State: Three merits of tissue culture in Plant propagation.

Answer

**Step-by-Step Text Solution:**

1. **Understanding Tissue Culture**:
Tissue culture is an in vitro technique used for the regeneration of whole plants from any part of a plant, such as stems or leaves. This process involves growing plant tissues on a culture medium under aseptic conditions.

2. **Merit 1: Rapid Production of Plants**:
One of the primary advantages of tissue culture is that it allows for the rapid production of a large number of plants in a short amount of time. Since a single plant can provide numerous tissues, even a small portion can be cultured to produce many new plants quickly.

3. **Merit 2: Disease-Free Plants**:
Tissue culture can also be used to obtain disease-free plants. For instance, if a plant is infected, a healthy part (like a leaf) can be taken and cultured in a laboratory. This process helps in regenerating new plants that are free from diseases, thus conserving valuable plant species.

4. **Merit 3: Multiplication of Seedless Plants**:
Another significant merit of tissue culture is its ability to multiply seedless plants. While seeds are the usual means of plant propagation, some plants do not produce seeds. Tissue culture provides a method to propagate these seedless varieties effectively.

**Summary of Merits**:
- Rapid production of a large number of plants.
- Ability to produce disease-free plants.
- Capability to multiply seedless plants.

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