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Old 10-04-2018, 02:03 PM #1
Cpot23
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Lightbulb High potassium side effects

I have been battling with hermies for weeks now and the nugs have been seeming to foxtail. Some worse than others. Just realized I've been adding about three times the amount of potassium sulfate I should've been, I'm curious if this potassium level issue could be the problem? I've been thinking that my lights were too intense or the genetics were bad but this seems to make more sense to me now as the other solo strains decided to hermie as well

If so, would you say I have enough time for the plants to fill out? Is there anything I can add/take out to help the issue?
I'm in week 7 of flower
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Old 10-04-2018, 03:29 PM #2
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Not sure if this applies, but I recently put a lot of pH up (potassium carbonate) in my res the last month of flower. Grew some beasters of rather low quality, but no hermi or foxtailing issues. Nice white ash though. lol
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Old 10-04-2018, 04:05 PM #3
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Foxtailing can be caused by genetics and/or excessive heat.
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Old 10-04-2018, 05:09 PM #4
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I always thought it was high nitrogen towards the end that predominately caused foxtailing
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Old 10-04-2018, 06:16 PM #5
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I think there is genetic fox tailing, which you will get regardless of of growing area, and stress caused fox tailing, most generally heat or light stress, but if you locked out one of your other elements that would be stressful for the plant as well. Pictures always paint a thousand words
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Old 10-04-2018, 08:48 PM #6
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Originally Posted by AgentPothead View Post
I think there is genetic fox tailing, which you will get regardless of of growing area, and stress caused fox tailing, most generally heat or light stress, but if you locked out one of your other elements that would be stressful for the plant as well. Pictures always paint a thousand words
I think you're right. I believe it's a mixture of that and bad genetics. I got these seeds from a friend of a friend that was made his own strain. I also had a light intensity problem. I'm not too concerned, this grow has been a huge learning experience so I'm just happy to figure it out.
But I would assume any type of stress would do this
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Old 10-04-2018, 09:36 PM #7
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Lost in a SOG is correct, high N. It's getting to be fairly common knowledge that too much N late in flowering is one of the best ways to cause hermies. Those of us who practice N starving hardly ever see them. I have at least 4 heirloom clones that are known hermies. None of them have ever shown a hermie flower in over 10 years in my care, probably because I N starve. Of course there is a genetic component to hermie-ism as well. Some will be no matter what you do. Same with foxtailing. It's a mix of things like excess heat, excess N and genetics all playing together.
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