Natural distribution and phenotypic traits of Neltuma flexuosa var. depressa, a candidate taxon for the rehabilitation in the central arid region of Argentina

Dryland rehabilitation in the central arid region of Argentina is urgently needed to reverse the current high levels of degradation. Neltuma flexuosa var. depressa, adapted to arid environments, gives it the potential to be used in rehabilitation, for extensive livestock grazing and apiculture. When...

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Autores principales: Renzi Pugni, Juan Pablo, Reinoso, Omar Juan, Quintana, Matias, Cantamutto, Miguel Angel
Formato: info:ar-repo/semantics/artículo
Lenguaje:Inglés
Publicado: Elsevier 2022
Materias:
Acceso en línea:http://hdl.handle.net/20.500.12123/13419
https://www.sciencedirect.com/science/article/abs/pii/S0140196322001847
https://doi.org/10.1016/j.jaridenv.2022.104889
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author Renzi Pugni, Juan Pablo
Reinoso, Omar Juan
Quintana, Matias
Cantamutto, Miguel Angel
author_browse Cantamutto, Miguel Angel
Quintana, Matias
Reinoso, Omar Juan
Renzi Pugni, Juan Pablo
author_facet Renzi Pugni, Juan Pablo
Reinoso, Omar Juan
Quintana, Matias
Cantamutto, Miguel Angel
author_sort Renzi Pugni, Juan Pablo
collection INTA Digital
description Dryland rehabilitation in the central arid region of Argentina is urgently needed to reverse the current high levels of degradation. Neltuma flexuosa var. depressa, adapted to arid environments, gives it the potential to be used in rehabilitation, for extensive livestock grazing and apiculture. When the soil seed bank is exhausted and natural regeneration is impossible, seed-based rehabilitation programmes constitute one of the more promising options. Thornless ecotype selection could improve pods utilization, so studies of the population distribution can be useful as a genetic resource for pre-breeding. Niche occupancy exhibits a large latitudinal extension (32–43°S), mainly in areas of salinity. All populations would have a transient soil seed bank, but seed dormancy release was lower in populations originating in more unpredictable environments, which distributes germination across years and acts as a bet-hedging strategy between seasons. We observed differences between the populations, with greater spinescence being associated with higher isothermality and lower annual precipitation (r > 80***) at the population's place of origin, showing local adaptation. We also found some thornless seedlings (1.67%) in a population with lower spinescence. However, the plastic response of thorns in seedlings, as well as later stages, should be evaluated in stressful environments.
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
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spelling INTA134192023-01-05T13:33:41Z Natural distribution and phenotypic traits of Neltuma flexuosa var. depressa, a candidate taxon for the rehabilitation in the central arid region of Argentina Renzi Pugni, Juan Pablo Reinoso, Omar Juan Quintana, Matias Cantamutto, Miguel Angel Prosopis Distribución Geográfica Fenotipos Arbustos Zona Arida Geographical Distribution Phenotypes Shrubs Land Rehabilitation Arid Zones Neltuma flexuosa var. depressa Dryland rehabilitation in the central arid region of Argentina is urgently needed to reverse the current high levels of degradation. Neltuma flexuosa var. depressa, adapted to arid environments, gives it the potential to be used in rehabilitation, for extensive livestock grazing and apiculture. When the soil seed bank is exhausted and natural regeneration is impossible, seed-based rehabilitation programmes constitute one of the more promising options. Thornless ecotype selection could improve pods utilization, so studies of the population distribution can be useful as a genetic resource for pre-breeding. Niche occupancy exhibits a large latitudinal extension (32–43°S), mainly in areas of salinity. All populations would have a transient soil seed bank, but seed dormancy release was lower in populations originating in more unpredictable environments, which distributes germination across years and acts as a bet-hedging strategy between seasons. We observed differences between the populations, with greater spinescence being associated with higher isothermality and lower annual precipitation (r > 80***) at the population's place of origin, showing local adaptation. We also found some thornless seedlings (1.67%) in a population with lower spinescence. However, the plastic response of thorns in seedlings, as well as later stages, should be evaluated in stressful environments. EEA Hilario Ascasubi Fil: Renzi Pugni, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Renzi Pugni, Juan Pablo. Universidad Nacional del Sur. Departamento de Agronomía; Argentina Fil: Reinoso, Omar Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Quintana, Matias. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Cantamutto, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Cantamutto, Miguel Angel. Universidad Nacional del Sur. Departamento de Agronomía; Argentina Fil: Cantamutto, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiarida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentina 2022-11-15T11:58:53Z 2022-11-15T11:58:53Z 2023-02 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/13419 https://www.sciencedirect.com/science/article/abs/pii/S0140196322001847 0140-1963 https://doi.org/10.1016/j.jaridenv.2022.104889 eng info:eu-repograntAgreement/INTA/2019-PE-E6-I142-001/2019-PE-E6-I142-001/AR./Mejoramiento genético de leguminosas y gramíneas forrajeras para incrementar la productividad y la sustentabilidad de los sistemas agropecuarios de la Argentina info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Journal of Arid Environments 209 : 104889 (February 2023)
spellingShingle Prosopis
Distribución Geográfica
Fenotipos
Arbustos
Zona Arida
Geographical Distribution
Phenotypes
Shrubs
Land Rehabilitation
Arid Zones
Neltuma flexuosa var. depressa
Renzi Pugni, Juan Pablo
Reinoso, Omar Juan
Quintana, Matias
Cantamutto, Miguel Angel
Natural distribution and phenotypic traits of Neltuma flexuosa var. depressa, a candidate taxon for the rehabilitation in the central arid region of Argentina
title Natural distribution and phenotypic traits of Neltuma flexuosa var. depressa, a candidate taxon for the rehabilitation in the central arid region of Argentina
title_full Natural distribution and phenotypic traits of Neltuma flexuosa var. depressa, a candidate taxon for the rehabilitation in the central arid region of Argentina
title_fullStr Natural distribution and phenotypic traits of Neltuma flexuosa var. depressa, a candidate taxon for the rehabilitation in the central arid region of Argentina
title_full_unstemmed Natural distribution and phenotypic traits of Neltuma flexuosa var. depressa, a candidate taxon for the rehabilitation in the central arid region of Argentina
title_short Natural distribution and phenotypic traits of Neltuma flexuosa var. depressa, a candidate taxon for the rehabilitation in the central arid region of Argentina
title_sort natural distribution and phenotypic traits of neltuma flexuosa var depressa a candidate taxon for the rehabilitation in the central arid region of argentina
topic Prosopis
Distribución Geográfica
Fenotipos
Arbustos
Zona Arida
Geographical Distribution
Phenotypes
Shrubs
Land Rehabilitation
Arid Zones
Neltuma flexuosa var. depressa
url http://hdl.handle.net/20.500.12123/13419
https://www.sciencedirect.com/science/article/abs/pii/S0140196322001847
https://doi.org/10.1016/j.jaridenv.2022.104889
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