Gibberellins are known to promote:

Kinetin, a modified form a adenine was discovered from

Which of the following plant hormones is primarily responsible for apical dominance?

Growth promoting hormone is

Fruit and leaf drop at early stages can be prevented by the application of

Among the following features of ethylene, how many are antagonistic to abscisic acid?

a) Horizontal growth of seedlings b)Promotes abscission of plant organs

c) Effective in fruit ripening d) Breaking seed and bud dormancy

e) Initiates germination in some seeds

Which of the following plant hormones is NOT involved in the elongation of internodes or petioles in plants?

The following statements are given about plant growth hormones:

I.Cytokinins suppress the synthesis of chlorophyll.

II.Auxins control apical dominance.

III.Gibberellins promote shoot elongation.

IV.Abscisic acid enabling seeds to withstand desiccation.

Which of the above statements are correct?

The hormone present in the liquid endosperm of coconut is

Which PGR was isolated from tips of coleoptiles of oat seeding by F.W. Went?

Which of the following movement in plants is not related to change in auxin level?