Environmental factors affecting germination of Mimosa ephedroides (Fabaceae), an endemic shrub from Monte Desert, Argentina
Mimosa ephedroides is an endemic shrub from western Argentina. The knowledge of the germination response of this species to different environmental factors contribute to its efficient use in ecological restoration projects. This study aimed to examine aspects of seed quality, seed dormancy, and...
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| Language: | English |
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Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo
2021-07-01
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| Series: | Revista de la Facultad de Ciencias Agrarias |
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| Online Access: | https://revistas.uncu.edu.ar/ojs/index.php/RFCA/article/view/3297 |
| _version_ | 1797756007200325632 |
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| author | Sofia Leonor Dágata María Emilia Fernández Carlos Bernardo Passera |
| author_facet | Sofia Leonor Dágata María Emilia Fernández Carlos Bernardo Passera |
| author_sort | Sofia Leonor Dágata |
| collection | DOAJ |
| description |
Mimosa ephedroides is an endemic shrub from western Argentina. The knowledge of the germination response of this species to different environmental factors contribute to its efficient use in ecological restoration projects. This study aimed to examine aspects of seed quality, seed dormancy, and the effect of temperature, water and saline stress on the germination of this species. Also, the effect of seed storage time on the viability and the percentage of germinated seeds were evaluated. Experiments were carried out in controlled growth chambers. Germination percentage and mean germination time were calculated. It was found that this species has non-dormant seeds. Concerning abiotic factors, the optimum temperature for germination ranged from 20 to 30 ºC, it presented high germination percentages even at moderate and severe water stress (-1.12 MPa), and the germination percentages decreased with increasing salinity levels from 300 mM NaCl. In short periods (up to 36 months), seed storage at room temperature (18ºC) was adequate, not affecting the viability and the germination power of the seeds. These results constitute a contribution to the knowledge of the autecological aspects of this endemic species, support its incorporation for restoration projects, and aid to an efficient use of native seeds for direct seeding or seedling production.
Highlights
Mimosa ephedroides seeds are non- dormant, show high viability and rapid germination (>24 h).
This shrub is able to germinate in a wide range of temperatures and under moderate and severe water stress.
High salinity levels (<300 Mm NaCl) negatively affected seed germination.
Seed storage for short periods (<5 years) at room temperature (18ºC) did not affect seed viability and germination.
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| first_indexed | 2024-03-12T17:55:21Z |
| format | Article |
| id | doaj.art-4481e614168e47cdb3903ec574a71301 |
| institution | Directory Open Access Journal |
| issn | 0370-4661 1853-8665 |
| language | English |
| last_indexed | 2024-03-12T17:55:21Z |
| publishDate | 2021-07-01 |
| publisher | Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo |
| record_format | Article |
| series | Revista de la Facultad de Ciencias Agrarias |
| spelling | doaj.art-4481e614168e47cdb3903ec574a713012023-08-02T17:52:26ZengFacultad de Ciencias Agrarias. Universidad Nacional de CuyoRevista de la Facultad de Ciencias Agrarias0370-46611853-86652021-07-0153110.48162/rev.39.014Environmental factors affecting germination of Mimosa ephedroides (Fabaceae), an endemic shrub from Monte Desert, ArgentinaSofia Leonor Dágata0María Emilia Fernández1Carlos Bernardo Passera2Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Cátedra de Fisiología Vegetal. Almirante Brown 500 Chachas de Coria, Luján de Cuyo. M5528AHB. Mendoza.Becaria doctoral CONICET.CCT Mendoza-CONICET. Instituto Argentino de Investigaciones de las Zonas Áridas (IADIZA).Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Cátedra de Fisiología Vegetal. Almirante Brown 500 Chachas de Coria, Luján de Cuyo. M5528AHB. Mendoza. Mimosa ephedroides is an endemic shrub from western Argentina. The knowledge of the germination response of this species to different environmental factors contribute to its efficient use in ecological restoration projects. This study aimed to examine aspects of seed quality, seed dormancy, and the effect of temperature, water and saline stress on the germination of this species. Also, the effect of seed storage time on the viability and the percentage of germinated seeds were evaluated. Experiments were carried out in controlled growth chambers. Germination percentage and mean germination time were calculated. It was found that this species has non-dormant seeds. Concerning abiotic factors, the optimum temperature for germination ranged from 20 to 30 ºC, it presented high germination percentages even at moderate and severe water stress (-1.12 MPa), and the germination percentages decreased with increasing salinity levels from 300 mM NaCl. In short periods (up to 36 months), seed storage at room temperature (18ºC) was adequate, not affecting the viability and the germination power of the seeds. These results constitute a contribution to the knowledge of the autecological aspects of this endemic species, support its incorporation for restoration projects, and aid to an efficient use of native seeds for direct seeding or seedling production. Highlights Mimosa ephedroides seeds are non- dormant, show high viability and rapid germination (>24 h). This shrub is able to germinate in a wide range of temperatures and under moderate and severe water stress. High salinity levels (<300 Mm NaCl) negatively affected seed germination. Seed storage for short periods (<5 years) at room temperature (18ºC) did not affect seed viability and germination. https://revistas.uncu.edu.ar/ojs/index.php/RFCA/article/view/3297seed dormancyviabilitytemperaturewater stresssalinitystorage |
| spellingShingle | Sofia Leonor Dágata María Emilia Fernández Carlos Bernardo Passera Environmental factors affecting germination of Mimosa ephedroides (Fabaceae), an endemic shrub from Monte Desert, Argentina Revista de la Facultad de Ciencias Agrarias seed dormancy viability temperature water stress salinity storage |
| title | Environmental factors affecting germination of Mimosa ephedroides (Fabaceae), an endemic shrub from Monte Desert, Argentina |
| title_full | Environmental factors affecting germination of Mimosa ephedroides (Fabaceae), an endemic shrub from Monte Desert, Argentina |
| title_fullStr | Environmental factors affecting germination of Mimosa ephedroides (Fabaceae), an endemic shrub from Monte Desert, Argentina |
| title_full_unstemmed | Environmental factors affecting germination of Mimosa ephedroides (Fabaceae), an endemic shrub from Monte Desert, Argentina |
| title_short | Environmental factors affecting germination of Mimosa ephedroides (Fabaceae), an endemic shrub from Monte Desert, Argentina |
| title_sort | environmental factors affecting germination of mimosa ephedroides fabaceae an endemic shrub from monte desert argentina |
| topic | seed dormancy viability temperature water stress salinity storage |
| url | https://revistas.uncu.edu.ar/ojs/index.php/RFCA/article/view/3297 |
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