Comparison g/w experiment

Basic Growing Info
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Hello OGers,Here’s a question of mine:
How would you rate a 38,90Grams outcome from a 1 liter pot(not even full) grown under a 50 watt led panel(63 days chopped)?
We are talking at least 0.8g/watt

I would like to make a comparison between this and another plant grown side by side under 160 watt of Power,lower and wider,in a 7 liters pot that has produced about 6 times more dried Buds and had been around 15 days more(day 75-80 chopped)

Both plant had a lot of seeds and I had to sacrifice a lot plant matter to get Them out so the weight Is the final weight with removed lot of calyxes and seeds.

They were grown in Coco.
What was Better,the 1 liter pot or 7 liters sister?
Consider the Little plant was higher and narrower,so less space means more variety
(Strains are different unfortunately)
Coco/perlite.

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Hello

0,8 g/w is low weight with led

They are people who make easy 1,3 g/w with led

Your led are good ? How is the soil ? And the pheno you choose to grow is productive or not ? And the other parameters of your grow room (temperature, humidity, ventilation) ?

But in a good way to see the thing, I prefer 0,8 g/w of good weed than 2 g/w of average quality

And you should do some research about the volume of your pots. Because it depend on how you grow your plant. For exemple 7 liters is too much for one bud style but not enough for scrog style.

All the best

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Temps have been around 25C at light on and 22 lights out.Rh has been under 62% and above 55%
It Is a cheap led light from Amazon full spectrum,that Is why I was wondering of the results.The plant was also 160cm High and very slim.It was a mephisto double grape
@trytogoodbud

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i understand this is mephisto so they are autoflower right?

couple things:

it sounds like your pot is too small. try 3gal (or 10 liters) - ive had bad experiences with small pots and autoflowers.

63 days sounds like too young for an auto, a week or two more would have also yielded more, with autos it makes even a bigger difference.

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Had to cut her down unfortunately together with her sister at day 63-65 for lack of drying space(had to use same tent as dying space)
@the_bot

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You’re only running a 50 watt LED??? If so, you could definitely bump it up and get way more yield. 50 watt IMO is too small, 250 watt and up will do you a lot better.

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almost 40 grams with a seeded plant under a 50 watt led in a liter pot…sounds pretty damn good to me! :man_shrugging:

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Honestly @Andrexl I don’t think you really should use that grow for a comparison at all, too many variables involved.

The advice above is sound and will give you better results, so run with that rather than trying to parse out the details.

Your skills are improving dramatically with each grow, keep up the good work.

-Grouchy :v: :green_heart:

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Thank you all :heart:
@killabud @Kgrim @GrouchyOldMan
Yes I had only a stupid 50 w output led over that plant,while the other had a lumatek led dimmelo at 160,but since She was shorter It didn’t had a GREAT impact on the canopy,I m sure tho It helped with some angle lighting because mylar Is reflective.

Anyhow,Thank you so much to all of you,my concern was of running Little plants but more of Them (1 liters pots) would have been Better for my space(80x80cmx170height) with a Little list.

What s your thought Friends?

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I think that you shouldn’t worry about yield.

Anything near 1 gpw I’d consider a good result.

It’s very strain dependent. I treat 2 different things in the same way and get totally different yields.

Best of luck.

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Just to bring a bit of exostism …

I’ve the habit to separate the results from the method used, so i don’t really use the grammer/watt ratio to evaluate the yield (averages or individually).

For lamps/bulbs you have twos choices in fact :

  • using the “power” as a notion of efficiency : lumens
  • using the “power” as notion of cost : watt per hour given by the manufacturer

After that, you’re pretty free to refine your equations and to create some patterns to catch: total volume of nutrients used, total volume of water used, total volume of medium …

The results :

A1 - 38,90 grammers and 63 days = 0,61 grammer / day
B1 - 233,4 grammers (virtual, your “6 times”) and 80 days = 2,9 grammer / day

Because you choose the watt/h, only the timeline count in the productivity. From now you have a difference 2,9/0,61 = ~4,75 times

The method :

50w led = 0.61 g/day @ 50w/hour = 0.61gr per cost index 600/day (arbitrary, 12/12 only)
160w led = 2.9 g/day @ 160w/hour = 2.9gr per cost index 1920/day (arbitrary, 12/12 ony)

So you have a difference 1920/600 = 3.2 times

So :

A1 = 0.61/600 = 0.0010 gr per 1 pts index spent
B1 = 2.9/1920 = 0.0015 gr per 1 pts index spent

But in the same time B1 give you 4.75 times more gr for 3.2 times more money.

Mix that with factors like nutrient, volume of soil, price of seeds etc … and you have a refined cost/method.

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Grams per kWh is a good metric but I find it overly complex. Grams per watt, while not perfect, is just the right amount of simplicity for me. And close enough.

I’ve done the kWh math and it is interesting but for shorthand gpw is just fine.

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That’s the problem, the grams per watt can only be used on a timeline or it’s totally erroneous, by that i mean it’s totally random from one grower to another.

To simplify to the bone the concept, the gr/lumens have to be used in this vein. It’s simple to calculate, but only when dimmers are not involved ^^

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I d Say I had a decent result based also on the medium involved and all the calculation.Next step Is calculating what I can do in a solo cup :grin: with a proper lighting/more Watts

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I really like the grams per day and grams per ft² metrics myself.

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Yes I’m familiar with the limitations. But kWh is a more advanced calculation and perhaps overly complicated is not what’s called for here.

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I understand your point, but there is a big difference between the real gr/watt ratio and a random interpretation of it. What you’re reading on the packaging and the marketing of lights is the watt/hour.

And it’s not even an accurate data. I’m actually supposed to eat 750W (manufacturer) and the watt meter say 585W ^^

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My watt consuption Meter claims 52watts when I plug that Little Qb

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Yea, real watts vs fake watts. I hear you.

But the OP is not asking for the ultimate most accurate and reliable gauge of yield perfection he’s just asking “is this good.” To which I say yes.

But yes I had a sativa yield 1.5 gpw but it took 3 months and that is certainly something to consider but that’s more of an advanced problem.

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Exactly @Foreigner ,my concern here was if It would be Better to run smaller plants than bigger pots,increasing variety but not decreasing Total yield.

@Fuel has given a very specific analysis,I love that type of details tho

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