The Question is from neet-botany mineral-nutrition , and it was created by the author B VENKAT

Question

‘mottled chlorosis’ on the leaves occurs due to the deficiency of

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
**Primary Concept**: Plant nutrient deficiencies and their associated symptoms.
**Related Topics**: Plant physiology, Mineral nutrition in plants, Chlorosis.
**Prerequisites**: Basic knowledge of plant nutrition and common deficiency symptoms.
## SOLUTION PATHWAY
**Given Information**:
  * The question asks about the cause of 'mottled chlorosis' in leaves.
**Method & Steps**:
1. **Recall the function of plant nutrients:** Understand that different nutrients play specific roles in plant growth and development.
    Reasoning: Each nutrient's deficiency manifests in unique ways.
2.  **Identify the nutrient causing mottled chlorosis:** Recall that potassium deficiency is often associated with mottled chlorosis.
    Working: Mottled chlorosis is a characteristic symptom of potassium deficiency, where yellowing occurs between the veins of older leaves.
3. **Select the correct answer:** Based on step 2, choose option C, potassium.
  Result: Option C is the correct answer.
Verification: Based on plant physiology knowledge, potassium deficiency leads to mottled chlorosis.
## OPTION ANALYSIS
[A] :x: Nitrogen deficiency causes general chlorosis, usually starting in older leaves.
[B] :x: Phosphorus deficiency usually results in stunted growth and purplish coloration, not mottled chlorosis.
[C] ✓: Potassium deficiency is a common cause of mottled chlorosis, particularly in older leaves.
[D] :x: Sulphur deficiency causes general chlorosis in younger leaves.
## LEARNING AIDS
**Common Mistakes**:
1. Confusing the symptoms of different nutrient deficiencies: Learn the specific symptoms associated with each major plant nutrient deficiency.
2.  Assuming all chlorosis is the same: Note that chlorosis can have different patterns based on the nutrient that is deficient.
**Quick Tips**:
1.  Use visual aids: Look at images of nutrient deficiency symptoms to remember the visual clues.
2.  Create a table: Make a table summarizing the symptoms of each major plant nutrient deficiency.

B VENKAT · Answer

Nitrogen

B VENKAT · Answer

Phosphorus

B VENKAT · Answer

The correct Option is "Potassium"

B VENKAT · Answer

Sulphur

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