DENDROLOGY

Detailed explanation-1: -The movement or the growth of a plant in relation to the stimulus of water is called hydrotropic movement and the equivalent response to the stimulus of water is called hydrotropism. In this type of movement, roots show positive hydrotropic response, as they move and grow towards the water.

Detailed explanation-2: -An example of positive hydrotropism is the growth of plant roots towards a higher humidity levels where the plant can sense this at the root cap and it will then send a signal to the elongating part of the root.

Detailed explanation-3: -Plant roots have positive hydrotropic response and modify their growth direction in search of water.