Manganese Deficiency ?

Capn-Crunch

Well-Known Member
This is showing up on some of the newer leaves on a Pineapple Chunk plant.
Looks to me like a manganese deficiency.
Opinions please.
Thanks
 

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Logan Burke

Well-Known Member
Yeah I've not seen many instances where the true problem is not having enough mangananese. Unless you're not using a complete base nute. What nutes are you using? Could we please have a picture of the whole plant? That will give a better chance of more people stopping by to offer advice.
 

Capn-Crunch

Well-Known Member
Here is more info.
Growing in recycled promix
Jacks 321 @ 400PPM
5.8 to 6.0 PH
2 seeds found in a bag of pineapple chunk. Both were female, 2 completely different phenos because one plant shows constant
issues while the other doesn't.
This plant is 3 weeks into flower.
 

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Capn-Crunch

Well-Known Member
On a related note, I took 4 clones each of the 2 plants.
The 4 from the other plant shows no issues, but all the clones from this mother look like this.
Also this mother always had different issues while in veg, while the other plant didn't.
These clones have not had any nutes what so ever.
 

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3rd Monkey

Well-Known Member
I see P and K def.

I really don't want to say this, but have you checked for bugs?

Just looks like a little more than a standard def.
 

Capn-Crunch

Well-Known Member
I see P and K def.

I really don't want to say this, but have you checked for bugs?

Just looks like a little more than a standard def.
Yes I checked for bugs, but didn't see any.
I also forgot to mention that the last 2 feedings for the flowering plant I added 1gr. of MKP and 1gr. of Fulvic
acid per gallon of feed water.
The flowering plant truly has me stumped. The clones from that plant seem to have nute burn I think, because I did a runoff test on that
batch of recycled mix and it showed 1200PPM of retained nutrient salts. That's why I haven't fed them anything for 3 weeks.
Could it possibly be phenotype related issues because the clones from that plant are doing the exact same thing the mother
did in veg?
 

CannaCountry

Well-Known Member
I think Mg is your culprit, especially being the symptoms show up on your flowering plants and clones, both. 400ppm of Jack's isn't that much, which would lead me to believe the amount of Epson you're using isn't that much. Looks like your girl is a Mg hog....I'd push her a little more, while adhering to the 3 2 1 ratio (I use Jacks, but w/ coco). If you don't want to run up their ppm, try a foliar spray of just Epson and see if it helps. If it's (Mg) your culprit, you'll know pretty quickly by watching your plant.

You may also want to revisit your pH and be sure it's in line for the style of grow you're working with (Promix). It may be that you need to go up in range just a smidge for better nutrient uptake. Good luck.
 

Capn-Crunch

Well-Known Member
I think Mg is your culprit, especially being the symptoms show up on your flowering plants and clones, both. 400ppm of Jack's isn't that much, which would lead me to believe the amount of Epson you're using isn't that much. Looks like your girl is a Mg hog....I'd push her a little more, while adhering to the 3 2 1 ratio (I use Jacks, but w/ coco). If you don't want to run up their ppm, try a foliar spray of just Epson and see if it helps. If it's (Mg) your culprit, you'll know pretty quickly by watching your plant.

You may also want to revisit your pH and be sure it's in line for the style of grow you're working with (Promix). It may be that you need to go up in range just a smidge for better nutrient uptake. Good luck.
Thanks
 

3rd Monkey

Well-Known Member
Yes I checked for bugs, but didn't see any.
I also forgot to mention that the last 2 feedings for the flowering plant I added 1gr. of MKP and 1gr. of Fulvic
acid per gallon of feed water.
The flowering plant truly has me stumped. The clones from that plant seem to have nute burn I think, because I did a runoff test on that
batch of recycled mix and it showed 1200PPM of retained nutrient salts. That's why I haven't fed them anything for 3 weeks.
Could it possibly be phenotype related issues because the clones from that plant are doing the exact same thing the mother
did in veg?
You just answered your question. 1200 ppm for fresh clones is a little excessive lol.
 

Capn-Crunch

Well-Known Member
You just answered your question. 1200 ppm for fresh clones is a little excessive lol.
I know the salt buildup in the used mix is an issue for the clones of this particular mother, but as I said before the other pheno and
mother are having no issues at all in the same used mix.
This leads me to think that the mother and clones of one plant are genetically predisposed to issues, but I'm not 100% on that.
Thanks for the opinions.
 

3rd Monkey

Well-Known Member
I know the salt buildup in the used mix is an issue for the clones of this particular mother, but as I said before the other pheno and
mother are having no issues at all in the same used mix.
This leads me to think that the mother and clones of one plant are genetically predisposed to issues, but I'm not 100% on that.
Thanks for the opinions.
Do you run different strains? Can they all handle the same nutes? Same amount of water?

I run a Jack Herer/Blueberry cross. Even the same phenos take different nutes. The blueberry phenos take way more potassium and mag in flower, but some take less. Got to feel it out man.
 

Logan Burke

Well-Known Member
Yes I checked for bugs, but didn't see any.
I also forgot to mention that the last 2 feedings for the flowering plant I added 1gr. of MKP and 1gr. of Fulvic
acid per gallon of feed water.
The flowering plant truly has me stumped. The clones from that plant seem to have nute burn I think, because I did a runoff test on that
batch of recycled mix and it showed 1200PPM of retained nutrient salts. That's why I haven't fed them anything for 3 weeks.
Could it possibly be phenotype related issues because the clones from that plant are doing the exact same thing the mother
did in veg?
I think you nailed it on the head...they're the same phenotype as their mamma and will inherently be sensitive to the same issues.
 
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