What does this mean?

[TheyCallMeJJay]

I've always wondered why my plants leaves point up.

 

[supermanlives]

they are happy

 

[mad librettist]

they are at the optimal angle for light absorption, meaning they are happy and productive. maxing out, if you will.

you can fiddle with the lighting and change the direction they tilt.

 

[pearlemae]

Viagra?

 

[schwilly]

praying to the sun god

 

[VerdantGreen]

some say it is a sign of magnesium deficiency - the so called 'praying for magnesium'

 

[TheyCallMeJJay]

some say it is a sign of magnesium deficiency - the so called 'praying for magnesium'

What's your opinion? It's consistent with all the other plants in the garden.

Eventually they stop doing it around mid to late flower. I sort of hypothesis it has a relation to root growth. Also thought it may have to do with the plant trying to prespire. Not sure, im pretty much stumped on it.

 

[VerdantGreen]

not sure, i doubt its about light absorption because they are doing it uniformly all round the plant so some of the leaves are at the worst angle to absorb light.

 

[mad librettist]

Those plants are not magnesium deficient!


Not sure if this applies to cannabis:

Many plants can change their leaf angles and orientation in response to a change in light. Some do this to increase interception while others do it to avoid high light. A good example of optimising light interception through leaf move-ment is given by Oxalis oregana, an understorey herb of red-wood forests in western USA (Figure 12.4). This plant is able to track sunlight on dull days, but can change leaf angle from horizontal to vertical in only 6 min if exposed to full sunlight (Björkman and Powles 1981). In this way, leaves can maintain maximum photosynthetic rates under a variety of light conditions. Omalanthus novo-guinensis, an Australian rainforest plant, can also change leaf angles in response to full sunlight within about 20 min (Watling et al. 1997b).

http://plantsinaction.science.uq.ed...ent/12-1-1-light-interception-and-utilisation

 

[Easygrowing]

if i gives mine to much nutrients-they do so exactly so..without burned edges also..

 

[el dub]

No deficiencies there, just a happy plant, imo.

If you watch newly cut clones closely you will see that the leaves strike a similar pose upon rooting. That's usually all I need to see to know the plant in question is ready for the next phase....

lw

 

[fungzyme]

Could it have something to do with the plant tissues having the maximum of water (and also nutrients/sugars/whatever) in them, making the leaves 'rigid' for lack of a better word?
And it takes energy of some sort to resist the downward pull of gravity.

 

[pinecone]

I've seen that on seemingly happy plants and also plants that are less than happy. The Kali Mist seedling below started doing it in FFOF right before it started to show what I now think was bad nutrient burns. My flowering plants now are doing this a bit (to lesser extent than Jay's) and they look very healthy to me.

Pine

BTW Jay - I had my first Hop Slam of the season last night.

 

[TheyCallMeJJay]

I've seen that on seemingly happy plants and also plants that are less than happy. The Kali Mist seedling below started doing it in FFOF right before it started to show what I now think was bad nutrient burns. My flowering plants now are doing this a bit (to lesser extent than Jay's) and they look very healthy to me.

Pine

BTW Jay - I had my first Hop Slam of the season last night.

What did you think about the Hop Slam? I cant even compare it year to year because it's best fresh. I loved it. It's still sold out everywhere around here.

 

[TheyCallMeJJay]

I supper cropped the plants the top half of the main stem a couple of days ago. The leaves went down almost immediately. Only to perk right back up within an hour.

Almost as if the plant said "nice try buddy". Humidity is low in there. I'm talking in the mid 50's. Temps @ 75.

I've never seen this with an indica (only have grown one).

 

[VerdantGreen]

Those plants are not magnesium deficient!


Not sure if this applies to cannabis:


http://plantsinaction.science.uq.ed...ent/12-1-1-light-interception-and-utilisation

not saying they were, just mentioning the folklore

with the light thing i find that leaves react to light pretty independently of each other, and that's not what they are doing in the pic if you look closely.

it'd be cool to work out what it was though, its something most of us have seen im sure. my plants have never done it for more than a couple of days and very rarely.

VG

 

[pinecone]

What did you think about the Hop Slam? I cant even compare it year to year because it's best fresh. I loved it. It's still sold out everywhere around here.

Sold out? It is only available now and for the next 2 month or so. I bought a 6-pack yesterday and it was the first time I saw it in the store this year. I think they just released bottles last week.

I liked the Hop Slam a lot, but most of the time I prefer the Two Hearted Ale because it it is more drinkable by virtue of a lower ABV. It is also $5 per 6 pack cheaper. Still I buy at least a 6-pack of HS every year.

Pine

 

[nameth2004]

i have read somewhere on the forum that its a plan way of saying to much light,angles it leaves up kinda like how we shade are faces with our arms whens its a sunny day.i also read it just going in the direction where the light most intense,if the leaves are green and plant grows nothing wrong with it