| 释义 |
dormancy|ˈdɔːmənsɪ|
[f. next, or OF. dormance: see -ancy.]
Dormant condition (cf. next); spec. of seeds and plants (see quot. 1929).
1789N. Forster in Parr's Wks. (1828) VII. 464 The dormancy of any such prerogative. 1804Phil. Trans. XCV. 18 During this dormancy, the animal may be frozen, without the destruction of the muscular irritability. 1825Lytton Falkland 37 Her only escape from misery had been in the dormancy of feeling. 1845Florist's Jrnl. 158 The period of dormancy or rest should be brought on gradually. 1911Bot. Gaz. LII. 455 Fawcett obtained similar results with many kinds of weed seeds, the percentage of germination being increased, and the ‘period of dormancy’ shortened by freezing again and again. 1916Amer. Jrnl. Bot. III. 99 Dormancy in plants is common in three organs, seeds, spores, and buds. 1929Weaver & Clements Plant Ecology vi. 113 When a seed does not germinate immediately upon leaving the parent plant, it is said to be in a state of dormancy. Dormancy is not confined to seeds, however, but is also characteristic of many offshoots such as rhizomes, bulbs, tubers, etc. 1959New Scientist 3 Sept. 338/3 Gibberellic acid..can also break dormancy so that freshly lifted potatoes immediately sprout when dipped in this substance and dormant seeds germinate. 1971Nature New Biol. 16 June 195/1 Professor P. F. Wareing..reviewed the environmental and hormonal factors controlling seed dormancy. |