Which one of the following is not used for ex situ plant conservation

Options

A. Shifting cultivation
B. Botanical Gandens
C. Fields gene banks
D. Seed banks

Answer

### Step-by-Step Solution:

1. **Understanding Ex Situ Conservation**: Ex situ conservation refers to the conservation of species outside their natural habitats. This can include various methods such as botanical gardens, seed banks, and field gene banks.

2. **Identifying the Options**: The options provided are:
- A) Shifting cultivation
- B) Botanical gardens
- C) Field gene banks
- D) Seed banks

3. **Analyzing Each Option**:
- **Botanical Gardens**: These are used for ex situ conservation as they house living plants for research, education, and conservation purposes.
- **Field Gene Banks**: These preserve genetic material of plants in their natural environment, which is also a form of ex situ conservation.
- **Seed Banks**: These store seeds to preserve the genetic diversity of plants and are a crucial part of ex situ conservation.

4. **Evaluating Shifting Cultivation**: Shifting cultivation involves clearing land for agriculture, which often leads to deforestation and does not involve the conservation of plants outside their natural habitat. Instead, it is a method of land use that can negatively impact biodiversity.

5. **Conclusion**: Based on the analysis, the correct answer is that **shifting cultivation is not used for ex situ plant conservation**.

### Final Answer:
Shifting cultivation is not used for ex situ plant conservation.

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