Dormancy breaking and germination of Adenocarpus desertorum, Astragalus gines-lopezii and Hippocrepis grosii (Fabaceae) seeds, three threatened endemic Spanish species

Schnadelbach, Alessandra Selbach and Veiga Barbosa, Luciana and Ruiz, Carlos and Pita Villamil, José Manuel and Perez Garcia, Felix (2016). Dormancy breaking and germination of Adenocarpus desertorum, Astragalus gines-lopezii and Hippocrepis grosii (Fabaceae) seeds, three threatened endemic Spanish species. "Seed Science And Technology", v. 44 ; pp. 1-14. ISSN 0251-0952. https://doi.org/10.15258/sst.2016.44.1.04.

Description

Title: Dormancy breaking and germination of Adenocarpus desertorum, Astragalus gines-lopezii and Hippocrepis grosii (Fabaceae) seeds, three threatened endemic Spanish species
Author/s:
  • Schnadelbach, Alessandra Selbach
  • Veiga Barbosa, Luciana
  • Ruiz, Carlos
  • Pita Villamil, José Manuel
  • Perez Garcia, Felix
Item Type: Article
Título de Revista/Publicación: Seed Science And Technology
Date: 2016
ISSN: 0251-0952
Volume: 44
Subjects:
Faculty: E.U.I.T. Agrícolas (UPM)
Department: Biotecnología - Biología Vegetal
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The effectiveness of different presowing treatments for removing hardseededness in Adenocarpus desertorum, Astragalus gines-lopezii and Hippocrepis grossi, three endemic and threatened perennial leguminous species of Spain, was evaluated. Untreated seeds of all three species were germinated over a range of constant (15, 20 and 25°C) and alternating temperatures (15/25 and 20/30°C) under a 16-hour light photoperiod. A considerable fraction of these seeds had physical dormancy caused by a water-impermeable seed coat. Germination was studied for seeds subjected to different presowing treatments: dry heat, hot water, ultra-low freezing, liquid nitrogen, freeze-thaw and mechanical scarification. The most effective method for promoting germination of Adenocarpus desertorum (two populations) and Astragalus gines-lopezii (two populations) was mechanical scarification with pliers. The highest germination percentages of H. grosii were reached by seeds mechanically scarified and also by seeds stored in an ultra-low freezer for 24 hours. Our data provided useful information in germination protocols for ex situ propagation of these three endemic and threatened species, being the first report on seed germination behaviour of Adenocarpus desertorum and Hippocrepis grosii.

More information

Item ID: 40433
DC Identifier: http://oa.upm.es/40433/
OAI Identifier: oai:oa.upm.es:40433
DOI: 10.15258/sst.2016.44.1.04
Official URL: https://doi.org/10.15258/sst.2016.44.1.04
Deposited by: Memoria Investigacion
Deposited on: 03 Jul 2017 11:42
Last Modified: 13 Mar 2019 18:31
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