Question

What is the reason behind hydrotropism.

Answer 1

Hydrotropism is when the plant grows toward the site where it could find water in the soil.

Answer 2

Plant requires water for its growth .

That is why the plants need hydrotropism .

Hydrotropism is the movement of the plant parts towards water.

The water that the plant get is through the soil.

This serves as a medium for transportation of plant minerals and nutrients.

Thus water is essentially a requirement for plants.