DENDROLOGY

Detailed explanation-1: -Hydrotropism is the movement of plant parts in response to water. Thus, the stimulus for hydrotropism is “Water”.

Detailed explanation-2: -Background and Aims. Root hydrotropism is a response to water-potential gradients that makes roots bend towards areas of higher water potential. The gene MIZU-KUSSEI1 (MIZ1) that is essential for hydrotropism in Arabidopsis roots has previously been identified.

Detailed explanation-3: -Activity to demonstrate hydrotropism: Take a plant (pea seedling) in a nude jar filled with sand. Now place a porous pet filled with water in the wide jar. Roots of the plant will green towards water and bond towards the water source showing hydrotropism.