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dc.contributor.author
Gatti, M. L.  
dc.contributor.author
Cornaglia, P. S.  
dc.contributor.author
Re, Paula  
dc.date.available
2023-12-11T11:01:03Z  
dc.date.issued
2023-07  
dc.identifier.citation
Gatti, M. L.; Cornaglia, P. S.; Re, Paula; Responses of Trifolium repens L. root structure and function to shading and phosphorus shortage: limits to adaptative plasticity during establishment?; Springer; Agroforestry Systems; 7-2023; 1-12  
dc.identifier.issn
0167-4366  
dc.identifier.uri
http://hdl.handle.net/11336/219711  
dc.description.abstract
Shading and low soil phosphorus availability may limit root growth of forage species in humid-temperate silvopastoral systems. However, plants are able to cope with such constraints by modifying root structure to improve the establishment and survival. The aim of this work was to evaluate the plasticity of different types of roots of Trifolium repens L. and its functional impact in the first two years of the species. A pot trial designed in 3 randomized complete block was carried out in sub-subdivided plots: main plot was the shading treatment (4 levels: full sun = 0% and 30%, 60% and 90% of photosynthetically active radiation (PAR) reduction), sub-plots were 2 cultivars of large-leafed (cv. Junín and cv. El Lucero) and sub-sub-plots were 2 phosphorous conditions (without P− and with added P+). Whole plants were harvested and the root system was divided into seminal taproot and fibrous roots: coarse roots (1 to ≤ 2 mm of diameter) and fine roots (≤ 1 mm of diameter). Even under 60% of shading, both cultivars were able to maintain root soil penetration and water and nutrients acquisition, regardless of the level of P. These functions were associated with the length and taproot diameter, specific taproot length and fine root biomass during establishment. Instead 90% of shading was a clear limit to plasticity and survival of the plants during the second year. Under mean total daily PAR radiation > 15.3 mol m−2 day−1 and P shortage, it is expected that the enrichment with large-leafed cultivars could be successful in these systems.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Springer  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
COARSE AND FINE FIBROUS ROOTS  
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ROOT SPECIALIZATION  
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SHOOT TO ROOT RATIO  
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SPECIFIC TAPROOT LENGTH  
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TAPROOT BIOMASS  
dc.subject.classification
Otras Agricultura, Silvicultura y Pesca  
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Agricultura, Silvicultura y Pesca  
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CIENCIAS AGRÍCOLAS  
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Ganadería  
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Producción Animal y Lechería  
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CIENCIAS AGRÍCOLAS  
dc.title
Responses of Trifolium repens L. root structure and function to shading and phosphorus shortage: limits to adaptative plasticity during establishment?  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-12-07T14:09:55Z  
dc.journal.pagination
1-12  
dc.journal.pais
Alemania  
dc.description.fil
Fil: Gatti, M. L.. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; Argentina  
dc.description.fil
Fil: Cornaglia, P. S.. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; Argentina  
dc.description.fil
Fil: Re, Paula. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Delta del Paraná; Argentina  
dc.journal.title
Agroforestry Systems  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10457-023-00867-7