What is the Difference Between Quiescence and Dormancy?

Quiescence and dormancy are both states of inactivity in the seed germination process, but they have distinct differences:

• Quiescence is a resting stage where there is no activity in a non-dormant seed. It is caused by the absence of favorable conditions like light, temperature, and moisture. Under favorable conditions, the embryo resumes its growth. In quiescence, the cell division rate is suppressed.
• Dormancy is a state or phase where viable seeds are prevented from developing. It is an adaptive method that prevents seed growth during harsh conditions and is considered a survival mechanism. Dormancy requires a special event or "trigger" before the embryo can resume growth, such as fire, scarification, or cold treatment.

In summary, the main differences between quiescence and dormancy are:

1. Quiescence is a resting stage in normal or non-dormant seeds, while dormancy is an evolutionary adaptation that prevents seed germination under unsuitable conditions.
2. Quiescent seeds resume growth under favorable conditions, while dormant seeds require a specific trigger to break their dormancy.
3. Quiescence is generally a shorter phase than dormancy, lasting from a month to a year.

Comparative Table: Quiescence vs Dormancy

Quiescence and dormancy are both phases of seed inactivity, but they have distinct differences. Here is a table comparing the two:

Both quiescence and dormancy contribute to the delay in germination, which increases the survival rate of seeds.