Some advice on canoeing of leaves 🛶

[SofaKingHigh]

So I’m not super concerned about the leaves but I’m curious as to what’s causing this issue. It’s only happening to this particular plant the rest are perfect. I’m thinking it’s because the buds are closer to the light but I say that and yet some lower buds on that plant are doing it as well. My temps are 74-79f and RH is 50-60%. In coco feeding mega crop 1 part and bud explosion at 1.3 ec going in and run off is at 1.5-1.6. Yes I know this is lower than there feed scheduled but I got a slight tip burn earlier in the grow so I backed off. I’m feeding 3 times a day with plenty of run off. I also did have a large fan that was blowing on the top buds but I adjusted it yesterday. All the leaves are praying to the lights at about 1000 par in the center and 700 on the edge.Thanks for any thoughts.

 

[Mr.GreenthumbOG]

Caused by high light levels, I’m sure it’s the most obvious where the PAR levels are the highest.

 

[SofaKingHigh]

Caused by high light levels, I’m sure it’s the most obvious where the PAR levels are the highest.

That’s what I was thinking as well but there are a few lower buds that the leaves are doing it as well, in a spot where the par is definitely not the highest. I’m debating turning the lights down a bit but at the sacrifice of the edges so I’m not sure.

 

[Mr.GreenthumbOG]

Have you taken leaf temps? Do you have a fan over the top of the canopy?

 

[SofaKingHigh]

Have you taken leaf temps? Do you have a fan over the top of the canopy?

Yes leaf temps are only at like 74-75f and yes I have 2 fans over the canopy.

 

[Mr.GreenthumbOG]

Ok. Then its light levels. You could dial it back or let it ride for the greater good.
I wouldn’t worry about it too much.

 

[SofaKingHigh]

Ok. Then its light levels. You could dial it back or let it ride for the greater good.
I wouldn’t worry about it too much.

I believe I’ll let it ride or may tie the few down

 

[phxazcraig]

I'm looking for the same sort of symptoms, but so far not seeing them. I've got 12 inches to work with, 1100-1300 PAR in the center, 500-600 in the corners. But no plant directly under the center - 4 plants in a square, so only a quarter of each plant is actually under the brightest part. I have no idea if such a brightness gradient is averaged out through the plant in any way.

 

[SofaKingHigh]

I'm looking for the same sort of symptoms, but so far not seeing them. I've got 12 inches to work with, 1100-1300 PAR in the center, 500-600 in the corners. But no plant directly under the center - 4 plants in a square, so only a quarter of each plant is actually under the brightest part. I have no idea if such a brightness gradient is averaged out through the plant in any way.

I have a bar style light and a board style light and the bar is much more even with barely any “hot spots” unlike the board style. The main bud that’s doing this is in between both lights which maybe part of my issue.

 

[phxazcraig]

When you posted, I tried to figure out what the most likely cause would be, and I came up with windburn, or heat stress. Not sure about sheer LED brightness. I've cooked plants before with light turned up, and while it was obvious in the end, I don't know how it started. I don't think I had leaves doing what yours are doing though. I also ran across possible correlation to calcium deficiency symptoms, but that shouldn't be localized. Sounds like for that strain you're just on the edge of conditions. Perhaps add something to the nutes designed to help with stress, like Silica Blast, and maybe humic acid (Diamond Nectar). Maybe one or two of those mushroom bags for extra CO2 even.

 

[DanC520]

It’s light I’d imagine as others said. Wouldn’t worry about it if mild. I feel like some of the nicest buds I see have canoeing upper fans in late flower. For example here of some of Exotics plant pics for their upcoming Scotty 2 Hotty release. THESE ARE NOT MINE

 

[SofaKingHigh]

It’s light I’d imagine as others said. Wouldn’t worry about it if mild. I feel like some of the nicest buds I see have canoeing upper fans in late flower. For example here of some of Exotics plant pics for their upcoming Scotty 2 Hotty release. THESE ARE NOT MINE
View attachment 1226389View attachment 1226390View attachment 1226391

I would agree that I have seen some nice buds with the same thing and I would be fine with it in late flower but I’m just starting week 4 of flower

 

[SofaKingHigh]

When you posted, I tried to figure out what the most likely cause would be, and I came up with windburn, or heat stress. Not sure about sheer LED brightness. I've cooked plants before with light turned up, and while it was obvious in the end, I don't know how it started. I don't think I had leaves doing what yours are doing though. I also ran across possible correlation to calcium deficiency symptoms, but that shouldn't be localized. Sounds like for that strain you're just on the edge of conditions. Perhaps add something to the nutes designed to help with stress, like Silica Blast, and maybe humic acid (Diamond Nectar). Maybe one or two of those mushroom bags for extra CO2 even.

I like the idea of possibly adding something to help with stress, I would tend to agree for that plant I’m pushing it a bit hard.

 

[DanC520]

Maybe a tad early, but still wouldn’t worry if mild. If still stretching might need to raise light or dim a little. But I’d only worry if plant tells you. I know my ladies have done it. These ones are mine. I’m early week 7, but these been there for a little bit.

 

[SofaKingHigh]

Maybe a tad early, but still wouldn’t worry if mild. If still stretching might need to raise light or dim a little. But I’d only worry if plant tells you. I know my ladies have done it. These ones are mine. I’m early week 7, but these been there for a little bit. View attachment 1226400View attachment 1226401View attachment 1226402

Well thanks that at least makes me feel better. I wasn’t too stressed about it, I was more curious than anything. Trying to dial everything in and obsessing over trying to make my runs “perfect” or as close to it.