Prominent action of gibberellin is to
Increase the number of buds
Increase the size of leaves
Make dwarf plant tall
Making tall plants taller
Auxins in plants are synthesized at
Nodes
Petiole
Meristems
Internodes
The growing region of a root is :
Tip
Below the tip
In between nodes
Lower part of stem
Dicotyledonous weeds are destroyed by a chemical called:
IAA
2-4 dichlorophenoxy acetic acid
Abscisic acid
Naphthalene acetic acid
What happens if the terminal bud of a plant is removed?
Plant grows to normal height
Lateral branches grow
Plant increases in height
Roots do not develop
Cytokinins have special function of promoting:
The number of flowers
The amount of auxins
Cell division
Cell destruciton
Commercially produced Gibberellins are used for :
Fruit setting
Growing seedless fruits
Both a and b
ripening of fruits
Plants may be made to grow at a faster rate by applying a chemical called
Dichlorophenoxy acetic acid
Trichloropenoxy acetic acid
Gibberellic acid
Phosphon
Conversion of dwarf pea plant to taller pea plants is by the action of
ABA
Auxin
Gibberellins
All of the above
Indole Acetic Acid is
Gibberellin
Cytokinin
