Leaf discolouration and Mutation

Buds4Fun

Buds4Fun

Active Member
Hi everyone,

It’s been awhile, it’s good to be back. I’ve got problems but that means there is potential for growth and learning, so woohoo! Bring it on!

Here’s the run down I’ll be as detailed as possible so please excuse the length.

Strain is bag seed, I’m told it’s a Thai Lemon. Outdoor grow

Medium is Coco(70%), soil(20%), perlite(10%) mix with a hint of blood and bone. Medium PH is 6-7 not long adjusted with some diluted lemon juice.

Nutes are BAC (biological active cocktail) organic Grow feed as recommended. https://www.bacforplants.com.au/product-page/organic-grow-bloom


2 plants with seperate symptoms

Plant A has discoloured leaf edges
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Plant B has strange leaf formations, curling and only single bladed leaves
6F9F4829-DB3B-469C-AFC0-46600BB678B2.jpeg
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Thanks!!
 
J

Jimmy0465

New Member
How deep did you plant them? Your medium, pH, and organic fertilizers are generally lower in nitrogen (although your link doesn't tell you what your applying) all seem fine.
Deformation of growth, die back on edges, along with that hole in the centre of the one leaves are all symptoms of abiotic stress(natural causes). If you have wet soil packed against the bark above the root crown you can slightly rot and damage the cambium which is mm's behind the bark. The cambium is the vascular system of plants. This can cause improper sap flow and give you the symptoms mentioned above.

I am not diagnosing this as the cause of your issues, but it's food for thought. Abiotic stress can often have the same symptoms as a fungus, disease, or insect that aren't visual.
Not just planting too deep but, root damage can also go undetected... cheers jimmy
 
Joedank

Joedank

Well-Known Member
The first one looks like it’s getting cooked by the sun but might bounce back
The second got triggered into flower but looks to be pulling back to veg.
Are you in the Southern Hemisphere per chance ?
 
Buds4Fun

Buds4Fun

Active Member
Joedank said:
The first one looks like it’s getting cooked by the sun but might bounce back
The second got triggered into flower but looks to be pulling back to veg.
Are you in the Southern Hemisphere per chance ?
Click to expand...
Correct, from down under.
Cheers for the feedback. Defiantly started to flower when the days were still abit shorter and is veging again now they are getting longer. Any thoughts on the strange leaf formation?
 
Buds4Fun

Buds4Fun

Active Member
Jimmy0465 said:
How deep did you plant them? Your medium, pH, and organic fertilizers are generally lower in nitrogen (although your link doesn't tell you what your applying) all seem fine.
Deformation of growth, die back on edges, along with that hole in the centre of the one leaves are all symptoms of abiotic stress(natural causes). If you have wet soil packed against the bark above the root crown you can slightly rot and damage the cambium which is mm's behind the bark. The cambium is the vascular system of plants. This can cause improper sap flow and give you the symptoms mentioned above.

I am not diagnosing this as the cause of your issues, but it's food for thought. Abiotic stress can often have the same symptoms as a fungus, disease, or insect that aren't visual.
Not just planting too deep but, root damage can also go undetected... cheers jimmy
Click to expand...
Cheers for the reply, I don’t think they are planted too deep, tho I did have wood chips ontop of the medium previously, but has since been removed.

I do think you could be into something regarding the roots. Perhaps excessive moisture for extended periods with having wood chips ontop has created a home for some unwanted pathogens.

I’ll have a look at the base of the stem tomorrow and let you know.
 
J

Jimmy0465

New Member
Buds4Fun said:
Cheers for the reply, I don’t think they are planted too deep, tho I did have wood chips ontop of the medium previously, but has since been removed.

I do think you could be into something regarding the roots. Perhaps excessive moisture for extended periods with having wood chips ontop has created a home for some unwanted pathogens.

I’ll have a look at the base of the stem tomorrow and let you know.
Click to expand...
In most cases wood chips would not likely hold enough excessive moisture tight to the trunk to create decay.

It's not necessarily a pathogen, roots can naturally die back for various reasons. If the specific leaves effected with the edges dying, all lead back to the same stem, then this could be a possible cause. Even if this was the cause, it is not a huge issue as the damage seems minor in your photos and it would be my belief that these plants would quickly reproduce new roots.

If you allowed this plant to trip into flowering for any length of time, and re-entered it back in to a lengthier light stage, you may also disrupt consistent sap flow for vegetative growth. Possibly causing deformation of new tissue growth. Being this plant is an annual, I am uncertain if this cause is permanent or not.

My background is in food crop production, forestry seed production, and some ornamental landscape. I have just newly started in this industry and am learning myself.
 
osowhom

osowhom

Well-Known Member
i have one that looks like plant b it was a monster clone taken week 3 of flower i bet it out performs the rest just give it time
 
Buds4Fun

Buds4Fun

Active Member
Jimmy0465 said:
In most cases wood chips would not likely hold enough excessive moisture tight to the trunk to create decay.

It's not necessarily a pathogen, roots can naturally die back for various reasons. If the specific leaves effected with the edges dying, all lead back to the same stem, then this could be a possible cause. Even if this was the cause, it is not a huge issue as the damage seems minor in your photos and it would be my belief that these plants would quickly reproduce new roots.

If you allowed this plant to trip into flowering for any length of time, and re-entered it back in to a lengthier light stage, you may also disrupt consistent sap flow for vegetative growth. Possibly causing deformation of new tissue growth. Being this plant is an annual, I am uncertain if this cause is permanent or not.

My background is in food crop production, forestry seed production, and some ornamental landscape. I have just newly started in this industry and am learning myself.
Click to expand...
Nice background, welcome
Do you think giving them straight molasses could damage the root systems.
I poured some on the wood chips a while back. It end up killing a couple of younger plants.
When I noticed I removed the wood chips. The bigger plants didn’t seem to be affected by it, but maybe it’s just taken some time to show. It was 3-4 weeks ago.
 
J

Jimmy0465

New Member
Buds4Fun said:
Nice background, welcome
Do you think giving them straight molasses could damage the root systems.
I poured some on the wood chips a while back. It end up killing a couple of younger plants.
When I noticed I removed the wood chips. The bigger plants didn’t seem to be affected by it, but maybe it’s just taken some time to show. It was 3-4 weeks ago.
Click to expand...
You got me on that one. I'm not sure what molasses would do to a plant? If it killed some young plants using it straight, then we know thats not beneficial. It's mentioned below breaking it down with warm water at a smaller rate. I'll leave that alone as I have no idea what molasses is even made from without researching.
I think is best to just play it out, let it grow for awhile and certainly avoid any high nitrogen until the plant is healthy again.
Large productions and experienced growers will have the science down, pH, Co2, micro and macro nutrients, air flow, light, humidity, all kinds of factors in play for maximum yield.
Backyard less experienced growers will likely get a safer productive yield just sticking to the basics at first.
 
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