Flowering in Pineapple is promoted by

Options

A. GA
B. IAA
C. Ethylene
D. Both B and C.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the promotion of flowering in pineapple, which is influenced by various factors including hormones.

2. **Identifying the Options**: The options given are:
- A) Gibberellic acid (GA)
- B) Indole acetic acid (IAA)
- C) Ethylene
- D) Both B and C

3. **Analyzing the Role of Hormones**:
- **Gibberellic Acid (GA)**: This hormone is known to promote fruit development rather than flowering in pineapple.
- **Indole Acetic Acid (IAA)**: This is a type of auxin, which is involved in various growth processes, including flowering.
- **Ethylene**: This hormone plays a crucial role in the flowering process of many plants, including pineapple.

4. **Considering External Factors**: Flowering in pineapple is also influenced by external factors such as temperature and day length. Low temperatures can stimulate the production of ethylene, which is important for flowering.

5. **Conclusion**: Since both IAA and ethylene are involved in promoting flowering in pineapple, the correct answer is D) Both B and C.

**Final Answer**: Flowering in pineapple is promoted by both Indole acetic acid (IAA) and Ethylene.

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