Podcast
Questions and Answers
What percentage of germination was recorded for seeds stored at 4°C for 24 days?
What percentage of germination was recorded for seeds stored at 4°C for 24 days?
- 75%
- 29% (correct)
- 0%
- 50%
Which method can be used to enhance germination for slow germinating seeds?
Which method can be used to enhance germination for slow germinating seeds?
- Using a peat-based growing medium
- Soaking in a solution of nitrogen fertilizer
- Applying a heat treatment
- Soaking in water or a 0.2% solution of gibberellic acid (correct)
Which storage condition is optimal for preserving seed viability, as indicated in the information provided?
Which storage condition is optimal for preserving seed viability, as indicated in the information provided?
- In sunlight
- Room temperature
- Frozen at -18°C
- At 4°C (correct)
In the context of medicinal plants, what is crucial for determining the collection timing?
In the context of medicinal plants, what is crucial for determining the collection timing?
What factor is specifically mentioned as influencing germination in the provided information?
What factor is specifically mentioned as influencing germination in the provided information?
What is the effect of air-drying Colchicum autumnale seeds on their germination rate?
What is the effect of air-drying Colchicum autumnale seeds on their germination rate?
When is the best time to sow Colchicum autumnale seeds to ensure maximum germination?
When is the best time to sow Colchicum autumnale seeds to ensure maximum germination?
What is the maximum percentage of germination achievable in the first year when sowing fresh Colchicum autumnale seeds?
What is the maximum percentage of germination achievable in the first year when sowing fresh Colchicum autumnale seeds?
What is a potential delay in germination for Colchicum autumnale seeds if they are dried for too long?
What is a potential delay in germination for Colchicum autumnale seeds if they are dried for too long?
Which characteristic of Colchicum autumnale seeds significantly affects their germination?
Which characteristic of Colchicum autumnale seeds significantly affects their germination?
What is the recommended storage condition for seeds if they are not planted immediately?
What is the recommended storage condition for seeds if they are not planted immediately?
Which of the following seeds is known to lose its germination power rapidly if allowed to dry?
Which of the following seeds is known to lose its germination power rapidly if allowed to dry?
How does long-term storage affect seed germination rates?
How does long-term storage affect seed germination rates?
When should seeds be collected to optimize their germination potential?
When should seeds be collected to optimize their germination potential?
What is a common factor influencing the germination of seeds such as coca and nutmeg?
What is a common factor influencing the germination of seeds such as coca and nutmeg?
Flashcards are hidden until you start studying
Study Notes
Seed Storage and Germination
- Seeds stored at 4°C for 24 days showed varied germination rates: 29% and 0%.
- Slow-germinating seeds benefit from soaking in water or a 0.2% gibberellic acid solution for 48 hours prior to sowing.
- If seeds are not planted immediately, they should be kept in a cool, dry environment for preservation.
Seed Sensitivity to Storage Conditions
- Certain seeds, like cinnamon, coca, and nutmeg, quickly lose germination viability when dried or stored for brief periods.
- Long-term storage generally leads to a decreased germination percentage across all seeds.
Importance of Immediate Sowing
- For some seeds, immediate sowing is critical; for example, Colchicum autumnale seeds show reduced germination if air-dried for even a few days.
- Air-dried Colchicum autumnale seeds may germinate at only 5% after one year, with some seeds potentially taking up to five years to germinate.
- Sowing fresh seeds from dehisced capsules can yield a germination rate of 30% in the first year.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
