Question

Toxicity of which micronutrient induces deficiency of iron, magnesium and calcium ?

• A. Boron
• B. Zinc
• C. Molybdenum
• D. Manganese

Answer 1

The Correct Option is D

The correct answer is (D) : Manganese.

Answer 2

The correct answer is: (D) Manganese.

Manganese is a micronutrient that, when present in excess, can lead to toxicity in plants. Interestingly, manganese toxicity can interfere with the uptake and assimilation of other essential nutrients, including iron, magnesium, and calcium. This is because high levels of manganese can disrupt the balance of nutrient uptake by competing with these elements for absorption in plant roots.

Excess manganese affects the transport systems in plant cells, preventing the efficient absorption of other micronutrients and macronutrients. This nutrient imbalance results in deficiencies of iron, magnesium, and calcium, which can severely affect plant growth and development.

Therefore, manganese toxicity is a significant issue in plants, especially in soils with high manganese levels, leading to nutrient deficiencies that impact overall plant health.