Cell elongation?

Auxin (Phototropism & Geotropism)

Gibberellins (Increases length of internodes)

Cell division?

Auxin (development of root & fruit)

Cytotoxin

Inhibits growth?

Auxin (in high concentration)

Abscisic acid

Promotes dormancy?

Abscisic acid

Break dormancy?

Gibberellins

Cytokinin

Ethene

Promotes abscission?

Abscisic acid

Ethene/Ethylene

Inhibits abscission?

Auxin

Promotes flowering?

Ethene

Promotes ripening of fruit?

Ethene

Promotes apical dominance?

Auxin

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