Tea and Cocoa are propagated by

Options

A. layering
B. stem cuttings
C. grafting
D. bud grafting

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks how tea and cocoa plants are propagated. We need to identify the correct method of vegetative propagation from the given options.

2. **Identifying the Options**: The options provided are:
- Layering
- Stem Cutting
- Grafting
- Bud Grafting

3. **Defining Vegetative Propagation**: Vegetative propagation is a method of asexual reproduction in plants where new individuals are developed from vegetative parts without the formation of seeds or spores.

4. **Explaining Each Method**:
- **Layering**: This involves bending a branch to the ground and covering it with soil to encourage rooting while still attached to the parent plant. This method is commonly used in citrus plants.
- **Stem Cutting**: This method involves cutting a part of the stem and planting it in soil. It is widely used for many plants, including roses.
- **Grafting**: This technique involves joining parts from two different plants so that they grow together. The upper part is called the scion, and the lower part is the rootstock.
- **Bud Grafting**: A specific type of grafting where a bud is taken from one plant and grafted onto another plant.

5. **Determining the Correct Method for Tea and Cocoa**: After reviewing the methods, it is established that tea and cocoa are propagated through stem cutting. This method is effective for these plants as it allows for the development of new plants from cut sections of the stem.

6. **Final Answer**: Therefore, the correct answer is that tea and cocoa are propagated by **stem cutting**.

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