GPPW -vs- PPFD

PurpleBuz said:

wasn't asking for answers to the questions.

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I truly believe you are the most ignorant person on this forum. Go play with your blurple lights. Almost half of what you are asking for is already what the OP is asking for. Read the OP and stop being stupid.

doz said:

I truly believe you are the most ignorant person on this forum. Go play with your blurple lights. Almost half of what you are asking for is already what the OP is asking for. Read the OP and stop being stupid.

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me stupid? did you even understand what I said? so tell me just what did I say that is wrong or invalid ?

I'm asking the contributors to specify their grow area.
Generally 2 months. Anomalies can be thrown out.
Any strain. Anomalies can be thrown out.
CO2 is unaccounted for
water or soil
The light source needs to be white and have lumen or radiometric data available. I don't wan't to deal with blurple.

Some of this was addressed in the OP. The more variables I ask for the less likely people are to participate. Light, space, yield and soil/hydro will be good enough. The data doesn't need to be highly accurate to be useful. I will be building my own chart based on 500, 730 and 770 PPFD. More information will generally make the graph more accurate and would be nice to have some results that confirm the below 500 and above 800 projections based on my three data points.

PurpleBuz said:

there are TOO many variables in a survey of GPW to be useful without an extremely large set of survey data.
don't mean to be a downer just being realistic.

the photosynthesis chart you were referring to was done monitoring individual leafs for O2 production with controlled consistent conditions and only the variables in question being varied.

is that GPW in a 4x4 or a 5x5 ?
is that 2 months or 4 months total grow time ?
what strains ?
with or without supplemental CO2?
dwc, ebb & flow, soil ?
harvest for flowers or harvest for oil ?
KIND led, BML leds, or COB leds ?


...... etc.

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i think the ratio between G/KWhour of the entire grow room and G/PARWhour (yes, the hour need to be included here IMO) is a single number growers could use to rank each other. who can squeeze the most juice outta this lemon. It could be the ONE number used to say rank growers regardless of size of growing method, statistically speaking. Thoughts?

this of course doesn't say anything to the effectiveness and genetic expression of the end product, just total efficiency so thats still to be considered