Most common method of inducing polyploidy

Options

A. Cold treatment
B. Using X - rays
C. Colchicine treatment
D. Acenaphthene treatment

Answer

**Step-by-Step Solution:**

1. **Understanding Polyploidy**: Polyploidy refers to a condition in which an organism has more than two complete sets of chromosomes. This is common in plants and can lead to increased size and vigor.

2. **Methods of Inducing Polyploidy**: There are several methods to induce polyploidy in plants, including cold treatment, x-rays, colchicin treatment, and acid naphthalene treatment.

3. **Analyzing the Options**:
- **Cold Treatment**: This method is not commonly used for inducing polyploidy.
- **X-rays**: While x-rays can induce mutations, they are not the primary method for inducing polyploidy.
- **Colchicin Treatment**: Colchicin is a well-known chemical that inhibits mitosis by preventing the formation of spindle fibers, leading to improper segregation of chromosomes and resulting in polyploidy.

4. **Conclusion**: Among the options provided, colchicin treatment is the most common and effective method for inducing polyploidy in plants.

5. **Final Answer**: The most common method of inducing polyploidy is **colchicin treatment**.

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