What is the pollen viability of the member of leguminoseae and rosaceae.

Answer

**Step-by-Step Solution:**

1. **Understanding Pollen Viability**: Pollen viability refers to the duration during which pollen grains remain viable and can successfully deliver male germ cells for fertilization.

2. **Factors Affecting Pollen Viability**: The viability of pollen can be influenced by various factors, including environmental conditions and the presence of protective compounds.

3. **Role of Sporopollenin**: Sporopollenin is a compound found in the outer layer of pollen grains that helps protect them, contributing to their longevity and viability.

4. **Pollen Viability in Leguminosae**: Members of the Leguminosae family (also known as Fabaceae) typically have a pollen viability that ranges from approximately six months to one year.

5. **Pollen Viability in Rosaceae**: Similarly, members of the Rosaceae family also exhibit a pollen viability of about six months to one year.

6. **Conclusion**: Therefore, both Leguminosae and Rosaceae families have a pollen viability of approximately six months to one year.

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