Induction of rooting on stems before separating them from parent plant is

Options

A. grafting
B. layering
C. root-stem joint
D. cutting

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the process of inducing roots on stems before they are separated from the parent plant.

2. **Identifying the Options**: The options provided are grafting, layering, root, stem joint, and cutting. We need to determine which of these methods involves inducing roots on a stem while it is still attached to the parent plant.

3. **Analyzing Each Option**:
- **Grafting**: This is a method where a stem from one plant is joined to the root system of another plant. It does not involve rooting of the stem before separation.
- **Layering**: This technique involves partially burying a stem in the soil while it is still attached to the parent plant. Roots develop at the buried part, and once they are established, the stem can be cut and separated from the parent plant.
- **Root**: This is not a method; it refers to the part of the plant that absorbs water and nutrients.
- **Stem Joint**: This term is not commonly used in the context of plant propagation and does not refer to a rooting method.
- **Cutting**: This method involves taking a piece of the stem and planting it in the soil to grow roots, but it does not involve the stem being attached to the parent plant during the rooting process.

4. **Conclusion**: Based on the analysis, the correct answer is **layering**. In layering, the stem is buried in the soil while still attached to the parent plant, allowing roots to develop before it is separated.

5. **Final Answer**: The induction of rooting on stems before separating them from the parent plant is called **layering**.

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