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Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine).

Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine). The genus Conyza Less. includes ruderal species, which grow of ruderal habitat, roadsides and railways. They ha...

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Main Authors: Diez De Ulzurrun, Patricia, Acedo, María B., Garavano, María E., Gianelli, Valeria, Ispizúa, Verónica N.
Format: Online
Language: spa
Published: Sociedad Argentina de Botánica 2018
Online Access: https://revistas.unc.edu.ar/index.php/BSAB/article/view/21311
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spelling oai:ojs.pkp.sfu.ca:article-213112019-12-14T13:46:20Z Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine). Caracterización morfológica de Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis y Conyza lorentzii en el sudeste bonaerense (Argentina) Diez De Ulzurrun, Patricia Acedo, María B. Garavano, María E. Gianelli, Valeria Ispizúa, Verónica N. “Horseweed” intraspecific variability taxonomic identification multivariate analysis. “Rama negra” variabilidad intraespecífica identificación taxonómica análisis multivariado. Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine). The genus Conyza Less. includes ruderal species, which grow of ruderal habitat, roadsides and railways. They have also been cited as pasture weeds, annual and perennial crops under direct sowing (SD) systems, adapting to these slightly disturbed environments since they are sensitive to soil removal. The taxonomic identification of Conyza species linked to morphological characters is difficult in vegetative stages, since this genus has highly related and polymorphic species. With the objective of morphologically characterizing Conyza blakei, C. bonariensis var. bonariensis, C. lorentzii and C. sumatrensis var. sumatrensis were recorded 19 morphological characters (12 vegetative and 7 reproductive) qualitative and quantitative, in 35 plants of each species. These characters were analyzed by Multivariate Analysis (Analysis of Components and Main Coordinates). The morphological characterization made it possible to detect phenotypic differences between the Conyza species analyzed. The analysis of main coordinates allowed to differentiate the species both at a reproductive and vegetative level, while the analysis of main components only allowed to differentiate the species in reproductive stage. El género Conyza Less. incluye especies ruderales, que crecen en ambientes ruderales, bordes de carreteras y vías férreas. También han sido citadas como malezas en pasturas, cultivos anuales y perennes bajo sistemas de Siembra Directa (SD), adaptándose a estos ambientes poco disturbados ya que son sensibles a la remoción de suelo. La identificación taxonómica de las especies de Conyza ligada a caracteres morfológicos resulta dificultosa en estadios vegetativos, ya que dicho género presenta especies altamente relacionadas, y muy polimórficas. Con el objetivo de caracterizar morfológicamente a Conyza blakei, C. bonariensis var. bonariensis, C. lorentzii y C. sumatrensis var. sumatrensis se registraron 19 caracteres morfológicos (12 vegetativos y 7 reproductivos) cualitativos y cuantitativos, en 35 plantas de cada especie. Dichos caracteres fueron analizados mediante Análisis Multivariado (Análisis de Componentes y Coordenadas principales). La caracterización morfológica permitió detectar diferencias fenotípicas entre las especies de Conyza analizadas. El análisis de coordenadas principales permitió diferenciar a las especies tanto a nivel reproductivo como vegetativo, en tanto, el análisis de componentes principales solo permitió diferenciar a las especies en estadio reproductivo. Sociedad Argentina de Botánica 2018-09-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/21311 10.31055/1851.2372.v53.n3.21311 Boletín de la Sociedad Argentina de Botánica; Vol 53 No 3 (2018): September; 359-373 Boletín de la Sociedad Argentina de Botánica; Vol. 53 Núm. 3 (2018): Septiembre; 359-373 1851-2372 0373-580X 10.31055/1851.2372.v53.n3 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/21311/20824 Derechos de autor 2018 Boletín de la Sociedad Argentina de Botánica
institution Universidad Nacional de Córdoba
collection Portal de Revistas
language spa
format Online
author Diez De Ulzurrun, Patricia
Acedo, María B.
Garavano, María E.
Gianelli, Valeria
Ispizúa, Verónica N.
spellingShingle Diez De Ulzurrun, Patricia
Acedo, María B.
Garavano, María E.
Gianelli, Valeria
Ispizúa, Verónica N.
Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine).
author_sort Diez De Ulzurrun, Patricia
title Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine).
title_short Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine).
title_full Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine).
title_fullStr Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine).
title_full_unstemmed Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine).
title_sort morphological characterization of conyza blakei, conyza bonariensis var. bonariensis, conyza sumatrensis var. sumatrensis and conyza lorentzii in the southeast of buenos aires (argentine).
description Morphological characterization of Conyza blakei, Conyza bonariensis var. bonariensis, Conyza sumatrensis var. sumatrensis and Conyza lorentzii in the southeast of Buenos Aires (Argentine). The genus Conyza Less. includes ruderal species, which grow of ruderal habitat, roadsides and railways. They have also been cited as pasture weeds, annual and perennial crops under direct sowing (SD) systems, adapting to these slightly disturbed environments since they are sensitive to soil removal. The taxonomic identification of Conyza species linked to morphological characters is difficult in vegetative stages, since this genus has highly related and polymorphic species. With the objective of morphologically characterizing Conyza blakei, C. bonariensis var. bonariensis, C. lorentzii and C. sumatrensis var. sumatrensis were recorded 19 morphological characters (12 vegetative and 7 reproductive) qualitative and quantitative, in 35 plants of each species. These characters were analyzed by Multivariate Analysis (Analysis of Components and Main Coordinates). The morphological characterization made it possible to detect phenotypic differences between the Conyza species analyzed. The analysis of main coordinates allowed to differentiate the species both at a reproductive and vegetative level, while the analysis of main components only allowed to differentiate the species in reproductive stage.
publisher Sociedad Argentina de Botánica
publishDate 2018
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/21311
_version_ 1653117918319214592
score 13.593876

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