Germination patterns of dimorphic achenes in Launaea nudicaulis (Asteraceae) growing in desert environments

Bhatt, Arvind and Perez Garcia, Felix (2018). Germination patterns of dimorphic achenes in Launaea nudicaulis (Asteraceae) growing in desert environments. "National Academy Science Letters-India", v. 41 (n. 3); pp. 177-180. ISSN 0250-541X. https://doi.org/10.1007/s40009-018-0640-3.

Description

Title: Germination patterns of dimorphic achenes in Launaea nudicaulis (Asteraceae) growing in desert environments
Author/s:
  • Bhatt, Arvind
  • Perez Garcia, Felix
Item Type: Article
Título de Revista/Publicación: National Academy Science Letters-India
Date: June 2018
ISSN: 0250-541X
Volume: 41
Subjects:
Freetext Keywords: Temperature; Heteromorphic; Seed germination; Desert; Achene color; Launaea nudicaulis
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

Launaea nudicaulis (Asteraceae) produces two morphologically distinct types of achenes (whitish brown and black) in a single capitulum. All L. nudicaulis achenes have a pappus and pappi were removed artificially in this study for experimental purposes. The germination of achenes of both colours, with and without pappi, under various temperature regimes and illumination conditions was tested. Different coloured achenes showed differences in their mass and germination behavior. Whitish brown achenes (with and without pappi) displayed greater germination than black ones. Whitish brown achenes without pappi generally displayed greater germination than achenes with pappi. Continuous darkness enhanced germination, regardless of the presence of pappi, indicating that L. nudicaulis seeds are negatively photoblastic.

More information

Item ID: 54516
DC Identifier: http://oa.upm.es/54516/
OAI Identifier: oai:oa.upm.es:54516
DOI: 10.1007/s40009-018-0640-3
Official URL: https://link.springer.com/article/10.1007%2Fs40009-018-0640-3
Deposited by: Memoria Investigacion
Deposited on: 17 Jul 2019 10:36
Last Modified: 17 Jul 2019 10:36
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