Environmental drivers of seed persistence and seedling trait variation in two Neltuma species (Fabaceae)
The endemic tree Neltuma caldenia Burk. and the shrub Neltuma flexuosa var depressa F.A. Roig (Fabaceae; subfam: Mimosoideae) are two promising species from the central region of Argentina, with high potential for use in the restoration of disturbed environments, for extensive livestock grazing and...
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| Format: | Artículo |
| Language: | Inglés |
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Cambridge University Press
2025
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| Online Access: | http://hdl.handle.net/20.500.12123/22632 https://www.cambridge.org/core/journals/seed-science-research/article/environmental-drivers-of-seed-persistence-and-seedling-trait-variation-in-two-neltuma-species-fabaceae/7F264103D7CB42B6A9582005994895F2 https://doi.org/10.1017/S0960258524000205 |
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| author | Renzi Pugni, Juan Pablo Quintana, Matias Bruna, Matias Nicolas Reinoso, Omar Juan |
| author_browse | Bruna, Matias Nicolas Quintana, Matias Reinoso, Omar Juan Renzi Pugni, Juan Pablo |
| author_facet | Renzi Pugni, Juan Pablo Quintana, Matias Bruna, Matias Nicolas Reinoso, Omar Juan |
| author_sort | Renzi Pugni, Juan Pablo |
| collection | INTA Digital |
| description | The endemic tree Neltuma caldenia Burk. and the shrub Neltuma flexuosa var depressa F.A. Roig (Fabaceae; subfam: Mimosoideae) are two promising species from the central region of Argentina, with high potential for use in the restoration of disturbed environments, for extensive livestock grazing and apiculture. Both species have seeds with physical dormancy. Ecological study of native species is important from the point of view of rehabilitation of degraded areas by natural regeneration or via seed-based programmes. The objective of this study was to evaluate soil seed bank persistence and seedling traits to understand variation among different populations of each of the study species growing along an ecological gradient and to identify potential components driving this variation. Home environments influenced seed bank persistence, which was higher in populations originating from more arid and unpredictable environments where it could act as a bet-hedging strategy between years and seasons. We also observed differences associated with seedling growth traits between the species and populations. Populations with higher seed persistence were associated with greater seedling growth in N. caldenia. The rapid elongation rate of N. caldenia seedlings growing in large populations and unstable environments could help their ability to escape drought by accessing deeper soil moisture and would confer a high relative competitive ability. In contrast, N. f. var depressa displayed higher seed persistence, which was associated with more arid and unstable conditions and correlated with lower seedling growth, possibly due to an inbreeding depression effect, resulting from the presence of mother plants in low-densities or being isolated from other individuals. There was no effect of population size on seed persistence. To better understand seed persistence and associated seedling trait variation, future studies need to consider the genotype, environment and landscape conditions. |
| format | Artículo |
| id | INTA22632 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | INTA226322025-06-11T13:41:30Z Environmental drivers of seed persistence and seedling trait variation in two Neltuma species (Fabaceae) Renzi Pugni, Juan Pablo Quintana, Matias Bruna, Matias Nicolas Reinoso, Omar Juan Fabaceae Environment Seed Dormancy Genetic Variation Medio Ambiente Dormancia de Semillas Variación Genética Neltuma Neltuma caldenia Neltuma flexuosa var depressa The endemic tree Neltuma caldenia Burk. and the shrub Neltuma flexuosa var depressa F.A. Roig (Fabaceae; subfam: Mimosoideae) are two promising species from the central region of Argentina, with high potential for use in the restoration of disturbed environments, for extensive livestock grazing and apiculture. Both species have seeds with physical dormancy. Ecological study of native species is important from the point of view of rehabilitation of degraded areas by natural regeneration or via seed-based programmes. The objective of this study was to evaluate soil seed bank persistence and seedling traits to understand variation among different populations of each of the study species growing along an ecological gradient and to identify potential components driving this variation. Home environments influenced seed bank persistence, which was higher in populations originating from more arid and unpredictable environments where it could act as a bet-hedging strategy between years and seasons. We also observed differences associated with seedling growth traits between the species and populations. Populations with higher seed persistence were associated with greater seedling growth in N. caldenia. The rapid elongation rate of N. caldenia seedlings growing in large populations and unstable environments could help their ability to escape drought by accessing deeper soil moisture and would confer a high relative competitive ability. In contrast, N. f. var depressa displayed higher seed persistence, which was associated with more arid and unstable conditions and correlated with lower seedling growth, possibly due to an inbreeding depression effect, resulting from the presence of mother plants in low-densities or being isolated from other individuals. There was no effect of population size on seed persistence. To better understand seed persistence and associated seedling trait variation, future studies need to consider the genotype, environment and landscape conditions. 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: Quintana, Matias. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Bruna, Matias Nicolas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Reinoso, Omar Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina 2025-06-11T13:30:26Z 2025-06-11T13:30:26Z 2024-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/22632 https://www.cambridge.org/core/journals/seed-science-research/article/environmental-drivers-of-seed-persistence-and-seedling-trait-variation-in-two-neltuma-species-fabaceae/7F264103D7CB42B6A9582005994895F2 0960-2585 1475-2735 https://doi.org/10.1017/S0960258524000205 eng info:eu-repograntAgreement/INTA/2023-PD-L01-I100, Genética en forrajeras para ambientes y mercados desafiantes info:eu-repograntAgreement/INTA/2023-PD-L01-I098, Producción ecoeficiente de forraje en pasturas y pastizales 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 Cambridge University Press Seed Science Research 34 (4) : 186-193. (December 2024) |
| spellingShingle | Fabaceae Environment Seed Dormancy Genetic Variation Medio Ambiente Dormancia de Semillas Variación Genética Neltuma Neltuma caldenia Neltuma flexuosa var depressa Renzi Pugni, Juan Pablo Quintana, Matias Bruna, Matias Nicolas Reinoso, Omar Juan Environmental drivers of seed persistence and seedling trait variation in two Neltuma species (Fabaceae) |
| title | Environmental drivers of seed persistence and seedling trait variation in two Neltuma species (Fabaceae) |
| title_full | Environmental drivers of seed persistence and seedling trait variation in two Neltuma species (Fabaceae) |
| title_fullStr | Environmental drivers of seed persistence and seedling trait variation in two Neltuma species (Fabaceae) |
| title_full_unstemmed | Environmental drivers of seed persistence and seedling trait variation in two Neltuma species (Fabaceae) |
| title_short | Environmental drivers of seed persistence and seedling trait variation in two Neltuma species (Fabaceae) |
| title_sort | environmental drivers of seed persistence and seedling trait variation in two neltuma species fabaceae |
| topic | Fabaceae Environment Seed Dormancy Genetic Variation Medio Ambiente Dormancia de Semillas Variación Genética Neltuma Neltuma caldenia Neltuma flexuosa var depressa |
| url | http://hdl.handle.net/20.500.12123/22632 https://www.cambridge.org/core/journals/seed-science-research/article/environmental-drivers-of-seed-persistence-and-seedling-trait-variation-in-two-neltuma-species-fabaceae/7F264103D7CB42B6A9582005994895F2 https://doi.org/10.1017/S0960258524000205 |
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