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00:00 Opening 

00:30 Shout out to Grodan, GreenBroz, HLG, Treez, and Athena Nutrients 

01:15 Introducing Philipp Matzneller 

03:15 A PhD from Humboldt (not THAT Humboldt)

05:42 First Job in Cannabis 

08:55 Canopy Management 

12:08 Effects of Canopy Management 

15:30 Physiological Factors 

18:30 Lighting Considerations 

19:40 Leaf Area Index Among Crops 

28:45 Rockwool Discussion 

30:07 Shout out to Grodan 

31:12 Shade Avoidance 

38:15 Source-Sink Relationship 

45:18 Shout out to Grodan 

47:14 Airflow 

52:17 Canna Cribs Consulting 

57:24 Data Collection 

01:03:54 Outro

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What’s in the interview? 

How long have you been working in Cannabis? You are writing a book chapter on Canopy Management, it’s not out yet, but we got a sneak peak. I’d love a basic primer on canopy management - How would you sum up the importance of proper canopy management and the effects it can have on your crop? What do people forget/get wrong/neglect when it comes to managing their canopy? What kind of factors need to be considered? Can you give us a brief rundown and then we can dig in a little deeper? Physiological Factors Light Interception Is a flat canopy enough? Leaf area Index What is it? Different for different plants? How do you measure it? What’s the best Leaf Area Index for cannabis? Shade Avoidance What is this? What is the overall impact on the plant? How does proper (or improper) canopy management affect the plant growth? Ultimately, a primary goal of canopy management is to increase yield and potency How else can canopy management benefit the final product? I came across something in my reading and I’d like to know more about the Source/Sink relationship? Does it differ during different stages of the plant life cycle? What is it and how does canopy management affect it? We’ve talked to a lot of growers about airflow, but it’s usually in the context of disease prevention, and I’ve not come across something quite as granular as you’ve written about. Can you explain the importance and then go more into detail about the boundary layer and how it’s thickness affects physiological processes? Is there any correlation between airflow and increased yield? Or is it ultimately about pest and disease prevention? As we wrap up, what are your goals with Canna Cribs Consulting? Are there any projects you have going currently that you’d like to tell us about? Is there anything we didn’t get a chance to discuss that you’d like to mention?