Photoperiodism is probably due to the sythesis of

Options

A. Cytokinins
B. Gibberllins
C. Auxin
D. Florigen

Answer

**Step-by-Step Solution:**

1. **Understand Photoperiodism**: Photoperiodism is the physiological reaction of organisms to the length of day or night. In plants, this phenomenon is crucial for determining the timing of flowering and other developmental processes.

2. **Identify the Options**: The question provides four options related to plant hormones and compounds:
- Option 1: Cytokinins
- Option 2: Gibberellins
- Option 3: Auxins
- Option 4: Florigen

3. **Analyze Each Option**:
- **Cytokinins**: These are hormones that promote cell division but are not primarily responsible for photoperiodic responses.
- **Gibberellins**: These hormones are known to promote growth and are involved in the flowering process, particularly in long-day plants.
- **Auxins**: These hormones are primarily involved in cell elongation and are not directly responsible for the photoperiodic response.
- **Florigen**: This is a flowering hormone that is produced in response to photoperiod and is believed to be involved in the signaling pathway for flowering.

4. **Determine the Correct Answer**: While gibberellins play a role in flowering, the synthesis of florigen is directly linked to the photoperiodic response in plants. Florigen is produced in response to the length of daylight and triggers flowering.

5. **Conclusion**: The correct answer to the question "Photoperiodism is probably due to the synthesis of" is **Option 4: Florigen**.

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