| 释义 |
hydrotropism Bot.|haɪˈdrɒtrəpɪz(ə)m|
[f. as hydrotropic a. + -ism.]
The property, exhibited by the growing parts (esp. the roots) of plants, of bending or turning under the influence of moisture. Cf. heliotropism.
1882F. Darwin in Nature 27 Apr. 600 Hydrotropism,—Roots have the power of bending towards a wet surface. 1897Willis Flower. Pl. I. 21 The root will be deflected toward the damp side, or..will exhibit positive hydrotropism. |