Indica HPA Aeroponic Grow Experiment 2020

[leblanca]

Roots look awesome, how old are the plants?

They are about 7 weeks old, i started the seeds the 10 february and they had sprouted the 13 february.
Im thinking of letting them veg for a while since most didnt survive i will grow SCROG might take a while to fill the screen and im not sure how big those plant can become either but we will see as the weeks go on.

 

[Pennywise]

Yea just let them veg.

 

[leblanca]

Tried to change the water schedule yesterday to 1 sec on and 3 min off but the plants started to be droopy by the end of the day so i have put it back to 2 sec on and 5 min off for now.

Started pruning large fan leaves growin inwards to let light penetrade inside the plants.
Warlock and tangerine dream looks similar but purple bud has quiet a different shape.

 

[Ogiesel]

Tried to change the water schedule yesterday to 1 sec on and 3 min off but the plants started to be droopy by the end of the day so i have put it back to 2 sec on and 5 min off for now.

Started pruning large fan leaves growin inwards to let light penetrade inside the plants.
Warlock and tangerine dream looks similar but purple bud has quiet a different shape.

1 sec on & 1:45-2:15 sec off might have been more ideal but its better to play it safe. They're looking good !

 

[leblanca]

I just did a side by side view of my fast few weeks of growth, its impressive how fast it can grow.

 

[Pennywise]

Keep taking weekly pics to compare, it’s pretty cool.

 

[Ogiesel]

lets see that update!!!

 

[leblanca]

Hey, there has been some nice growth, plants are looking healthy, the vegetation is very dense.
I have been pruning large fan leave to let the light penetrate the inside of the plant.
I have noticed a strange behavior i dont fully understand but the roots when touching the side of my tote seems to explode in a cluster of roots, wondering if it could have something to do with the cool air around the totes.
Warlock

Warlock cluster i am talking about.

Tangerine dream

Purple bud

Nice lush green

 

[Pennywise]

Most likely they just have the room once it hits bottom.

 

[Ogiesel]

Theyre taking off!

 

[Rollincoal]

Looking awesome man.

 

[leblanca]

End of week 9
They are very lush, no problem on any new growth, very dense.
The roots seems to be doing well also.
Made the new nute today instead of friday as the res was too full, seems like i used 38 gallon out of 45 in 9 days, so i made 25 gallon nute until friday, should be enaugh.
The lamps are now also seto to 1000W each, this developed more heat so i have to run at minimum speed the ventilation of the garage, it pulls off a lot of cfm so as long as temperature are still chilly outside i run it at minimum and installed a timer to shut t off when lights goes off to save on gas as furnace keeps cycling to keep temperature at 20.c in the garage.
This seems to keep a constant 25.c inside the tent.
I consider my plant to be in late vegetative phase, i give them until the end of the month to spread under the screen and than flip them.
Currently at 480TDS 5.8PH
Cycle at 2 sec on, 5 min off.
Using emerald harvest 3 parts with all their supplements except root wizard as its not available in canada .


Purple bud

Tangerine dream

Warlock

Tangeine dream seems to have grown slightly bigger than warlock.

Very dense

 

[Rollincoal]

Wow they are looking great man.

 

[Pennywise]

Solid looking plants.

 

[The Physicist]

Love the setup! Since you have a thermal imaging camera, you should aim for calibrating your vpd off the leaf temperature to optimize your grow stages. You put in some time in on that setup! I do my 12/12 at night for the reason of cold temp air outside I can bring in to cool my CMH. I’m in for the ride, Good luck!

 

[The Physicist]

Personally I optimized for 85F and 65% humidity. A few universities published on 85F being optimized growth at 2 degree lower leaf temps during veg stage. For early flowering I am optimized to 50% and 79F and later flowering I’ll reduce to 45% and 79F. Reasoning for 79F is above 80F you start to lose terpenes and flavonoids. Good luck!

 

[Ogiesel]

Personally I optimized for 85F and 65% humidity. A few universities published on 85F being optimized growth at 2 degree lower leaf temps during veg stage. For early flowering I am optimized to 50% and 79F and later flowering I’ll reduce to 45% and 79F. Reasoning for 79F is above 80F you start to lose terpenes and flavonoids. Good luck!

Once you get the VPD dialed in its game over man!!! The secret to growing lol

 

[The Physicist]

Thats exactly it, veg should really be only a few weeks for each 2x2 area of space once you hit the proper vpd.

 

[leblanca]

Thats exactly it, veg should really be only a few weeks for each 2x2 area of space once you hit the proper vpd.

Never heard of that VPD i have to look more into it, atm my humidity is at 15-20% and i have no control over it, waiting for more parts to complete the humidifier setup, what does VPD does?

 

[The Physicist]

VPD is is essential in growing, your plants will be stunted if their only water source is in the roots.

How Can Vapour Pressure Deficit (VPD) Boost Cannabis Yields? - RQS Blog

VPD! Why should you care about this 3-letter acronym? Well, considering you're doing everything else right, it could help you unlock untapped yield potential!

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