How does the growth of a plant display positive and negative tropism?

Positive tropism means a plant is growing toward the stimulus, and negative tropism means a plant grows away from it.

Positive tropism means the plants moves into a positive direction and negative tropism means it moves toward a negative direction.

In positive tropism a plant increases in size, while in negative it decreases in size.

Negative tropism means a plant is growing toward the stimulus, and positive tropism means a plant grows away from it.

In positive tropism plants produce great amounts of fruit, while in negative they produce a great amount of seeds.