Question

Name the plant harmones responsible for the following: (a) elongation of cell (b) growth of stem (c) promotion of cell (d) falling of senescent leaves.

Answer 1

a. cytokinins
b. increase in girth of stem - gibberlins
c. auxins most probably.
d. ABA

hope this helps. :)

Answer 2

Answer:

(a) elongation of cells

Ans. Auxin

(b) growth of stem

Ans. Giberellins

(c) promotion of cell division

Ans. Cytokinin

(d) falling of senescent leaves.

Ans. Abscisic acid