Question

List four characteristics of plant hormones. Name any

two plant hormones.​

Answer 1

Answer:

1. elongation of stem
2. ripening of fruits
3. seed germination.
4. falling of leaves.

1. auxin
2. cytokinin

Answer 2

Answer:

There are 5 types of plant hormones (phytohormones) :

a) Auxins

•they help in the growth of the stem.

•they inhibit the growth of lateral buds.

b) Gibberellin

•it promotes seed germination.

•it stimulates flowering in long-day plants.

c) Cytokinin

•it promotes cell division.

•it promotes shoot formation in tissue culture.

d) Ethylene

•it promotes fruit ripening.

•it promotes abscission or shedding of leaves, flowers and fruits.

e) Abscisic acid

•it causes wilting of leaves.

•it prevents seed germination.