| 释义 |
hyponasty Bot.|ˈhɪpəʊ-, ˈhaɪpəʊnæstɪ|
[f. hypo- 2 + Gr. ναστ-ός pressed (f. νάσσειν to press) + -y. Cf. epinasty.
The current use of the terms hyponasty and epinasty originated with De Vries in Arbeiten des Bot. Inst. in Würzburg 1872 (Heft ii. p. 252).]
A tendency in plant-organs to grow more rapidly on the under or dorsal side than on the upper or ventral.
1875Bennett & Dyer Sachs' Bot. 768 The hyponasty of the axis often counterbalances the greater mass of the pendent parts. 1880C. & F. Darwin Movem. Pl. 6 Hypo⁓nasty..implies increased growth along the lower surface, causing the part to bend upwards. |