Plant parts affected

Lower leaves

Initial diagnosis:

The deficient crop appears as if wilted in dry and hot weather conditions. Marginal scorching of older leaves is a typical symptom of potassium deficiency.

Symptoms:

Symptoms develop as a yellow-brown marginal and interveinal chlorosis. As the symptoms advance, necrosis starts from the leaf margins. Eventually leaves become necrotic and die.

Damage type:

The overall growth of deficient plants is reduced. Internodes become shorter. The younger leaves appear smaller.