Low temperature treatment to speed up the process of flowering is referred to as

Options

A. vernalisation
B. Cryobiology
C. Photoperiodism
D. Pruning

Answer

To solve the question about the low temperature treatment that speeds up the process of flowering, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the term that refers to the low-temperature treatment used to accelerate flowering in plants.

2. **Analyze the Options**:
- **Option A: Granulization** - This term does not relate to flowering or temperature treatment.
- **Option B: Cryobiology** - This is the study of the effects of low temperatures on living organisms, but it is not specifically about flowering.
- **Option C: Photoproduction** - This term relates to the production of light or the effects of light on plants, not temperature.
- **Option D: Vernalization** - This is the process of exposing plants to a prolonged period of cold temperatures to induce flowering.

3. **Identify the Correct Term**: Based on the analysis, the correct term that describes the low-temperature treatment to speed up flowering is **Vernalization**.

4. **Explain Vernalization**: Vernalization is a process where certain plants, especially winter varieties, require a period of cold to transition from the vegetative phase to the flowering phase. This treatment shortens the juvenile phase and hastens flowering.

5. **Conclude**: Therefore, the answer to the question is **Vernalization**.

### Final Answer:
The low temperature treatment to speed up the process of flowering is referred to as **Vernalization**.

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