Mobilization of nutrients help cytokinin in delaying _____.

Explanation

**Step-by-Step Solution:**

1. **Understand Cytokinins**: Cytokinins are a group of plant hormones that play a crucial role in promoting cell division and growth in plants. They are involved in various processes including the growth of buds and the overall development of the plant.

2. **Identify the Role of Cytokinins**: One of the key functions of cytokinins is to delay senescence, which is the process of aging in plants. Senescence leads to the deterioration and death of plant cells.

3. **Link Nutrient Mobilization to Cytokinins**: The mobilization of nutrients is essential for cytokinins to function effectively. When nutrients are mobilized, they are made available for the growth processes that cytokinins promote.

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