University of Maryland Extension

internal whitening

Tomato Ripening Problems and the Role of Potassium

August 2009 Over the last few months in our area there have appeared problems with tomato ripening. The ripening problems are called various names such as blotchy ripening, yellow shoulder, grey wall, internal whitening, etc (Fig 1). They all have the same root cause; lower levels of potassium (K...
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