Multiple choice

Exanthema, a disease of citrus plant, is caused due the deficiency of

  1. zinc

  2. magnesium

  3. manganese

  4. copper
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Exanthema is a physiological disorder in citrus plants caused by a deficiency of copper. It is characterized by the formation of gum pockets under the bark and the dying back of young twigs.

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