Shelf life of vegetables and out flowers can be increased by commercial application of

Options

A. Cytokinin
B. AMO1618
C. Cyclocel
D. Phosphon-D

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the commercial application that can increase the shelf life of vegetables and flowers. This indicates that we are looking for a method or substance that can delay the aging process of these plants.

2. **Identifying Key Concepts**: The key concept here is "shelf life" which refers to the duration that vegetables and flowers remain fresh and usable. The aging process in plants is known as "senescence."

3. **Role of Phytohormones**: Phytohormones are natural substances produced by plants that regulate growth and development. Among these, cytokinins are particularly important for delaying senescence.

4. **Cytokinins and Their Function**: Cytokinins are a type of phytohormone that promote cell division and delay the aging process in plants. They help in the mobilization of nutrients, which is crucial for maintaining the freshness of vegetables and flowers.

5. **Examples of Cytokinins**: Natural cytokinins include zeatin and kinetin. These hormones can be applied commercially to enhance the shelf life of vegetables and flowers by delaying their senescence.

6. **Conclusion**: Based on the understanding of the role of cytokinins in delaying senescence, we can conclude that the commercial application of cytokinins is the method that increases the shelf life of vegetables and flowers.

7. **Final Answer**: The correct answer is the application of cytokinins.

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