Question

Which of the following is/are causes of seed dormancy?

• A. Impermeable and hard seed coat
• B. Presence of chemical inhibitors like phenolic acid.
• C. Immature embryos
• D. All of the above

Answer 1

The correct option is D All of the above

Seed dormancy is defined as a condition in which seeds do not germinate even when the environmental conditions are favourable (i.e proper temperature, water, sunlight, air).
Seed dormancy may be caused because of the following reasons:
i) Impermeable and hard seed coat.
ii) Presence of chemical inhibitors like abscisic acid, phenolic acid, para-ascorbic acid.
iii) Immature embryos