What is the effect of ethylene on abscission?

Explanation

**Step-by-Step Solution:**

1. **Understanding Abscission**: Abscission is the process by which plants shed their leaves, flowers, or fruits. This is a natural part of a plant's life cycle and can be influenced by various hormones.

**Hint**: Remember that abscission is a natural process in plants, often related to their growth and survival.

2. **Role of Ethylene**: Ethylene is a plant hormone that plays a significant role in regulating various physiological processes, including abscission. It is known to stimulate the abscission of leaves, flowers, and fruits.

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