name the tissue culture technique used to grow nonviable interspecific hybirds

Options

A. Androgenic haplodis
B. Shoot tip culture
C. Somatic embrygenesis
D. Embryo rescue.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the tissue culture technique that is specifically used to grow nonviable interspecific hybrids. Interspecific hybrids are the result of crossing two different species.

2. **Identifying the Options**: The options provided are:
- Androgenic
- Applied shoot tip culture
- Somatic embryogenesis
- Embryo rescue

3. **Analyzing the Options**:
- **Androgenic**: This technique is used to produce haploids from pollen grains and is not directly related to interspecific hybrids.
- **Applied shoot tip culture**: This involves culturing the terminal portion of a shoot and is used for plant propagation, not specifically for interspecific hybrids.
- **Somatic embryogenesis**: This is a process where an embryo is formed from somatic cells, but it does not specifically address the issue of nonviable interspecific hybrids.
- **Embryo rescue**: This technique involves the culture of immature embryos to produce viable individuals. It is particularly useful for overcoming post-fertilization barriers that lead to the abortion of hybrid embryos.

4. **Conclusion**: Based on the analysis, the correct answer is **Embryo rescue**. This technique allows for the growth of nonviable interspecific hybrids by culturing immature embryos before they abort.

**Final Answer**: The tissue culture technique used to grow nonviable interspecific hybrids is **Embryo rescue**.

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