Question

Choose the correct answer from the alternatives given.
In plants a common symptom caused by deficiencies of Ca, K, Mg and P is the:

• A. appearance of a dead necrotic area
• B. poor development of vasculature
• C. bending of the leaf tip
• D. formation of carotenes in plenty

Answer 1

The correct option is A appearance of a dead necrotic area

Deficiency symptoms of Ca, K, Mg and P appear initially as localized tissue necrosis leading to stunted plant growth, necrotic leaf margins on young leaves or curling of the leaves, and eventual death of terminal buds and root tips.

So the correct answer is "appearance of a dead necrotic area".