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A_Swayze t1_j7v9u5u wrote

Why are they comparing plants grown in different medias? This is bad science.

“The outdoor samples were grown in raised beds using a proprietary mixture of all-natural soil and composts under full sunlight. The indoor samples were grown under artificial light in a proprietary growth medium.”

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newpsyaccount32 t1_j7wn87z wrote

first, i'd like to state that i fully agree with you.

second, i'd guess that they did this because these differences are typical to most grow situations. lots of guys growing outside prefer to use soil and compost tea. lots of guys growing inside prefer some sort of media blend with bottled nutes.

basically, these are two opposite ends of the growing spectrum. still, the fact that they did not control all possible variables means that this study is useless for comparing sunlight vs lights.

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arborite t1_j7wqas6 wrote

That's true but showing differences exist at all allows them to request additional funding to separate out the variables.

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curiousAF_ t1_j7z56cb wrote

Because in the marijuana world, outdoor vs indoor has a number of advantages and disadvantages. Indoor has become the most well known for high THC product whereas outdoor growers have always argued that they produce plants that are more rich in terpenes and cannabinoids. This study is proving outdoor growers correct (even though the marijuana industry already knows this). Furthermore, terpenes and cannabinoids are arguably more therapeutic than THC alone, and this is something scientists have been studying since the 70s (entourage effect).

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A_Swayze t1_j7zc2fq wrote

Not controlling variables makes them unable to prove anything. How hard would it have been to grow in raised beds indoors to have comparable data points.

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curiousAF_ t1_j7zdxx3 wrote

I understand that, but I think the differences between indoor and outdoor as is, is/was still scientifically questioned.

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zero0n3 t1_j7y4e5b wrote

Also what light did they use indoors as a test? HPS? CMH? MH? some LED hood?

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epelle9 t1_j7xzy90 wrote

Because they aren’t specifically testing outdoors va indoors in the exact same conditions, but testing outdoor vs indoor in their typical conditions.

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zero0n3 t1_j7y4jbb wrote

Except you then don’t know if it was actually outdoors that led to this or say the nutrient mix lacking some ingredient in the indoor mix.

It’s useless data.

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epelle9 t1_j7y5ia4 wrote

Well, no studies are perfect, but if thats the soil they are grown when sold, it makes sense to compare them that way, and is definitely useful data.

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Mcdiglingdunker t1_j7z5igo wrote

Then those differences should be explicitly pointed out in the materials and methods as well as how they affect the results in the discussion.

There are a lot of proprietary soil mixes and nutrient/fertilizer regimes. Without this knowledge it is impossible for other groups to repeat this work. As such, the data has some use but is lacking enough detail to be less than definite.

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doogle_126 t1_j7xwa9r wrote

Uh, because science like a thing called a control? The natural sunlight plant is the control. It's just written science these days conflates the difference between a good paper and a marketing paper.

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Marrige_Iguana t1_j7vh3om wrote

Terpenes and other cannibinoids are terpenoids, and most do not have nitrogen in their bonds (main part of being an alkaloid)

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tarrox1992 t1_j7vq3qk wrote

But the entire organism is connected and affecting one system could presumably affect the plant's ability to create certain molecules over others. I'm not saying this is the case, but good experiments should control for as many variables as possible, especially something as simple as the growth medium of the plants.

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dasus t1_j7w9qtg wrote

Yeah, this.

There's one main difference to inside and outside light, and that's UV. I would argue that a change in grow medium and style has a larger effect than simply the added UV exposure from the sun.

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[deleted] t1_j7w2n6v wrote

The proteins that synthesis those terpenes have nitrogen and presumably metals in their structure.

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rubixd t1_j7uqoon wrote

Yeah but you can control so many more variables by growing indoors.

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thissexypoptart t1_j7wdst3 wrote

This study didn’t even bother controlling one of the few variables they could and that make a massive difference. The soil media is completely different indoor vs outdoor. That’s not a minor fuckup. There’s really no justification not to control for that. Give both plants the same soil composition.

The title is misleading without mentioning that. It’s like studying how different types of exercises lead to more or less muscle mass gain among two groups, but forgetting to mention group A gets workout supplements and group B ate only potatoes the whole time. Bad science.

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epelle9 t1_j7y057t wrote

Well, if outdoor plants optimally grow in some type of soil, but indoor plants optimally grow in another type, then it makes sense comparing both optimal growths.

Otherwise, you’d have to compare them when grown in soil that benefits one type.

Its kinda like trying to compare Brazilian MMA fighters vs Thai MMA fighters and then saying the comparison is invalid because they ise different styles, well obviously Brazilians use BJJ but Thais use Muay Thai..

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juxtoppose t1_j7v7uh4 wrote

I don’t think this is a surprise to anyone, if a grower wanted these specific alkaloids rather than THC/CBD they would adjust conditions to suit.

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Thrilling1031 t1_j7vq6lc wrote

I don't think we even have figured out all the different cannabinoids yet so don't bet on that just yet. We also are only now just starting to understand study the endocannabinoid systems in humans.

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ohgoshyes t1_j7usxtp wrote

Furthermore proving that we are unable to replicate the sun.

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ryanjovian t1_j7wj5rj wrote

The indoor growing process does exactly that to increase potency and density. So in this specific case we have not only replicated but improved upon the sun.

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ohgoshyes t1_j7wldwl wrote

you’re joking ? do u know how bright the sun is? you should go check out Bruce Bugbee and his research on cannabis. i thought i knew something. no lights are even close to the sun nor the wave lengths nor spectrum. check out his grow light myths video it will change your perspective

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adaminc t1_j7wu65i wrote

1361W/m^2 at Earths surface is how bright it is, we can easily simulate and supersede that.

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Hajac t1_j7xynax wrote

You can't spell knew. You post so confidently.

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jimboni t1_j7wv2vq wrote

Outdoor grow weed is WAY better than indoor. If you can keep it unpollinated anyway.

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FartyPants69 t1_j7xsuip wrote

The design of this study doesn't demonstrate that at all. Because they didn't control variables like soil composition and nutrients, the light source might have absolutely nothing to do with it. These results could be 100% driven by nutrient availability, or any of the other variables they didn't control.

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total_fucking_chaos t1_j7vwn2k wrote

Bugs and humidity are then an issue.

Sorry; I'll take my barely weaker indoor bug, insecticide and mold free weed. Also; we'll figure this out. Indoor growers have advanced the plant a century inside of 20 years.

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creggieb t1_j7x3ws6 wrote

Trust me its not weaker, Maybe if you compare the beat outdoor ever, with the worst indoor. Its not like its perfectly sunny, or bug free with a nice vpd outdoors for the entirety of the plants life.

I can literally turn my grow light up to the point where the plant is suffering from light burn. Where the solution is to turn the light down, or move it away.

Outdoor might cost less , but its for concentrates, not smoking

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RRoyale57 t1_j7vtrre wrote

Introvert weed vs extrovert weed

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captain_chocolate t1_j7w19vz wrote

Like comparing greenhouse tomatoes with homegrown tomatoes.

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jimboni t1_j7wv8l0 wrote

There’s only two things in the world that money can’t buy and that’s true love and homegrown tomatoes.

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skoolofphish t1_j7wt0tk wrote

Yeah if you've ever had fresh outdoor stuff directly from the farm in Mendocino county you know whats up. Although there's nothing wrong with indoor stuff either!

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jimboni t1_j7wvbf2 wrote

So much this. The sun and fresh air is magic.

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skoolofphish t1_j7x7vdu wrote

Yeah I stayed at a farm out there for a bit years ago and the stuff they grew was so strong I could barely handle it and I'm a long time smoker! They know what they're doing out there for sure.

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LevelStudent t1_j7x1fww wrote

I've very glad that more research is being done in regards to weed, it seems very important to me and one of the biggest issues with the war on drugs was how it made no effort to improve out understanding of drugs in order to improve outcomes. I mean obviously the incarcerated people are the biggest issue with the war on drugs, but the lack of research was another big one and I'm glad to see it's being corrected now.

That being said there sure have been a lot of weed-related posts in this subreddit recently. That or maybe they're just the ones most likley to hit the front page or my post feed.

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lvl1developer t1_j7xpzsb wrote

These new cannabis studies posted on here is nothing compared to the knowledge from those in growdiaries

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quietchurl t1_j7wygdy wrote

As with all research confirming suspicions I don’t always even know I have, I will say, “Makes sense”

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clhamala t1_j7y2nxc wrote

Chong says piss on em.

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Deevo77 t1_j7z45ld wrote

Ah, so organic IS better for you!

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conitation t1_j7vxdeq wrote

Yeah... but it spreads like a weed and needs to be controlled. Can be pretty invasive in a ton of places.

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666pool t1_j7wcz8p wrote

Fortunately destruction by combustion is an effective measure of control.

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