Spraying of conifers with which hormone hastens the maturity period and thus leading to early seed production ?

Options

A. The hormone which also causes bolting in some plants
B. The hormone which is activated during deficiency of water
C. The hormone which responsible for apical dominance
D. The hormone which prevents apical dominance is plants

Answer

To solve the question regarding which hormone, when sprayed on conifers, hastens the maturity period and leads to early seed production, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Context**: The question is about plant hormones and their effects on growth and maturity in conifers.

2. **List the Main Plant Hormones**: There are five primary plant hormones (phytohormones) to consider:
- Auxins
- Gibberellins
- Cytokinins
- Abscisic Acid
- Ethylene

3. **Understand the Role of Each Hormone**:
- **Auxins**: Primarily involved in cell elongation and apical dominance.
- **Gibberellins**: Promote stem elongation, seed germination, and flowering. They are known to hasten maturity in some plants.
- **Cytokinins**: Promote cell division and can delay aging in plants.
- **Abscisic Acid**: Involved in stress responses and can cause stomatal closure.
- **Ethylene**: Involved in fruit ripening and flower wilting.

4. **Focus on Gibberellins**: Among these hormones, gibberellins are specifically known to hasten the maturity period of juvenile plants, including conifers, leading to early seed production.

5. **Conclusion**: The hormone that hastens the maturity period and leads to early seed production in conifers is **Gibberellins**.

### Final Answer:
The hormone that hastens the maturity period and leads to early seed production in conifers is **Gibberellins**.

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