Question

Seed dormancy during environmental stress is promoted by which plant growth regulator?

Answer 1

Plant growth regulators

Plant growth regulators are categorized under five groups which are gibberellin, auxin, ethylene, cytokinin, and abscisic acid.

Functions of abscisic acid:

1. Abscisic acid (ABA) is known to regulate the growth of plants, stress, and development response in plants.
2. It has an important role in stomatal closure, cuticular accumulation of wax, senescence of leaf, dormancy of buds, germination of seeds, inhibition of growth, and osmotic regulation.
3. Abscisic acid is known to control downstream responses to abiotic and biotic environmental stress through transcriptional and post-transcriptional methods.