Crop improvement is possible through

Options

A. Judicious combination of evaluation and selection hybridisation and testing and commercialisation
B. Selection and hybridisation only
C. Scientific improvement of cultivated plants
D. Selection and testing of superior recombinants

Answer

To solve the question "Crop improvement is possible through," we need to analyze the options provided and understand the processes involved in crop improvement.

### Step-by-Step Solution:

1. **Understanding Crop Improvement**:
Crop improvement refers to the methods used to enhance the genetic quality of crops to increase yield, disease resistance, and other desirable traits.

2. **Evaluating the Options**:
- **Option 1**: Judicious combination of evaluation, selection, hybridization, and testing and commercialization.
- **Option 2**: Selection and hybridization only.
- **Option 3**: Scientific improvement of cultivated plants.
- **Option 4**: Selection and testing of superior P components.

3. **Analyzing Option 1**:
- **Evaluation**: This involves assessing the traits of different plants to identify those with desirable characteristics.
- **Selection**: Choosing plants with the best traits for breeding.
- **Hybridization**: Crossing selected plants to combine desirable traits from both parents.
- **Testing and Commercialization**: Growing the hybrid plants under controlled conditions to evaluate their performance and then bringing them to market.

4. **Analyzing Other Options**:
- **Option 2**: Only mentions selection and hybridization, which are important but not sufficient alone for comprehensive crop improvement.
- **Option 3**: Vague and does not specify the methods involved.
- **Option 4**: Focuses only on selection and testing, missing out on hybridization.

5. **Conclusion**:
The first option is the most comprehensive as it includes all necessary steps for effective crop improvement: evaluation, selection, hybridization, testing, and commercialization.

### Final Answer:
**Crop improvement is possible through the judicious combination of evaluation, selection, hybridization, and testing and commercialization (Option 1).**

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