When the dark period of short day plants is intrrupted by a brief exposure of light, then the plant

Options

A. Will not flower at all
B. Flowers immediately
C. Gives more flowers
D. Turns into a long day plant.

Answer

**Step-by-Step Solution:**

1. **Understanding Short Day Plants**: Short day plants are those that require longer periods of darkness (or shorter periods of light) to initiate flowering. They typically flower when the duration of light is less than a critical length.

2. **Role of Darkness in Flowering**: For these plants, the uninterrupted dark period is crucial. If the dark period is interrupted, it can affect the plant's ability to flower.

3. **Effect of Light Interruption**: The question states that the dark period of a short day plant is interrupted by a brief exposure to light. This brief light exposure can disrupt the necessary conditions for flowering.

4. **Conclusion on Flowering**: Since the dark period is interrupted, the plant may not receive the necessary signals to flower. Therefore, it will either not flower at all or may experience delayed flowering.

5. **Choosing the Correct Option**: Among the given options:
- "Will not flower at all" is correct because the interruption can nullify the dark period's effect.
- "Flowers immediately" is incorrect as the interruption does not promote immediate flowering.
- "Gives more flowers" is also incorrect since the interruption does not enhance flowering.
- "Turns into a long day plant" is incorrect because the plant remains a short day plant regardless of the interruption.

6. **Final Answer**: The correct answer is that the plant "will not flower at all."

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