词汇 | germination |
释义 | germination noun[ U ] biology specializeduk /ˌdʒɜː.mɪˈneɪ.ʃən/ us /ˌdʒɝː.məˈneɪ.ʃən/ the process of a seed starting to grow, or the act of causing a seed to start growing: 发芽 Good soil moisture is required for seed germination.种子发芽需要土壤湿润度良好。 The cold and frost of winter weather helps to stimulate germination.冬季的寒冷和霜冻可刺激发芽。 See germinate When germination occurs, the covering should be removed at once. Germination is slow and can take a month in cold soil. The chemical kills weeds and prevents seed germination. Plant reproduction anther asexual reproduction asexuality asexually barrenness breeder chasmogamous endosperm germinate pistillate placentation pollinate pollination pollinator self-incompatible self-pollination sexlessly siltation sporangium stamen Examples of germinationgermination None of the seeds cached in this study survived to germination. Percentage values for germination and antioxidant activity were arcsinetransformed prior to analysis (untransformed data appear in all tables and figures). After stratification treatment(s), all seeds were transferred to incubators to test for germination under the conditions described above. Seeds were examined hourly for evidence of visible germination. Visible germination was defined as radicle protrusion of 1 mm or more. During the period between radicle emergence and hook formation, relations between cotyledon length and the time from visible germination were linear. The criterion for seed germination was visible radicle protrusion. However, they are not particularly apparent at 1 day of germination after priming and their role in the germination process per se is uncertain. Germination and seedling growth of selected dry tropical forest species. Factors limiting tropical rain forest regeneration in abandoned pasture: seed rain, seed germination, m icroclimate, and soil. Factors limiting tropical rain forest regeneration in abandoned pasture: seed rain, seed germination, microclimate, and soil. Perhaps an orderly sequence of metabolic events is necessary to 'set the stage' for germination. The cytokinin or ethylene requirements for overcoming thermoinhibition of lettuce germination can also be eliminated or diminished by removing or weakening the endosperm. Thus, in the absence of dormancy, delayed and slower rates of germination are evidence of reduced seed vigour and quality. It was a physical feature that delayed germination until the cell walls broke and permitted the influx of water necessary for germination. See all examples of germination These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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