Germinative variability of seeds from different populations of four species of native grasses from Patagonia: a case study in northwestern Chubut.

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Germinative variability of seeds from different populations of four species of native grasses from Patagonia: a case study in northwestern Chubut. In this study, we analyzed the quality and germination behavior of seeds from different populations located on a west-east annual precipitation gradient...

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Autores principales: Nagahama, Nicolás, García Martínez, Guillermo C., Buduba, Carlos G., Opazo, Walter, Caruso, Cecilia A., Ciari, Georgina
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2016
Materias:
Bromus setifolius
Ecotipos
Festuca pallescens
Germinación
Hordeum comosum
Poa ligularis.
Ecotypes
Germination
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/14417
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
id I10-R10article-14417
record_format ojs
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-10
container_title_str Revistas de la UNC
language Español
format Artículo revista
topic Bromus setifolius
Ecotipos
Festuca pallescens
Germinación
Hordeum comosum
Poa ligularis.
Bromus setifolius
Ecotypes
Festuca pallescens
Germination
Hordeum comosum
Poa ligularis.
spellingShingle Bromus setifolius
Ecotipos
Festuca pallescens
Germinación
Hordeum comosum
Poa ligularis.
Bromus setifolius
Ecotypes
Festuca pallescens
Germination
Hordeum comosum
Poa ligularis.
Nagahama, Nicolás
García Martínez, Guillermo C.
Buduba, Carlos G.
Opazo, Walter
Caruso, Cecilia A.
Ciari, Georgina
Germinative variability of seeds from different populations of four species of native grasses from Patagonia: a case study in northwestern Chubut.
topic_facet Bromus setifolius
Ecotipos
Festuca pallescens
Germinación
Hordeum comosum
Poa ligularis.
Bromus setifolius
Ecotypes
Festuca pallescens
Germination
Hordeum comosum
Poa ligularis.
author Nagahama, Nicolás
García Martínez, Guillermo C.
Buduba, Carlos G.
Opazo, Walter
Caruso, Cecilia A.
Ciari, Georgina
author_facet Nagahama, Nicolás
García Martínez, Guillermo C.
Buduba, Carlos G.
Opazo, Walter
Caruso, Cecilia A.
Ciari, Georgina
author_sort Nagahama, Nicolás
title Germinative variability of seeds from different populations of four species of native grasses from Patagonia: a case study in northwestern Chubut.
title_short Germinative variability of seeds from different populations of four species of native grasses from Patagonia: a case study in northwestern Chubut.
title_full Germinative variability of seeds from different populations of four species of native grasses from Patagonia: a case study in northwestern Chubut.
title_fullStr Germinative variability of seeds from different populations of four species of native grasses from Patagonia: a case study in northwestern Chubut.
title_full_unstemmed Germinative variability of seeds from different populations of four species of native grasses from Patagonia: a case study in northwestern Chubut.
title_sort germinative variability of seeds from different populations of four species of native grasses from patagonia: a case study in northwestern chubut.
description Germinative variability of seeds from different populations of four species of native grasses from Patagonia: a case study in northwestern Chubut. In this study, we analyzed the quality and germination behavior of seeds from different populations located on a west-east annual precipitation gradient (500 to 150 mm) in four species of native Patagonian forage grasses (Bromus setifolius, Festuca pallescens, Hordeum comosum and Poa ligularis), from NW Chubut. We observed differences in weight and percentage of filled seeds at inter- and intra-specific level. The seeds were sown in a common environment and the germination percentage and emergence speed were calculated for species and populations. We present data related to the germination of seeds (harvested in 2015) of these four species and we discuss primarily the results obtained from P. ligularis, the species that presented the highest inter-populational variability. In P. ligularis, a large percentage of seeds from the population of the driest site germinated/emerged in fewer days. This characteristic could be associated with these plants adapting physiologically to germinate, emerge and establish themselves quickly in response to the limited availability of water in this area. The genotypes of this particular population could be used for restoration programs in arid environments with annual rainfall less than 150 mm. Finally, due to the variability observed at least in P. ligularis, it is suggested for future breeding programs with these native species it would be necessary to analyze a greater number of populations to select potential seed banks.
publisher Sociedad Argentina de Botánica
publishDate 2016
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/14417
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