Little leaf is deficiency symptom of

Options

A. Zn
B. Mn
C. Fe
D. B

Answer

### Step-by-Step Solution:

1. **Understanding Little Leaf**:
- Little leaf is a deficiency symptom that manifests as small leaves on plants. It is important to identify the nutrient deficiency that leads to this condition.

2. **Identifying Essential Nutrients**:
- Plants require various essential nutrients for their growth and development. A deficiency in any of these nutrients can lead to specific symptoms or diseases.

3. **Analyzing the Options**:
- The question provides several options, including Zinc, Iron, and Boron. We need to analyze each option to determine which one is associated with the little leaf symptom.

4. **Zinc Deficiency**:
- Zinc deficiency is known to cause leaf malformation, including the little leaf symptom. It leads to small leaves, leaf rosettes, leaf curling, intervenal chlorosis (where the areas between the veins turn yellow), and leaf distortion.

5. **Iron Deficiency**:
- Iron deficiency primarily causes chlorosis in young leaves, particularly intervenal chlorosis, but does not typically result in the little leaf symptom. The veins remain green, and growth is reduced, but the leaves do not become small.

6. **Boron Deficiency**:
- Boron deficiency can lead to the loss of apical dominance and issues with flower abscission, but it does not specifically cause the little leaf symptom.

7. **Conclusion**:
- Based on the analysis, the nutrient responsible for the little leaf symptom is Zinc. Therefore, the correct answer is Zinc.

### Final Answer:
**Zinc is the element responsible for the deficiency symptom of little leaf.**

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