Question

Plants growing in Mg deficient soil will show

• A. Deep gree foliage
• B. Early flowering
• C. Yellowing of leaves
• D. Loss of pigmentation in petals

Answer 1

The correct option is C Yellowing of leaves

Magnesium is a macronutrient, absorbed by the plant in the form of Mg++ ions. It is a constituent of the ring structure of chlorophyll. It activates the enzymes of respiration, photosynthesis and are involved in the synthesis of DNA and RNA. In it's deficiency, plant will show yellowing of leaves, marginal curling and pre mature leaf abscission.

So, the correct answer is 'Yellowing of leaves'.