1 gram per 1 watt at most is this true ?

well im kinda getting mixed messages here fellas is it possible the strain says 350g - 1000g does that mean as long as your not a total idiot the least you will yield is 350g a sq meter

No, it means that is the yield that an efficient and experienced grower can yield in a SOG setup.
1000g per square meter is a bit of a fantasy though, lol! You'd have to be running CO2 dialed in TIGHT to even consider that a possibility.
Just FYI... only n00bs ask the 'how much am I gonna get off this plant' question... :D

Stinky - Rhizome ,
When you guys are figuring G.P.W you use the no. of months as a divisor ?
I've never seen it done before , When Latewood figured yields in his "All You Need 3 part" thread he didn't / by no. of mos. ?

I get 1362 g. from 2000 watts = .681 G.P.W :)

I figure it out your way It's almost disheartening .

1362 g. from 2000 watts = .681 / 4 mos. = .17 G.PW :(

Crispi :jointsmile:

Crispi, you're putting on a quite a bit of WOOD by growing large trees (but they are SO beautiful!!!!).
The 'month' part is just as important as the g or w.
Maximum efficiency is from rooted clones in SOG. In that setup, the BULK of the energy that the little plant puts into its short life is in bud production... I'd actually like to see some of your numbers for g/w/m TOTAL DRY PLANT WEIGHT, buds, roots, stalks, leaves, and all, not simply dry buds... you'll see where your electricity is going.

Good point Stinky .
"Wood" isn't an exag. either, 1.5 inches in diameter w/ bark like a tree last grow.

When this grows done and chopped down and hanging I'll hang 1 from a fishing scale just for kicks . :D
Peace Sis .
Crispi :jointsmile:

i think i remember at OG, that BOG(my hero) got a lb off one 400w hps in soil. but we all know he wasnt your average grower.i wish i could get my hands on any of his strains.

XC- metric doesn't apply cleanly to your room- you veg in the same space, right?

1g/w/m is the standard for flower room time only- designed to allow comparisons between multi-room grows. Formula doesn't include veg time- assumes that plants of whatever size are moved into flower and immediately or almost immediately flipped.

If you take off all that veg time, your #'s look better.

Also, you're in an artificial situation that reduces plant #'s- if you'd done , say , 30, veged the same amount of time, and then flowered, your weight yeild would have been a LOT higher. ( Your room would also have been crazy crowded)

Recap- 1g/w/m standard doesn't apply to the style of grow that you're involved in- You have VERY GOOD REASONS to do it the way you do, but your style isn't appropriate for a commercial production room.