Germination Response of the Epiphytic Cactus Rhipsalis baccifera (J. S. Miller) Stearn to Different Light Conditions and Water Availability
In the forest canopy, seeds of epiphytic plants encounter heterogeneous environments created by a combination of factors such as solar radiation, humidity, and host characteristics. Germination requirements may explain the species distribution in the canopy; however, more knowledge is essential. Ger...
| Main Authors: | , |
|---|---|
| Format: | info:eu-repo/semantics/article |
| Udgivet: |
International Journal of Plant Sciences
2010
|
| Fag: | |
| Online adgang: | http://inecol.repositorioinstitucional.mx/jspui/handle/1005/249 |
| _version_ | 1799772163839885312 |
|---|---|
| author | Edilia De la Rosa Manzano Oscar Luis Briones Villarreal |
| author_facet | Edilia De la Rosa Manzano Oscar Luis Briones Villarreal |
| author_sort | Edilia De la Rosa Manzano |
| collection | REPO |
| description | In the forest canopy, seeds of epiphytic plants encounter heterogeneous environments created by a combination of factors such as solar radiation, humidity, and host characteristics. Germination requirements may explain the species distribution in the canopy; however, more knowledge is essential. Germination of Rhipsalis baccifera, a widespread tropical epiphytic cactus and representative of the humid montane forest in Mexico, was 80% or higher with far red, red, and white light and close to 0 in darkness. Germination was light saturated at very low photon flux density of only 13.5 mmol m 2 s 1. Germination decreased gradually at low water potentials and with increased storage time. After storage for 1 yr, no seeds germinated. Seeds have the ability to germinate in both the internal and external positions of the tree crowns. The germinative requirements of R. baccifera indicate that it could colonize a wide range of light conditions in the canopy; however, substrate humidity and seed age could limit germination. |
| format | info:eu-repo/semantics/article |
| id | repo-1005-249 |
| institution | Repositorio INECOL |
| publishDate | 2010 |
| publisher | International Journal of Plant Sciences |
| record_format | dspace |
| spelling | repo-1005-2492018-06-13T19:39:22Z Germination Response of the Epiphytic Cactus Rhipsalis baccifera (J. S. Miller) Stearn to Different Light Conditions and Water Availability Edilia De la Rosa Manzano Oscar Luis Briones Villarreal International Journal of Plant Sciences 2010 info:eu-repo/semantics/article In the forest canopy, seeds of epiphytic plants encounter heterogeneous environments created by a combination of factors such as solar radiation, humidity, and host characteristics. Germination requirements may explain the species distribution in the canopy; however, more knowledge is essential. Germination of Rhipsalis baccifera, a widespread tropical epiphytic cactus and representative of the humid montane forest in Mexico, was 80% or higher with far red, red, and white light and close to 0 in darkness. Germination was light saturated at very low photon flux density of only 13.5 mmol m 2 s 1. Germination decreased gradually at low water potentials and with increased storage time. After storage for 1 yr, no seeds germinated. Seeds have the ability to germinate in both the internal and external positions of the tree crowns. The germinative requirements of R. baccifera indicate that it could colonize a wide range of light conditions in the canopy; however, substrate humidity and seed age could limit germination. info:eu-repo/classification/cti/2 info:eu-repo/classification/cti/2 http://inecol.repositorioinstitucional.mx/jspui/handle/1005/249 info:eu-repo/semantics/openAccess citation:De la Rosa Manzano E., Briones Villarreal O.L. 2010. Germination Response of the Epiphytic Cactus Rhipsalis baccifera (J. S. Miller) Stearn to Different Light Conditions and Water Availability . International Journal of Plant Sciences. 171: 267-274 http://creativecommons.org/licenses/by-nc-nd/4.0 application/pdf |
| spellingShingle | info:eu-repo/classification/cti/2 info:eu-repo/classification/cti/2 Edilia De la Rosa Manzano Oscar Luis Briones Villarreal Germination Response of the Epiphytic Cactus Rhipsalis baccifera (J. S. Miller) Stearn to Different Light Conditions and Water Availability |
| title | Germination Response of the Epiphytic Cactus Rhipsalis baccifera (J. S. Miller) Stearn to Different Light Conditions and Water Availability |
| title_full | Germination Response of the Epiphytic Cactus Rhipsalis baccifera (J. S. Miller) Stearn to Different Light Conditions and Water Availability |
| title_fullStr | Germination Response of the Epiphytic Cactus Rhipsalis baccifera (J. S. Miller) Stearn to Different Light Conditions and Water Availability |
| title_full_unstemmed | Germination Response of the Epiphytic Cactus Rhipsalis baccifera (J. S. Miller) Stearn to Different Light Conditions and Water Availability |
| title_short | Germination Response of the Epiphytic Cactus Rhipsalis baccifera (J. S. Miller) Stearn to Different Light Conditions and Water Availability |
| title_sort | germination response of the epiphytic cactus rhipsalis baccifera j s miller stearn to different light conditions and water availability |
| topic | info:eu-repo/classification/cti/2 info:eu-repo/classification/cti/2 |
| url | http://inecol.repositorioinstitucional.mx/jspui/handle/1005/249 |
| work_keys_str_mv | AT ediliadelarosamanzano germinationresponseoftheepiphyticcactusrhipsalisbacciferajsmillerstearntodifferentlightconditionsandwateravailability AT oscarluisbrionesvillarreal germinationresponseoftheepiphyticcactusrhipsalisbacciferajsmillerstearntodifferentlightconditionsandwateravailability |
