Caulogenesis is due to

Options

A. More auxin than cytokinin
B. Gibberellin
C. More cytokinin than auxin
D. Abscisic acid

Answer

**Step-by-Step Solution:**

1. **Understanding Caulogenesis**:
- Caulogenesis refers to the formation of shoots or stems (also known as caulogenesis) from plant tissues. This process is particularly important in plant tissue culture and regeneration.

2. **Identifying the Role of Plant Hormones**:
- Plant hormones play a crucial role in regulating various physiological processes, including growth and development. The key hormones involved in caulogenesis are auxins and cytokinins.

3. **Analyzing the Options**:
- The options given are:
a) More auxin than cytokinin
b) Gibberellins
c) More cytokinin than auxin
d) Abscisic acid
- We need to determine which option correctly describes the hormonal balance necessary for caulogenesis.

4. **Evaluating Each Option**:
- **Option a (More auxin than cytokinin)**: This is incorrect because a higher concentration of auxin typically promotes root formation rather than shoot formation.
- **Option b (Gibberellins)**: Gibberellins are primarily involved in seed germination and stem elongation, not in caulogenesis. Thus, this option is also incorrect.
- **Option c (More cytokinin than auxin)**: This option is correct. Cytokinins promote cell division and shoot formation, and a higher concentration of cytokinins relative to auxins is conducive to caulogenesis.
- **Option d (Abscisic acid)**: Abscisic acid is involved in stress responses and does not promote caulogenesis, making this option incorrect.

5. **Conclusion**:
- The correct answer is **c) More cytokinin than auxin**, as this hormonal balance is essential for the process of caulogenesis.

---