In a tissue culture nedia, the resource of the phytohormone is:

Options

A. agar agar
B. glucose
C. micronutrients
D. coconut milk

Answer

**Step-by-Step Solution:**

1. **Understanding Phytohormones**: Phytohormones are plant hormones that play a crucial role in regulating various physiological processes in plants, including growth, development, and responses to environmental stimuli.

2. **Identifying the Components of Tissue Culture Media**: In tissue culture, various components are used to create an optimal environment for plant cells to grow. Common components include agar-agar (a gelling agent), glucose (a source of energy), micronutrients (essential for growth), and phytohormones.

3. **Analyzing the Options**:
- **Agar-agar**: This is primarily used as a gelling agent and does not provide phytohormones.
- **Glucose**: While it serves as an energy source, it does not contain phytohormones.
- **Micronutrients**: These are essential for plant growth but are not hormones themselves.
- **Coconut Milk**: This is known to contain natural phytohormones, making it a suitable resource for providing these hormones in tissue culture media.

4. **Conclusion**: Based on the analysis, the correct resource of phytohormones in tissue culture media is **coconut milk**.

**Final Answer**: Coconut milk.

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