Morfología y demografía de la germinación en lauráceas de Costa Rica
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| Nhiều tác giả: | , , |
|---|---|
| Định dạng: | artículo original |
| Trạng thái: | Versión publicada |
| Ngày xuất bản: | 1985 |
| Miêu tả: | The fruit of Licaria, Nectandra, Ocotea, Persea and Phoebe (Lauraceae) is an ovoidellipsoid berry and the ellipsoid seed has a papiraceous seed coat and a broad, straight embryo. The seedling is cryptocotylar and germination is hypogcus. The percentage of germination varies between 30-80%. The seedling develops 6 to 7 squamous protophylls before its produces eophylls in groups of 3,4 of 5; it has a well developed radical system lacking root hairs. Secondary growth takes place 40 to 45 days after germination. Seedling mortality in the field reaches almost 100% due to physical (dryness, excess of humidity) and biotic factors such as competition from weeds and fungi, and herbivory. |
| Quốc gia: | Portal de Revistas UCR |
| Tổ chức giáo dục: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Ngôn ngữ: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/24443 |
| Truy cập trực tuyến: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/24443 |