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Article . 2014
License: CC BY NC SA
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Evaluación de tratamientos pregerminativos en seis especies nativas del ecotono Monte-Espinal del noreste de la Patagonia

Authors: Peter, Guadalupe; Leder, Cintia Vanesa; Calvo, Dianela Alejandra; Cruz, Anabella Marisel; Torres Robles, Silvia Susana;

Evaluación de tratamientos pregerminativos en seis especies nativas del ecotono Monte-Espinal del noreste de la Patagonia

Abstract

El cultivo de plantas nativas es una herramienta para promover la conservación de la biodiversidad y aumentar la valoración pública de los ecosistemas naturales. El objetivo del presente trabajo fue generar información sobre la obtención de individuos de especies nativas del Monte y Espinal del noreste de la Patagonia para contribuir con la formación de un Jardín Botánico. Se trabajó con Brachyclados megalanthus, Cyclolepis genistoides, Grindelia brachystephana, Lycium chilense, Melica bonariensis y Senecio subulatus. Se realizaron ensayos en estufa y en tierra en invernáculo, con la aplicación de los siguientes tratamientos: exposición al frío, imbibición en giberelina, escarificado mecánico y semillas sin tratar (control). Se evaluaron el porcentaje de germinación, el tiempo medio de germinación y la supervivencia de las plántulas. No se encontraron diferencias significativas entre tratamientos, por lo que se concluye que estas especies pueden ser producidas masivamente por semillas a bajo costo, con el fin de conservar ex situ la variabilidad genética nativa.

Native plant cultivation is a tool to promote biodiversity conservation and to enhance population awareness and interest in natural ecosystems. The objective of this study was to generate information on the obtaining of native species of Monte and Espinal ecoregions in northeast Patagonia to contribute with the creation of a botanical garden. We worked with Brachyclados megalanthus, Cyclolepis genistoides, Grindelia brachystephana, Lycium chilense, Melica bonariensis and Senecio subulatus. The applied treatments were cold shock, gibberellic acid imbibition, mechanical scarification and control (untreated). We performed two essays: one in germination stove and the second in soil in glasshouse conditions. We evaluated germination percentage, mean germination time and survival of seedlings. We did not observe statistically significant differences among treatments, so it is concluded that these species could be produced in masse from seeds at low cost, with the finality of ex situ conservation of native genetic variability.

Fil: Torres Robles, Silvia Susana. Universidad Nacional de Río Negro. Sede Atlántica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina

Fil: Calvo, Dianela Alejandra. Universidad Nacional de Río Negro. Sede Atlántica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina

Fil: Leder, Cintia Vanesa. Universidad Nacional de Río Negro. Sede Atlántica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina

Fil: Peter, Guadalupe. Universidad Nacional de Río Negro. Sede Atlántica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina

Fil: Cruz, Anabella Marisel. Universidad Nacional de Río Negro. Sede Atlántica; Argentina

Country
Argentina
Keywords

Espinal, https://purl.org/becyt/ford/1.6, Especies nativas, Monte, https://purl.org/becyt/ford/1, Tratamientos pregerminativos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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Italian National Biodiversity Future Center