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Leaf problem.

G

Guest

all i see is a little curling. the plant looks green tho. i do see a little yellow on the lower leave at the tip. may want to look in the big sticky that has all the problems.

i wouldn't worry bout the curling specially since its on 1 leave, are you using any nutes or anything yet? still small so dont get crazy with nutes (probably dont even need any)
 

MynameStitch

Dr. Doolittle
Mentor
Veteran
Dude, you gotta give more information to your growing conditions, otherwise you won't get your answer since it could be a lot of things. I will say the leave is heat stressed that is for sure. Dry heat or light being too close causing the plants to curl to help save moisture and trying to save the leaf.

Can you please fill out this information so we can help you out better.

RE YOU USING?

SOIL:
What STRAIN are you growing?
What was the establishing technique? (seed or clone?)
What is the age of your plants?
How Tall are the plants?
What PHASE (seedling, vegetative or flower) are the plants in?
What Technique are you using? (SOG, SCROG etc)
What size pots are you using? (Include how many subjects to pot)
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful*
What is the TDS/EC/PPM of your nutrients used?
What is the pH of the "RUN-OFF"?
What method of pH test was administered? Using Strips? pH pen?
How often are you watering?
When was your last feeding and how often are you feeding?
What size bulb are you using?
What is the distance to the canopy?
What is your RH Factor? (Relative Humidity)
What is the canopy temperature?
What is the Day/Night Temp? (Include fluctuation range)
What is the current Air Flow? (cfm etc.)
Is the fan blowing directly at plants?
Is the grow substrate constantly wet or moist?
Is your water HARD or SOFT?
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
Has plant been recently pruned, cloned or pinched?
Have any pest chemicals been used? If so what and when?
Are plant's infected with pest's?


HYDROPONICS/Aero Ponics

What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)
What STRAIN are you growing?
What was the establishing technique? (Were the seed or clone?)
What is the age of your plants?
How tall are the plants?
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?
What Technique are you using?
What substrate/medium are you using?(Hydroton, RockWool etc.)
What is the Water temperature?
What color are your roots? White? Brown? Are your roots slimy?
What Nutrient's are you using? How much of each if using multiple?
What is the TDS/EC/PPM you are using?
What is the pH of the "Tank"?
Are you sure your calibration is correct on your equiptment?
When was your last watering?
What is your water temps?
When was your last feeding change? (ie. grow-bloom-micro-additional)
How often do you clean your system: example: Flush out water replace with clean water and nutrients?
What size bulb are you using?
What is the distance to the canopy?
What is your RH Factor(Relative Humidity)?
What is the canopy temperature?
What is the Day/Night Temp? (Include flucutaion range)
What is the current Air Flow? (cfm etc.)
Is the fan blowing directly at plants?
Is your water HARD or SOFT?
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
Has plant been recently pruned, cloned off of or pinched
Have any pest chemicals been used? If so, What and When?
Are plant's infected with pest's
 

IlluZiOn

New member
What STRAIN are you growing?
dont know
What was the establishing technique? (seed or clone?)
seed
What is the age of your plants?
2 weeks
How Tall are the plants?
11cm
What PHASE (seedling, vegetative or flower) are the plants in?
vegetative
What size pots are you using? (Include how many subjects to pot)
1liter per plant
What substrate/medium are you using? What brand of soil mixture are you
using?(percentage of perlite, vermiculite...etc?)
Soil is "biolan" black soil, ph 6.5. http://www.biolan.fi
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful*
I dont use yet
What is the pH of the "RUN-OFF"?
unknown
What method of pH test was administered? Using Strips? pH pen?
I Dont test ph
How often are you watering?
Every 4 days
What size bulb are you using?
2x 26w compact
What is your RH Factor? (Relative Humidity)
45-65%
What is the canopy temperature?
25c
What is the current Air Flow? (cfm etc.)
0
Is the fan blowing directly at plants?
Dont have any fans, because temps are normal
Is the grow substrate constantly wet or moist?
Is your water HARD or SOFT?
I use rain water(hard i think)
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
I use rain water.
Has plant been recently pruned, cloned or pinched?
NO
Have any pest chemicals been used? If so what and when?
NO
Are plant's infected with pest's?
NO
 
Last edited:

MynameStitch

Dr. Doolittle
Mentor
Veteran
Is it the organic kind of soil?
Which kind of, they have different kinds of the soil you are using.

How close was that leaf to the lighting.

Are you using compact fluros or incandesants?
 

IlluZiOn

New member
MynameStitch said:
Is it the organic kind of soil?
Which kind of, they have different kinds of the soil you are using.

How close was that leaf to the lighting.

Are you using compact fluros or incandesants?

Soil

I think its organic soil

Type: flower soil
pH: 6.5
configuration
tree barks
light and dark grow peat
chicken muck:90litre/m3
dolomite lime: 8kg/m3

nutrient concentration
N: 100 milligramme per litre
P: 80 milligramme pe rlitre
K: 400 milligramme per litre

Im using this kind of light.
The leaf was about 5cm close to light.
qu50054634bo_Compact_Fluorescent_Lamp___U_Type.jpg
 
Last edited:

MynameStitch

Dr. Doolittle
Mentor
Veteran
That is very close, even CFL's can cause heat stress, but they have to be very close, so I would move the light a little bit away and they will be fine, like I said it looked like heat stress and I know from experience they can cause a problem, but it has to be extremely close.
 

IlluZiOn

New member
MynameStitch said:
Heat will degrade chlorphyll, did you move the lighting up like I said too?

Yes I moved about 5 cm more away, now its about 12 cm away from the plants.
 
Last edited:

MynameStitch

Dr. Doolittle
Mentor
Veteran
The damage won't recover and if it is still doing it then you will have to move it up a little bit higher.
 

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