man is a Master in his field of study. Thank You Sensei ..

Excellent lecture. Thanks for sharing your wealth of knowledge online. I wish I had such opportunities some 50 years ago.

As a working data scientist / gis analyst, amateur astronomer turned indoor farmer, this data is invaluable. Thank you. As scientists, you do not need to advocate for people to change to a new weighted curve. Science dictates to us all that our opinion changes with the evidence presented. Anecdotally, I have only seen results in my own crops that would agree with what you are saying (I run 445nm and "Emerson Strips" of 660nm / 730nm blend for synergy mixed with all sorts of white cct). Introducing UVA and B in flower/bloom definitely appears to trigger a protection response. Thank you again for your hard work.

This man is a legend to home growers. Way better than the bro science you get on growing forums. And the fact he a dr./scientist and seems a little batshit crazy like einstein is just the icing on the cake

When I was in school in the 70's and 80's, I didn't care about this stuff...I had the sun to grow my cannabis. Now that I'm in my 50's and I have these awesome LEDs available, I am sponging up this information like mad.

Completely unbelievable, I mean I believe it all, that's what's unbelievable. You are one of the best "instructors" I have ever had the pleasure to listen to and learn from! Boy I wish you was my uncle, we would be buddies for sure! I don't know if it would be fair to ask or an insult but do you grow your own personal cannabis? If you don't you really should :-), As well I would probably pay just to see photos of the plants you "create". To use the word grow would be an insult! Hats off to you professor! Please don't stop doing what you do.