Seed dormancy is due to the
Seed dormancy is due to the
- Ethylene
- Abscissic acid
- IAA
- Starch
The Correct Option is B
Solution and Explanation
The correct option is (B) : Abscissic acid
When seeds are in a state of dormancy, they cannot germinate even in environments that are typically favourable for germination. Abscisic acid (ABA), a sesquiterpene, controls a number of activities throughout the plant life cycle, including crucial seed formation events such the accumulation of store reserves, suppression of premature germination, development of desiccation resistance, and induction of primary dormancy.
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Concepts Used:
Seed
The matured and fertilized ovule, which comprises an active embryo reserve food and protective coating, is referred to as a seed. Seeds are ripened ovules that contain an embryonic plant with sufficient reserve food for embryo development. Ovules evolve into seeds after fertilization.
Types of Seed:
- Monocotyledonous seeds: Seeds having only one cotyledon, called monocotyledonous seeds.
- Dicotyledonous seeds: Seeds with two cotyledons, called dicotyledonous seeds.
- Albuminous seeds: Seeds having an endosperm. These seeds have thin membrane cotyledons and endosperm that hold on and feed the seedling during its early growth.
- Exalbuminous seeds: Food gathers in the endosperm tissue of exalbuminous seeds early in development, but it is utilized by the growing embryo and mature seeds without endosperm.