2.80 Geotropism

Notes


Geotropism = Growth response of plant due to gravity

Plant seed (conventional orientation)


Embryonic root will grow downwards - positive geotropism (towards gravity centre)
Embryonic shoot will grow upwards - negative geotropism


Plant seed (on it's side)


Root will still show negative geotropism (turn up)
Shoot will still show positive geotropism (turn down)