Topic 3 Propagation 5 (seeds)

Which of the following is NOT a factor to consider in seed germination?

• Seed viability

• Dormancy

• Provenance

• Photosynthesis

What does seed viability refer to?

• The color and texture of a seed

• The ability of a seed to germinate and grow into a healthy plant

• The size of the seed

• The weight of the seed

Which of the following factors influence seed viability?

• The seed's color and shape

• The seed's taste and smell

• The seed's age, genetics, storage conditions, and dormancy mechanisms

• The seed's price and availability

How does the viability of seeds change as they age?

• It remains constant regardless of age

• It increases as the seed gets older

• It tends to decrease

• It fluctuates unpredictably

Can all seeds remain viable for the same duration?

• Yes, all seeds have the same viability period

• No, different plant species have different longevity for their seeds

• Yes, but only if they are stored in a vacuum

• No, seeds cannot remain viable after they are harvested

Under appropriate storage conditions, how long can some seeds remain viable?

• Only a few days

• Up to one year

• Several years or even decades

• Indefinitely, without any time limit

What is seed dormancy?

• A permanent state where a seed cannot germinate under any conditions.

• A mechanism that allows seeds to germinate only in darkness.

• A mechanism that prevents a seed from germinating under unfavorable conditions, which is temporary and reversible.

• A process where seeds germinate immediately after being dispersed.

What is physical dormancy in seeds?

• When the seed coat is permeable to water and oxygen, allowing immediate germination.

• When the seed coat is impermeable to water or oxygen, often due to a waxy layer.

• When the seed is physically too large to germinate.

• When the seed requires light to break dormancy.

How can seed dormancy be broken?

• By keeping the seeds in a constant temperature and moisture level.

• By treating the seeds with specific treatments like scarification, stratification, or soaking in growth-promoting substances.

• By planting the seeds at great depths in the soil.

• By exposing the seeds to continuous light.

What does seed provenance refer to?

• The process of planting and growing seeds

• The origin and specific geographic location from which seeds are collected

• The method of harvesting seeds from plants

• The technique of genetically modifying seeds