Interpopulation germination response of Senecio coincyi (Asteraceae) cypselas to various nitrate (KNO3) concentrations

Schanadelbach, Alessandra and Veiga Barbosa, Luciana and Martinez Garcia, Felipe and Jiménez, Alejandro and Perez Garcia, Felix (2016). Interpopulation germination response of Senecio coincyi (Asteraceae) cypselas to various nitrate (KNO3) concentrations. "Seed Science And Technology", v. 44 (n. 3); pp. 624-630. ISSN 0251-0952. https://doi.org/10.15258/sst.2016.44.3.08.

Description

Title: Interpopulation germination response of Senecio coincyi (Asteraceae) cypselas to various nitrate (KNO3) concentrations
Author/s:
  • Schanadelbach, Alessandra
  • Veiga Barbosa, Luciana
  • Martinez Garcia, Felipe
  • Jiménez, Alejandro
  • Perez Garcia, Felix
Item Type: Article
Título de Revista/Publicación: Seed Science And Technology
Date: December 2016
ISSN: 0251-0952
Volume: 44
Subjects:
Faculty: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Department: Biotecnología - Biología Vegetal
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Senecio coincyi (Asteraceae) is a threatened endemic plant of central and north western Spain with a very narrow occurrence. In this study, germination tests under controlled conditions of light and temperature were carried out to evaluate interpopulation variation in the germination patterns of S. coincyi cypselas from 12 populations. The effects of nitrate (1, 5, 10, 25 and 50 mM KNO3) on percentage and rate of germination were also determined. Untreated cypselas of S. coincyi reached very high germination percentages (83-94%, depending on population), and there was no significant differences depending on population. In contrast, there were significant differences among populations in germination velocity, both for untreated and treated seeds. For all studied populations, KNO3 concentrations from 1 to 50 mM did not significantly affect germination percentage. Similarly, there was not a significant effect of KNO3 at concentrations in the range of 1 to 25 mM on germination speed. Only the highest KNO3 concentration (50 mM) significantly decreased the germination speed of the cypselas from most of the populations.

More information

Item ID: 45652
DC Identifier: http://oa.upm.es/45652/
OAI Identifier: oai:oa.upm.es:45652
DOI: 10.15258/sst.2016.44.3.08
Official URL: http://www.ingentaconnect.com/contentone/ista/sst/2016/00000044/00000003/art00014
Deposited by: Memoria Investigacion
Deposited on: 05 Jun 2017 14:47
Last Modified: 05 Jun 2017 14:47
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