Seed germination characteristics of Phillyrea angustifolia L. and P. latifolia L. (Oleaceae), two Mediterranean shrub species having lignified endocarp

Mira Pérez, Sara and Veiga Barbosa, Luciana and Perez Garcia, Felix (2015). Seed germination characteristics of Phillyrea angustifolia L. and P. latifolia L. (Oleaceae), two Mediterranean shrub species having lignified endocarp. "Annals of Forest Research", v. 58 (n. 1); pp. 27-37. ISSN 1844-8135. https://doi.org/10.15287/afr.2015.304.

Description

Title: Seed germination characteristics of Phillyrea angustifolia L. and P. latifolia L. (Oleaceae), two Mediterranean shrub species having lignified endocarp
Author/s:
  • Mira Pérez, Sara
  • Veiga Barbosa, Luciana
  • Perez Garcia, Felix
Item Type: Article
Título de Revista/Publicación: Annals of Forest Research
Date: 2015
ISSN: 1844-8135
Volume: 58
Subjects:
Freetext Keywords: cold stratification; Phillyrea species; treatments before sowing; seed germination; seed scarification; lignified endocarp
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Biotecnología - Biología Vegetal
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The aim of this study was to determine the germination characteristics of Phillyrea angustifolia L. and P. latifolia L. seeds in order to develop an optimized propagation protocol for Phillyrea species. Seeds of P. angustifolia and P. latifolia were collected from wild plants growing in Cáceres province (CW Spain) and Andalucía (S Spain), respectively. Percentage of water uptake for P. latifolia seeds was calculated. Seeds with and without endocarp were germinated at different constant and alternating temperatures. Seeds without endocarp were soaked in distilled water or gibberellic acid, and then set to germinate. Seeds with endocarp of both species were stratified at 5 ºC for 30 or 90 days and then the endocarp was completely removed from the seeds before they were sowed. Chemical scarification with sulfuric acid and mechanical scarification were tested on P. angustifolia seeds with endocarp. Phillyrea endocarp was permeable to water, since Phillyrea seeds with endocarp imbibed water, but water uptake was faster when the endocarp was removed. Moreover, the encodarp could interfere mechanically in the emergence of the radicle, since seed germination of Phillyrea species was promoted by the complete removal of the lignified endocarp surrounding each seed. Optimal germination temperature for both species was 15 ºC, and lower temperatures produced secondary dormancy. Soaking in distilled water or gibberellic acid did not significantly enhance seed germination. Cold stratification and chemical scarification treatments were detrimental for seed germination. Keywords cold stratification, Phillyrea species, treatments before sowing, seed germination, seed scarification, lignified endocarp.

More information

Item ID: 40120
DC Identifier: http://oa.upm.es/40120/
OAI Identifier: oai:oa.upm.es:40120
DOI: 10.15287/afr.2015.304
Official URL: http://afrjournal.org/index.php/afr/article/view/304
Deposited by: Memoria Investigacion
Deposited on: 05 May 2016 15:22
Last Modified: 04 Jun 2019 14:59
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