20. Fill in the blanks:

a. Maximum growth is observed in ________ phase.

b. Apical dominance is due to ____________

c. ___________ hormone initiate rooting

d. Pigment involved in Photoperception in flowering plants is

Solution:

a. Exponential

b. Apical dominance is due to the presence of auxins

c. Auxins hormone initiates rooting.

d. Pigment involved in Photoperception in flowering plants is phytochrome.