While planning for an articifical hybridisation programmme involving dioecious plants, which of the following steps would not be relevent?

Options

A. Bagging of female flower
B. Dusting of pollen on stigma
C. Emasculation
D. Collection of pollen

Explanation

To determine which step would not be relevant in an artificial hybridization program involving dioecious plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Dioecious Plants**:
- Dioecious plants are those that have unisexual flowers, meaning they have either male or female reproductive structures, but not both in the same plant. This means that one plant will produce only male flowers and another will produce only female flowers.

2. **Identify the Steps in Artificial Hybridization**:
- The steps typically involved in artificial hybridization include:
- Bagging of female flowers to prevent unwanted pollination.
- Dusting of pollen onto the stigma of the female flower.
- Collection of pollen from male flowers.
- Emasculation, which involves the removal of male reproductive parts (stamens) from a flower to prevent self-pollination.

3. **Analyze the Relevance of Each Step**:
- **Bagging of Female Flowers**: This is relevant as it prevents contamination from other pollen sources.
- **Dusting of Pollen**: This is necessary to ensure that the female flower receives pollen from the desired male plant.
- **Collection of Pollen**: This is also relevant as it is essential to gather pollen from male flowers for fertilization.
- **Emasculation**: This step is not relevant for dioecious plants because emasculation is used to prevent self-pollination in plants that have both male and female parts. Since dioecious plants do not have both parts, emasculation is unnecessary.

4. **Conclusion**:
- The step that would not be relevant in an artificial hybridization program involving dioecious plants is **emasculation**.

### Final Answer:
**Emasculation** is the step that would not be relevant in an artificial hybridization program involving dioecious plants.

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