Assessment of two seed technologies for the direct seeding of Festuca pallescens, a key species for grassland restoration in Patagonia
Direct seeding of native species is a practice with high potential for the restoration of degraded areas. Since the availability of seeds of native species is often limited, it is necessary to make the most of this resource. In this work, we tested two different technologies for the direct seeding o...
| Main Authors: | , , , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
Wiley
2025
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/21872 https://onlinelibrary.wiley.com/doi/10.1111/rec.70034 https://doi.org/10.1111/rec.70034 |
| _version_ | 1855486833669963776 |
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| author | Martin Albarracin, Valeria Leticia Easdale, Marcos Horacio Angeli, Juan Pablo Hurtado, Santiago Ignacio Ignazi, Griselda Lopez, Aldana Soledad Guidalevich, Verónica Marchelli, Paula |
| author_browse | Angeli, Juan Pablo Easdale, Marcos Horacio Guidalevich, Verónica Hurtado, Santiago Ignacio Ignazi, Griselda Lopez, Aldana Soledad Marchelli, Paula Martin Albarracin, Valeria Leticia |
| author_facet | Martin Albarracin, Valeria Leticia Easdale, Marcos Horacio Angeli, Juan Pablo Hurtado, Santiago Ignacio Ignazi, Griselda Lopez, Aldana Soledad Guidalevich, Verónica Marchelli, Paula |
| author_sort | Martin Albarracin, Valeria Leticia |
| collection | INTA Digital |
| description | Direct seeding of native species is a practice with high potential for the restoration of degraded areas. Since the availability of seeds of native species is often limited, it is necessary to make the most of this resource. In this work, we tested two different technologies for the direct seeding of Festuca pallescens: seed coating and hydrogel soil amendment. For this, we conducted two greenhouse trials under controlled conditions and five field sowing trials in two different environments that differ in mean annual precipitation and in different seasons (autumn and spring). The greenhouse trials consisted of (1) seeding natural seeds in two substrates (soil with vs. without hydrogel) and under two irrigation regimes (regular irrigation vs. water restriction regime); (2) seeding differently treated seeds (natural vs. coated) under water restriction regime in two substrates (soil with vs. without hydrogel). Field trials consisted of seeding differently treated seeds (natural vs. coated) under natural rainfall conditions in two substrates (soil with vs. without hydrogel). Greenhouse trials showed that hydrogel soil amendment increased soil relative humidity and promoted growth under a water restriction regime. Field trials showed mixed results: hydrogel often reduced seedling emergence, while seed coating enhanced emergence when seeding immediately after coating treatment but not thereafter. Autumn planting emerged as the optimal season for F. pallescens, correlating with higher emergence and improved survival 1 year post-planting. Site-specific differences were also observed, highlighting habitat suitability variability. Overall, these technologies exhibited context-dependent effects, suggesting nuanced recommendations for their application in ecological restoration efforts. |
| format | Artículo |
| id | INTA21872 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA218722025-04-03T11:22:50Z Assessment of two seed technologies for the direct seeding of Festuca pallescens, a key species for grassland restoration in Patagonia Martin Albarracin, Valeria Leticia Easdale, Marcos Horacio Angeli, Juan Pablo Hurtado, Santiago Ignacio Ignazi, Griselda Lopez, Aldana Soledad Guidalevich, Verónica Marchelli, Paula Festuca Praderas Agua Restauración Medioambiental Tecnología de las Semillas Grasslands Water Environmental Restoration Seed Technology Festuca pallescens Región Patagónica Direct seeding of native species is a practice with high potential for the restoration of degraded areas. Since the availability of seeds of native species is often limited, it is necessary to make the most of this resource. In this work, we tested two different technologies for the direct seeding of Festuca pallescens: seed coating and hydrogel soil amendment. For this, we conducted two greenhouse trials under controlled conditions and five field sowing trials in two different environments that differ in mean annual precipitation and in different seasons (autumn and spring). The greenhouse trials consisted of (1) seeding natural seeds in two substrates (soil with vs. without hydrogel) and under two irrigation regimes (regular irrigation vs. water restriction regime); (2) seeding differently treated seeds (natural vs. coated) under water restriction regime in two substrates (soil with vs. without hydrogel). Field trials consisted of seeding differently treated seeds (natural vs. coated) under natural rainfall conditions in two substrates (soil with vs. without hydrogel). Greenhouse trials showed that hydrogel soil amendment increased soil relative humidity and promoted growth under a water restriction regime. Field trials showed mixed results: hydrogel often reduced seedling emergence, while seed coating enhanced emergence when seeding immediately after coating treatment but not thereafter. Autumn planting emerged as the optimal season for F. pallescens, correlating with higher emergence and improved survival 1 year post-planting. Site-specific differences were also observed, highlighting habitat suitability variability. Overall, these technologies exhibited context-dependent effects, suggesting nuanced recommendations for their application in ecological restoration efforts. EEA Bariloche Fil: Martin Albarracin, Valeria Leticia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Martin Albarracin, Valeria Leticia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Easdale, Marcos Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Easdale, Marcos Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Angeli, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel; Argentina Fil: Hurtado, Santiago I. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Hurtado, Santiago I. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Ignazi, Griselda. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Ignazi, Griselda. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: López, Aldana Soledad. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ciencias Naturales y Ciencias de la Salud. Laboratorio de Bioprospección Aplicada en Plantas y Hongos (LaBIAPH); Argentina Fil: Guidalevich, Verónica. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB); Argentina Fil: Guidalevich, Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Marchelli, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB); Argentina Fil: Marchelli, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB); Argentina 2025-04-01T17:31:36Z 2025-04-01T17:31:36Z 2025-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/21872 https://onlinelibrary.wiley.com/doi/10.1111/rec.70034 1061-2971 (impreso) 1526-100X (online) https://doi.org/10.1111/rec.70034 eng info:eu-repograntAgreement/INTA/2019-PE-E6-I142-001, 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 http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Wiley Restoration Ecology : e70034. (First published: 18 March 2025) |
| spellingShingle | Festuca Praderas Agua Restauración Medioambiental Tecnología de las Semillas Grasslands Water Environmental Restoration Seed Technology Festuca pallescens Región Patagónica Martin Albarracin, Valeria Leticia Easdale, Marcos Horacio Angeli, Juan Pablo Hurtado, Santiago Ignacio Ignazi, Griselda Lopez, Aldana Soledad Guidalevich, Verónica Marchelli, Paula Assessment of two seed technologies for the direct seeding of Festuca pallescens, a key species for grassland restoration in Patagonia |
| title | Assessment of two seed technologies for the direct seeding of Festuca pallescens, a key species for grassland restoration in Patagonia |
| title_full | Assessment of two seed technologies for the direct seeding of Festuca pallescens, a key species for grassland restoration in Patagonia |
| title_fullStr | Assessment of two seed technologies for the direct seeding of Festuca pallescens, a key species for grassland restoration in Patagonia |
| title_full_unstemmed | Assessment of two seed technologies for the direct seeding of Festuca pallescens, a key species for grassland restoration in Patagonia |
| title_short | Assessment of two seed technologies for the direct seeding of Festuca pallescens, a key species for grassland restoration in Patagonia |
| title_sort | assessment of two seed technologies for the direct seeding of festuca pallescens a key species for grassland restoration in patagonia |
| topic | Festuca Praderas Agua Restauración Medioambiental Tecnología de las Semillas Grasslands Water Environmental Restoration Seed Technology Festuca pallescens Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/21872 https://onlinelibrary.wiley.com/doi/10.1111/rec.70034 https://doi.org/10.1111/rec.70034 |
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