Question:
Which one of the following elements can cause necrosis of the young meristematic region, when present in insufficient amounts for plant physiological processes?
Which one of the following elements can cause necrosis of the young meristematic region, when present in insufficient amounts for plant physiological processes?
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Calcium: Immobile nutrient.
Deficiency: Necrosis of young meristems (tips).
Symptoms appear in young leaves first.
Deficiency: Necrosis of young meristems (tips).
Symptoms appear in young leaves first.
Updated On: Sep 1, 2026
- Calcium
- Potassium
- Phosphorus
- Magnesium
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of nutrient deficiency symptoms.
Step 2: Detailed Explanation:
Calcium deficiency causes necrosis of the young meristematic region.
Symptoms include:
- Death of shoot tips and root tips.
- Necrosis (tissue death) in young leaves and meristems.
- Curling and distortion of leaves.
Potassium (B): Deficiency causes marginal chlorosis and necrosis in older leaves.
Phosphorus (C): Deficiency causes stunted growth and purple coloration.
Magnesium (D): Deficiency causes interveinal chlorosis in older leaves.
Thus, calcium deficiency causes necrosis of young meristems.
Step 3: Final Answer:
Thus, calcium deficiency causes necrosis of young meristematic region, which corresponds to option (A).
[0.5cm]
This question tests knowledge of nutrient deficiency symptoms.
Step 2: Detailed Explanation:
Calcium deficiency causes necrosis of the young meristematic region.
Symptoms include:
- Death of shoot tips and root tips.
- Necrosis (tissue death) in young leaves and meristems.
- Curling and distortion of leaves.
Potassium (B): Deficiency causes marginal chlorosis and necrosis in older leaves.
Phosphorus (C): Deficiency causes stunted growth and purple coloration.
Magnesium (D): Deficiency causes interveinal chlorosis in older leaves.
Thus, calcium deficiency causes necrosis of young meristems.
Step 3: Final Answer:
Thus, calcium deficiency causes necrosis of young meristematic region, which corresponds to option (A).
[0.5cm]
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