Which one among the following is not a micronutrient for plants?

The correct answer is  Magnesium.

Key PointsMicronutrients for Plants

• Micronutrients are essential elements needed by plants in very small quantities but are crucial for their growth and development.
• Iron (Fe) is a micronutrient that is essential for chlorophyll synthesis and acts as a cofactor for many enzymes.
• Manganese (Mn) functions in enzyme activation and is involved in processes like photosynthesis and nitrogen metabolism.
• Magnesium (Mg), although a crucial element, is a macronutrient and not a micronutrient. It is a central component of chlorophyll and is involved in photosynthesis and enzyme activation.
• Chlorine (Cl) is a micronutrient. It plays a role in osmotic regulation and photosynthesis.

Additional Information

• Micronutrients are generally needed in trace amounts but are vital for the proper functioning of plants. They include elements like Iron (Fe), Manganese (Mn), Zinc (Zn), Copper (Cu), Molybdenum (Mo), Boron (B), and Chlorine (Cl).
• Iron (Fe) is crucial for the formation of chlorophyll and is involved in oxygen transport and cellular respiration.
• Manganese (Mn) is involved in photosynthesis, respiration, and nitrogen assimilation.
• Magnesium (Mg), although not a micronutrient, is a central atom in the chlorophyll molecule and is essential for enzyme activation and photosynthesis.
• Chlorine (Cl) is involved in osmotic and ionic balance within the plant cells and plays a role in the photosynthetic water-splitting reaction.
• Understanding the role of micronutrients is essential for agriculture and horticulture, as their deficiency can lead to poor plant growth and reduced crop yields.