☁️VPD Misconceptions, Transpiration, and Ideal Environment, with Dr. Coco
GrowCast
GrowCast Podcast
4.7 • 599 Ratings
🗓️ 1 January 2024
⏱️ 49 minutes
🧾️ Download transcript
Summary
Good friend of the show Dr. Coco is BACK! This time he's on the line for a deep dive exploration of vapor pressure deficit. Coco recaps what VPD really is- an environmental metric of how "thirsty" the air is. This leads to a conversation about ideal VPD range charts, and how the charts give you a guideline to follow, but no specific instructions on how or why to achieve specific VPD in veg and flower. Coco reiterates that temperature is king, and you should never sacrifice optimal temperature in order to achieve specific VPD levels. The conversation turns towards what's happening to those trichomes on a micro level, with the pressure deficit or "vaccum" affecting how the plant transpires, grows, feeds, and maybe even how it dries and cures. The two wrap up the show by talking about the upcoming new years grow challenge, and the cloning side challenge where people are taking their best, biggest, and smallest clones.
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Transcript
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| 0:00.0 | Greetings cultivators from around the world. Jordan River here back at you with more |
| 0:03.3 | growcast. I'm an island boy now. Today we have Dr. Coco back on the line. Good friend of the show. |
| 0:10.4 | He's here to revisit vapor pressure deficit. That's right. We went into it last episode, |
| 0:15.8 | but this time we're diving deep. This is 45 minutes straight on VPD, what it's actually good for, how it's misunderstood, |
| 0:24.0 | and how it can be a bit of a red herring to some growers. |
| 0:26.9 | It's a great episode. |
| 0:28.1 | I hope you learn a lot. |
| 0:29.1 | I know you will. |
| 0:29.9 | Before we get into it with Dr. Coco, though, shout out to AC Infinity. |
| 0:34.5 | My favorite growgear manufacturers, ACinfinity.com, always use code Growcast 15. |
| 0:40.3 | Grab yourself a new tent, a new light. Grab yourself a grow kit. Expand that grow room. |
| 0:45.4 | Get that veg tent going so you can do some staggered runs. Code Growcast 15 works on all the products at |
| 0:51.4 | AC Infinity and the grow kits, which come with everything you need |
| 0:54.3 | to get started growing. Of course, AC Infinity makes amazing, durable tents. They make the best |
| 0:59.3 | oscillating and inline fans in the game. They make grow lights. They make grow pots. They got |
| 1:03.8 | scissors. They got protective eyewear. Everything you need is at ACInfinity.com. And code |
| 1:09.5 | Growcast15 is the code you use to save everybody |
| 1:13.2 | you're helping us keep our lights on here and you're supporting an awesome company our partners |
| 1:17.1 | ac infinity we've been with them for years and years now i remember discovering them when |
| 1:21.9 | they just had the cloud line they're inline fans and now they have all these goodies from the cloud |
| 1:27.0 | ray oscillator to the cloud |
| 1:28.4 | forge humidifier. |
... |
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