Variation in seed dormancy of Chaco seasonally dry forest species: Effects of seed traits and population environmental conditions
The persistence of subtropical seasonally dry forests urgently requires the implementation of ex situ conservation and restoration programs. We studied variation in seed traits and dormancy of six native species growing in seasonally dry Chaco forests of Argentina. We documented high intra- and inte...
| Autores principales: | , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2023
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/15331 https://www.mdpi.com/2223-7747/12/9/1790 https://doi.org/10.3390/plants12091790 |
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| author | Bertuzzi, Tania Lopez Spahr, Diego Gómez, Carlos Alberto Sühring, Silvia Susana Malagrina, Gisela Marina Baskin, Carol C. Galindez, Guadalupe |
| author_browse | Baskin, Carol C. Bertuzzi, Tania Galindez, Guadalupe Gómez, Carlos Alberto Lopez Spahr, Diego Malagrina, Gisela Marina Sühring, Silvia Susana |
| author_facet | Bertuzzi, Tania Lopez Spahr, Diego Gómez, Carlos Alberto Sühring, Silvia Susana Malagrina, Gisela Marina Baskin, Carol C. Galindez, Guadalupe |
| author_sort | Bertuzzi, Tania |
| collection | INTA Digital |
| description | The persistence of subtropical seasonally dry forests urgently requires the implementation of ex situ conservation and restoration programs. We studied variation in seed traits and dormancy of six native species growing in seasonally dry Chaco forests of Argentina. We documented high intra- and interspecific variability in seed traits and dormancy. Fresh seeds of Geoffroea decorticans and Parasenegalia visco (Fabaceae) were water-permeable and nondormant (ND), while those of Parkinsonia praecox and Vachellia aroma (Fabaceae) were water-impermeable and had physical dormancy (PY). Seeds of Schnopsis lorentzii (Anacardiaceae) and Sarcomphalus mistol (Rhamnaceae) were water-permeable and had physiological dormancy (PD). Mechanical and chemical scarification were the most effective methods to break PY, and dry storage for 3 months was effective in breaking
PD. Seeds of large-seeded species were ND or had PD, and those of small-seeded species had PY. Species inhabiting moist habitats had ND seeds, whereas those from seasonally dry habitats had seeds with PY or PD. These results suggest that seed traits and dormancy are species-specific and that intraspecific variation in seed traits is likely associated with high phenotypic plasticity of species in response to local environmental heterogeneity. These findings should be considered at the time of implementation of conservation techniques and for seed sourcing decisions for restoration. |
| format | Artículo |
| id | INTA15331 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INTA153312025-03-25T12:51:16Z Variation in seed dormancy of Chaco seasonally dry forest species: Effects of seed traits and population environmental conditions Bertuzzi, Tania Lopez Spahr, Diego Gómez, Carlos Alberto Sühring, Silvia Susana Malagrina, Gisela Marina Baskin, Carol C. Galindez, Guadalupe Anacardiaceae Fabaceae Rhamnaceae Arid Environments Interspecific Variability Intraspecific Variability Physical Dormancy Physiological Dormancy Seed Traits Water Gap Ambientes Aridos Variabilidad Interespecífica Variabilidad Intraespecífica Latencia Física Latencia Fisiológica Rasgos de la Semilla Brecha de Agua The persistence of subtropical seasonally dry forests urgently requires the implementation of ex situ conservation and restoration programs. We studied variation in seed traits and dormancy of six native species growing in seasonally dry Chaco forests of Argentina. We documented high intra- and interspecific variability in seed traits and dormancy. Fresh seeds of Geoffroea decorticans and Parasenegalia visco (Fabaceae) were water-permeable and nondormant (ND), while those of Parkinsonia praecox and Vachellia aroma (Fabaceae) were water-impermeable and had physical dormancy (PY). Seeds of Schnopsis lorentzii (Anacardiaceae) and Sarcomphalus mistol (Rhamnaceae) were water-permeable and had physiological dormancy (PD). Mechanical and chemical scarification were the most effective methods to break PY, and dry storage for 3 months was effective in breaking PD. Seeds of large-seeded species were ND or had PD, and those of small-seeded species had PY. Species inhabiting moist habitats had ND seeds, whereas those from seasonally dry habitats had seeds with PY or PD. These results suggest that seed traits and dormancy are species-specific and that intraspecific variation in seed traits is likely associated with high phenotypic plasticity of species in response to local environmental heterogeneity. These findings should be considered at the time of implementation of conservation techniques and for seed sourcing decisions for restoration. Fil: Bertucci, Tania. Universidad Nacional de Catamarca. Facultad de Ciencias Agrarias. Centro de Investigaciones y Transferencia de Catamarca; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: López-Spahr, Diego. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina Fil: Gomez, Carlos Alberto. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Concejo Nacional de Investigaciones Científicas y Técnicas. CCT Salta. Laboratorio de Microscopía Electrónica de Barrido; Argentina. Universidad Nacional de Salta. Laboratorio de Microscopía Electrónica de Barrido; Argentina Fil: Sühring, Silvia Susana. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina Fil: Malagrina, Gisela Marina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos. Banco Base de Germoplasma; Argentina Fil: Baskin, Carol C. University of Kentucky. Department of Biology and Department of Plant and Soil Sciences; Estados Unidos Fil: Galindez, Guadalupe. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Laboratorio de Investigaciones Botánicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 2023-09-27T13:04:37Z 2023-09-27T13:04:37Z 2023-04-27 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/15331 https://www.mdpi.com/2223-7747/12/9/1790 2223-7747 https://doi.org/10.3390/plants12091790 eng info:eu-repo/semantics/openAccess 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 MDPI Plants 12 (9) : 1790. (2023) |
| spellingShingle | Anacardiaceae Fabaceae Rhamnaceae Arid Environments Interspecific Variability Intraspecific Variability Physical Dormancy Physiological Dormancy Seed Traits Water Gap Ambientes Aridos Variabilidad Interespecífica Variabilidad Intraespecífica Latencia Física Latencia Fisiológica Rasgos de la Semilla Brecha de Agua Bertuzzi, Tania Lopez Spahr, Diego Gómez, Carlos Alberto Sühring, Silvia Susana Malagrina, Gisela Marina Baskin, Carol C. Galindez, Guadalupe Variation in seed dormancy of Chaco seasonally dry forest species: Effects of seed traits and population environmental conditions |
| title | Variation in seed dormancy of Chaco seasonally dry forest species: Effects of seed traits and population environmental conditions |
| title_full | Variation in seed dormancy of Chaco seasonally dry forest species: Effects of seed traits and population environmental conditions |
| title_fullStr | Variation in seed dormancy of Chaco seasonally dry forest species: Effects of seed traits and population environmental conditions |
| title_full_unstemmed | Variation in seed dormancy of Chaco seasonally dry forest species: Effects of seed traits and population environmental conditions |
| title_short | Variation in seed dormancy of Chaco seasonally dry forest species: Effects of seed traits and population environmental conditions |
| title_sort | variation in seed dormancy of chaco seasonally dry forest species effects of seed traits and population environmental conditions |
| topic | Anacardiaceae Fabaceae Rhamnaceae Arid Environments Interspecific Variability Intraspecific Variability Physical Dormancy Physiological Dormancy Seed Traits Water Gap Ambientes Aridos Variabilidad Interespecífica Variabilidad Intraespecífica Latencia Física Latencia Fisiológica Rasgos de la Semilla Brecha de Agua |
| url | http://hdl.handle.net/20.500.12123/15331 https://www.mdpi.com/2223-7747/12/9/1790 https://doi.org/10.3390/plants12091790 |
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