Give appropriate biological/technical terms for the following:
Pollen of the same flower fail to germinate on the stigma of the same flower.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a biological or technical term that describes the phenomenon where pollen from the same flower does not germinate on its own stigma.

2. **Identifying Key Concepts**: In plant reproduction, pollen grains must germinate on the stigma to form a pollen tube, which is essential for fertilization. If pollen from the same flower does not germinate on its stigma, it indicates a specific reproductive strategy.

3. **Defining the Term**: The condition where pollen from the same flower fails to germinate on its own stigma is known as "self-incompatibility." This term refers to a mechanism that prevents self-fertilization and promotes genetic diversity.

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