Grafting is employed for better and quicker yield of good varieties of

Options

A. Apple
B. Citrus
C. Mango
D. All the above

Answer

### Step-by-Step Solution:

1. **Understanding Grafting**: Grafting is a horticultural technique where tissues from one plant are inserted into those of another so that the two sets of vascular tissues may join together. This method is commonly used to propagate plants.

2. **Identifying Suitable Plants**: The question mentions four options: Apple, Citrus, Mango, and asks which of these can benefit from grafting for better and quicker yields. All these plants are dicots, which are suitable for grafting.

3. **Benefits of Grafting**: Grafting allows for the combination of the best traits from two different plants. The rootstock (the part that provides the root system) can be selected for its hardiness or disease resistance, while the scion (the part that becomes the new plant) can be selected for its fruit quality or yield.

4. **Analyzing the Options**:
- **A. Apple**: Grafting is commonly used in apple cultivation to improve yield and quality.
- **B. Citrus**: Citrus trees are also frequently grafted to enhance fruit production and disease resistance.
- **C. Mango**: Mango trees can be grafted to ensure the propagation of superior varieties with better yields.
- **D. All of the above**: Since all three options (Apple, Citrus, Mango) can be grafted for better yields, this option is valid.

5. **Conclusion**: Since grafting is beneficial for all the mentioned varieties, the correct answer is **D. All of the above**.