geotropism

Example:The emergence of the shoot from the radicle is an example of positive geotropism.

Definition:A response where a plant part grows in the direction of the gravitational pull, as observed in root growth.

Example:In contrast, the stem shows negative geotropism, growing upward as it reaches the light.

Definition:A response where a plant part grows away from the gravitational pull, as observed in stem growth.

Example:Gravitropism is the underlying mechanism for the geotropism of roots and shoots.

Definition:The specific type of geotropism, involving the bending or orienting of a plant organ in response to gravity.

Example:Phototropism drives the curvature of leaves and stems towards a light source, while geotropism influences the root growth.

Definition:Plant growth or movement in response to a light stimulus, which is different from response to gravity.