Northern Light--Tacoing/Cancoeing

[GCase]

I wanted to place this in a more prominent area, because, it is so unusual. And rather then bog down the other, more popular, subsections I decided to place it here with some tags for future ref. I have been unable to find any definitive explanation for this plants unusual growth. It is a NL freebie from Royal Queen Seeds, so we have to assume it is an NL for now. It came out of the ground in a hurry and grew seemingly overnight nearly an inch and a half then slowed down. Its stable mate a Cream Caramel is doing great and is in pre-flowering.

From the outset during veg. all the new growth has rolled out in a tacoing fashion and then as they mature flattening out. I thought it was improving until this week and I noticed some cupping of older leaves. The RH has been around 30% with temp avg 78 F. Air circulates by fan around the closet aimed at a wall. I also have a fan delivering air in from the outside at a steady rate but there is no breeze in the room. I am using new soil and it tends to retain water. Right now the NL is heavier than the CC pot. They are 3 gl but only about 2.5 gl is filled. Lastly, soil innoculated with Great White and very light organic feeding.

The affected leaves are not dry more on the rubbery side. Notice the first two photos and the foreground sunleaf. The center leaf is round while the others are more spear shaped (genetic).

Any thoughts on this.



Two close ups:

 

[wbojb]

That's a first for me. I am really curious about this as well. I have had wierd leaf formation on one plant before that was only on the left side of it. More of a curly coil thing though. The right side of the plant was normal. Closest thing I have seen.

 

[DubV]

Hey Alan can you get a close up of the cupping leaves? My bubbliscious did this too me as well when humidity dropped below 35%.

 

[GCase]

Hey Alan can you get a close up of the cupping leaves? My bubbliscious did this too me as well when humidity dropped below 35%.

Excellent idea. Added.

 

[BigBuddha]

Hey Alan,


Canoeing most often indicates heat and/or light stress where the plant is either sweating too much or is retaining moisture in reaction to environmental stress. Your ambient temps seem ok, but how about on the surface of the leaves? Where is your hygrometer housed.. to the side of the tent or on top of a plant-pot etc? It's easy to get a reading of 25c out to the side.. but underneath the direct light-stream it can rise to over 30.. so it's possible that your leaves are warmer than you think. Took me ages to figure that out in my own groom and when I did.. the canoeing stopped soon after.

I cannot see any nute-related issues on her or burnt tips etc, so environmental stress (not necessarily heat alone, humidity too) seems much more likely to me. If they were mine, that's the first thing I'd be thinking because aside from the canoeing they look pretty healthy to me.

 

[GCase]

Thanks BigBuddha. I have hygrometer clipped to the pot and one off to the side. It is very dry outside the grow area, right now, dropping as low as 21%. At the pot, it registers from 27% to 30% but avg. about 28%. Now, as the CC pre-flowers its leaves at the flower sites are twisting, and they have a rubbery texture. It just started. I will put up a close-up photo late tonight. Four weeks and issues always arises. I questioned the new soil I am using when I filled the pots. I amended with perlite and a touch of vermiculite. Hydro supply guy said it was good out of the bag, but after the first watering with no run-off I could tell--I had not amended enough. This may be a soil composition and water retention issue. BTY--if the consensus is the soil/amending/water retention--I will transplant in a few days. Link to the soil and its ingredients below:

http://sanctuarysoil.com/2011/empire-builder/

 

[DubV]

Wow Alan that is some loaded soil and if you are seeing not drying out issues then that's possible as well. Your humidity is still too low for most strains. Any Pakistan or afghani would love it but most strains not really.

 

[GCase]

Just bone dry. I have two 1 1/2 inch shoe box top sized containers with water--to no avail. I have a humidifier but that will jack-up the RH too much. Basically, it is all new growth being affected. Right, the soil is loaded, so feeding fert. is not too important--just supp. Wondering about iron/zinc micro lock-out but water retention, loaded soil and low RH might mimic these issues.

 

[Po boy]

agree with Big Buddha

 

[DubV]

Its time to get a runofff Alan! I would want to see some numbers before making any major changes!