Amount of light?

[SHRED]

@Son of Hobbes this lighting conversation has nagged at me in the back of my mind for awhile. I believe an important element of lighting that isn't discussed was overlooked. Regardless of much light cannabis can tolerate, plant canopy management is ignored. Big plants produce more humidity, are more prone to pest/Disease, and allow less overall light to the plant hence pruning becomes necessary.

I'm not too familiar with how this would be accomplished with autos but imo the ideal method of growing indoors would be in a SOG. Higher density planting, even several to one pot, with shorter overall heights would maximize the efficiency of the light. It isn't practical to go beyond 1200ppfd with c02 because of HVAC/energy/resources cost being more than the overall yield.

With photos we're looking at more harvest per month with reduced veg time that fully capitalizes on lighting since the plants are shorter. In regards to autos, do we restrict pot size to keep height lower in conjunction with topping?

Aside from the cost of seeds, consistency, and control, autos would be preferable for the home grower with a smaller budget for lighting. 500 PPFD over 24 hours would be be 43 DLI comparable to 1000 ppfd over 12 hours. This is going to work much better with smaller plants while making height limitations non issue

What you think?

I started quite a discussion here.
You pros are way over my head but I'm learning. Thank you.

Back before I had LED.
5gal soil grow.
315W CMH
3x3 Gorilla
19.6 zips
Before I new about thinning...or PAR, or PPFD, or LUX, DLI, etc...

Lol.

 

[SHRED]

Okay.
Should I increase the light?
At 75% at about 24".

Tips are like green but they are growing very fast

 

[Death The Cultivator]

Okay.
Should I increase the light?
At 75% at about 24".View attachment 1483544

Tips are like green but they are growing very fast

You can, I'd just watch them for stress

 

[SHRED]

You can, I'd just watch them for stress

It's been 8 hours.
I don't see any stress.
Do you?

 

[kfigerm]

seems they love it, but relax, harm isn't done so fast with this "little" light as long temps are alright, Look for droopy and sideways leaning fingers. If they are still in growth/stretch you can do a lot with high moisture to make them comfortable.
If light is too heavy, they won't stretch too much, perhaps another sign of stress - but all looks great!

 

[SHRED]

seems they love it, but relax, harm isn't done so fast with this "little" light as long temps are alright, Look for droopy and sideways leaning fingers. If they are still in growth/stretch you can do a lot with high moisture to make them comfortable.
If light is too heavy, they won't stretch too much, perhaps another sign of stress - but all looks great!

Thank you. I closely monitoring.
I have a cool little remote sensor that I use an app with. It gives historical data.

 

[MIAutomatic]

Definitely not too hot, you actually want it a little warmer during “daytime”, and your humidity is consistently quite a bit too high. Temps in the low 70s and humidity spiking into the high 80s is a recipe for mold growth. Even a short period of time at those levels can sprout some spores in a dense bud. You are definitely missing your VDP targets by quite a bit as well.

 

[SHRED]

Definitely not too hot, you actually want it a little warmer during “daytime”, and your humidity is consistently quite a bit too high. Temps in the low 70s and humidity spiking into the high 80s is a recipe for mold growth. Even a short period of time at those levels can sprout some spores in a dense bud. You are definitely missing your VDP targets by quite a bit as well.

It is what it is.
I live right next to the ocean and my tent is in the garage.
I filter the intake the best I can and haven't had an issue with pests or mold in several grows.

It's definitely easier to control temp and humidity during the fall and winter months. Less humid.

 

[MIAutomatic]

It is what it is.
I live right next to the ocean and my tent is in the garage.
I filter the intake the best I can and haven't had an issue with pests or mold in several grows.

It's definitely easier to control temp and humidity during the fall and winter months. Less humid.
View attachment 1483807

Ahh, I know all about battling high humidity in mid Michigan. You probably have a lot less pollen and mold being close to the ocean breeze than we do in my area. This time of year we have lots of pollen and mold just floating around all the time in the air. It looks like your humidity goes up quite a bit at night. It might be worth getting a dehumidifier to run in your garage at least at night. I bet it would significantly lower the humidity and be a pretty easy fix.

 

[Butrod]

^^ spot on.
A bit extra heat will reduce relative humidity as well