"Reclamation" and "Little leaf" disease, caused by deficency of

Options

A. Zn and Mo
B. Cu and Zn
C. Cu and B
D. Mn and Cu

Answer

### Step-by-Step Solution:

1. **Understanding Reclamation Disease**:
- Reclamation disease primarily affects crops, especially cereals, and is commonly found in newly reclaimed peat lands.
- The deficiency responsible for this disease is copper. In plants affected by this disease, the leaf tips become chlorotic (yellow) and there is a failure to set seeds.

2. **Identifying the Symptoms of Reclamation Disease**:
- The key symptoms include:
- Chlorotic leaf tips
- Failure to set seed
- This indicates that copper deficiency is a critical factor in the occurrence of reclamation disease.

3. **Understanding Little Leaf Disease**:
- Little leaf disease, also known as dwarf leaves, is characterized by the presence of small leaves that often show chlorosis (yellowing).
- This disease is caused by a deficiency of zinc.

4. **Identifying the Symptoms of Little Leaf Disease**:
- The symptoms include:
- Small leaves
- Chlorosis (yellowing of leaves)
- Necrotic spots or bronzing of the leaves
- This indicates that zinc deficiency is crucial for the manifestation of little leaf disease.

5. **Conclusion**:
- Based on the analysis of both diseases, reclamation disease is caused by copper deficiency, and little leaf disease is caused by zinc deficiency.
- Therefore, the correct answer from the options provided is **"Copper and Zinc."**

### Final Answer:
The diseases "Reclamation" and "Little Leaf" are caused by the deficiency of **Copper and Zinc**.

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