Definition of hydrotropism in English:

hydrotropism

Pronunciation /ˌhīdrəˈtrōpizəm/ /ˌhaɪdrəˈtroʊpɪzəm/

noun

Botany
  • The growth or turning of plant roots toward or away from moisture.

    ‘Such seedlings behaved identically to seedlings grown on uncovered filter paper and, hence, any possible effects of hydrotropism were eliminated.’
    • ‘Our experiment proved that hydrotropism really does exist, and watering the plants differently affects root growth.’
    • ‘These analyses indicate that the application of new genetic screens for dissecting complex signaling phenomena such as hydrotropism is promising.’
    • ‘Finally, decapitated roots don't seem to show hydrotropism, which hints at the root caps playing a major role in this phenomena.’
    • ‘Sensor cells for the presence of water are found in the root cap and studies indicated that calcium plays a role in the induction of root hydrotropism.’