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Old 3 Weeks Ago   #1
Salsacharley
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Default Another Strange Condition

These 2 tomatoes were just harvested from a plant in a row of many other tomato and pepper plants. I mislabeled the variety so I don't know what it is, but is possibly Rebel Yell. Does anybody know what causes the yellow?
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Old 3 Weeks Ago   #2
Worth1
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How far are you from Roswell I just saw your other thread.

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Old 3 Weeks Ago   #3
MissS
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From what I understand, it indicates a potassium deficiency in your soil.
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Old 3 Weeks Ago   #4
KarenO
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It is a disorder known as yellow shoulders. Often heat related.
https://agdev.anr.udel.edu/weeklycropupdate/?p=3457


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Last edited by KarenO; 3 Weeks Ago at 07:11 PM.
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Old 3 Weeks Ago   #5
Salsacharley
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How about that! Yellow shoulders it is, which according to the article Karen provided also involves potassium defeciency.

Thank you for the info. Fortunately I only have 1 plant with this situation, and I think the remaining fruit are not afflicted.
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Old 3 Weeks Ago   #6
RayR
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Yellow shoulders is a similar condition as Blotchy ripening.
It doesn't indicate there are deficiencies of nutrients like K in the soil, but high stress factors on the plant can interfere with normal nutrient uptake and movement of nutrients to the fruit.
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Old 3 Weeks Ago   #7
KarenO
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That is correct. it is multifactorial and heat is often implicated. I have some affected this year as well.

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Old 3 Weeks Ago   #8
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My opinion, as stated in the quite similar recent thread is that most likely is due to high pH, excess Ca. These are the only problems I saw in some friend's garden with similar problems. It's just a not really proven observation (of course, high Ca could maybe mean lack of K absorption, but then I don't understand why the taste was surprisingly good.).
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Old 2 Weeks Ago   #9
MissS
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It's a funny thing that you should say that. Before I knew that this was a condition, I always tried to buy seeds that showed pictures of fruits with yellow shoulders. When I was a newbie, I grew some tomatoes that had yellow shoulders and they were THE BEST tomatoes of the year as far as flavor went. I just did not remember which variety that they were. Now I wonder if it was the yellow shoulders or the variety that made these maters taste so very good to me.
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