Which method is suitable to determine chlorosis in a mustard plant?

Options

A. Aeroponics
B. Growth in clayey soil
C. Hydroponics
D. Sand culture

Answer

To determine chlorosis in a mustard plant, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Chlorosis**:
- Chlorosis is a condition in plants characterized by yellowing of leaves due to insufficient chlorophyll production. This can be caused by various factors, including nutrient deficiencies, diseases, or environmental stress.

2. **Identifying Methods of Cultivation**:
- Several methods can be used to grow plants, including aeroponics, clayey soil, hydroponics, and sand culture. Each method has its own advantages and disadvantages in terms of nutrient availability and plant health.

3. **Evaluating Aeroponics**:
- Aeroponics involves growing plants in an air or mist environment without soil. While it can help in studying certain plant conditions, it is not suitable for mustard plants as they typically require soil for nutrient uptake.

4. **Evaluating Growth in Clayey Soil**:
- Growing mustard plants in clayey soil can provide nutrients, but it is not specifically designed to determine chlorosis. Clayey soil is more about water retention and nutrient availability rather than diagnosing plant health issues.

5. **Evaluating Hydroponics**:
- Hydroponics is a method where plants are grown in a nutrient-rich water solution. This method allows for precise control over nutrient levels, making it easier to identify deficiencies that may lead to chlorosis. Therefore, this method is suitable for determining chlorosis in mustard plants.

6. **Evaluating Sand Culture**:
- Sand culture involves growing plants in sand without soil. While it can be used for certain experiments, it is not ideal for mustard plants, which thrive better in nutrient-rich environments.

7. **Conclusion**:
- Based on the evaluations, the most suitable method to determine chlorosis in a mustard plant is **hydroponics**. This method allows for the assessment of nutrient deficiencies that lead to chlorosis.

### Final Answer:
The suitable method to determine chlorosis in a mustard plant is **hydroponics**.

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