Question

State the main function of abscisic acid.

Answer 1

Abscisic acid:

1. Abscisic acid is a hormone that suppresses the growth of plants. It does so by counteracting the hormones that promote the growth of plants.
2. The other functions of this hormone are maintaining seed dormancy, causing wilting of leaves, etc.
3. During abiotic stress, the level of this hormone increases to several folds and signals the plant to suppress its growth.
4. It also closes the stomata to reduce transpiration in the plants.