One of the important roles of cytokinin is

Options

A. help to produce new leaves
B. to check abscission
C. to mobilise fats from one part to the other.
D. to overcome dormancy

Answer

**Step-by-Step Solution:**

1. **Understanding Cytokinins**: Cytokinins are a class of plant hormones that play a crucial role in various plant growth and developmental processes. They are primarily produced in the roots and are involved in cell division and growth.

2. **Identifying the Roles of Cytokinins**: Among the various functions of cytokinins, we need to focus on the options provided:
- Option 1: Help to produce new leaves
- Option 2: To check abscission
- Option 3: To mobilize fats from one part to another
- Option 4: To overcome dormancy

3. **Evaluating Each Option**:
- **Option 1**: Cytokinins are known to stimulate shoot growth and promote the development of new leaves. This is a well-established role of cytokinins.
- **Option 2**: While cytokinins can influence leaf longevity and delay senescence, their primary role is not specifically to check abscission (the process of leaf drop).
- **Option 3**: Cytokinins do not have a significant role in the mobilization of fats; this function is more associated with other hormones like gibberellins.
- **Option 4**: Cytokinins can help in overcoming dormancy, but this is not their primary function compared to promoting leaf production.

4. **Conclusion**: Based on the evaluation, the most important role of cytokinins among the options provided is to help produce new leaves.

**Final Answer**: One of the important roles of cytokinin is to help produce new leaves.

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