Alfalfa soil sickness and autotoxicity

Autores
Sampietro, Diego Alejandro; Sgariglia, Melina Araceli; Soberon, Jose Rodolfo
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Alfalfa is a perennial legume cultivated worldwide for animal feeding as hay and pasture. Low stand density and yield often occur in alfalfa re-establishment under monoculture leading to decline in forage yield. Literature indicates that this problem is due to "alfalfa soil sickness". Detrimental changes in soil physico-chemical properties, proliferation of soil-borne phytopathogenic fungi and inhibition of symbiotic alfalfa-microorganisms interactions are associated with the phenomenon. The intra-specific allelopathy (autotoxicity) is major component of alfalfa soil sickness. The impact of autotoxicity depends on soil characteristics, time interval between ploughing (killing) the old alfalfa stand and the sowing of new alfalfa, weather (primarily rainfall) and alfalfa cultivar. Many phenolic compounds have been identified as alfalfa autotoxins and can be released by plant leachate and/or residue decomposition. Autotoxins affect the seedling radicle length in seedlings more than germination or hypocotyl elongation. They reduce taproot growth and increase root branching, which adversely affect the crop performance. More studies are needed to elucidate the real ecophysiology of alfalfa autotoxins and the role of soil microorganisms in alfalfa soil sickness.
Fil: Sampietro, Diego Alejandro. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Fil: Sgariglia, Melina Araceli. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Estudios Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Fil: Soberon, Jose Rodolfo. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Estudios Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Materia
ALFALFA MONOCULTURE
AUTOTOXICITY
PHYTOPATHOGENIC FUNGI
RHYZOBIUM
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/87245
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Alfalfa soil sickness and autotoxicitySampietro, Diego AlejandroSgariglia, Melina AraceliSoberon, Jose RodolfoALFALFA MONOCULTUREAUTOTOXICITYPHYTOPATHOGENIC FUNGIRHYZOBIUMhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Alfalfa is a perennial legume cultivated worldwide for animal feeding as hay and pasture. Low stand density and yield often occur in alfalfa re-establishment under monoculture leading to decline in forage yield. Literature indicates that this problem is due to "alfalfa soil sickness". Detrimental changes in soil physico-chemical properties, proliferation of soil-borne phytopathogenic fungi and inhibition of symbiotic alfalfa-microorganisms interactions are associated with the phenomenon. The intra-specific allelopathy (autotoxicity) is major component of alfalfa soil sickness. The impact of autotoxicity depends on soil characteristics, time interval between ploughing (killing) the old alfalfa stand and the sowing of new alfalfa, weather (primarily rainfall) and alfalfa cultivar. Many phenolic compounds have been identified as alfalfa autotoxins and can be released by plant leachate and/or residue decomposition. Autotoxins affect the seedling radicle length in seedlings more than germination or hypocotyl elongation. They reduce taproot growth and increase root branching, which adversely affect the crop performance. More studies are needed to elucidate the real ecophysiology of alfalfa autotoxins and the role of soil microorganisms in alfalfa soil sickness.Fil: Sampietro, Diego Alejandro. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaFil: Sgariglia, Melina Araceli. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Estudios Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaFil: Soberon, Jose Rodolfo. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Estudios Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaAllelopathy Journal2006-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87245Sampietro, Diego Alejandro; Sgariglia, Melina Araceli; Soberon, Jose Rodolfo; Alfalfa soil sickness and autotoxicity; Allelopathy Journal; Allelopathy Journal; 18; 1; 6-2006; 81-920971-4693CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.allelopathyjournal.org/archives/?Year=2006&Vol=18&Issue=1&Month=7info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:04:26Zoai:ri.conicet.gov.ar:11336/87245instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:04:26.755CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Alfalfa soil sickness and autotoxicity
title Alfalfa soil sickness and autotoxicity
spellingShingle Alfalfa soil sickness and autotoxicity
Sampietro, Diego Alejandro
ALFALFA MONOCULTURE
AUTOTOXICITY
PHYTOPATHOGENIC FUNGI
RHYZOBIUM
title_short Alfalfa soil sickness and autotoxicity
title_full Alfalfa soil sickness and autotoxicity
title_fullStr Alfalfa soil sickness and autotoxicity
title_full_unstemmed Alfalfa soil sickness and autotoxicity
title_sort Alfalfa soil sickness and autotoxicity
dc.creator.none.fl_str_mv Sampietro, Diego Alejandro
Sgariglia, Melina Araceli
Soberon, Jose Rodolfo
author Sampietro, Diego Alejandro
author_facet Sampietro, Diego Alejandro
Sgariglia, Melina Araceli
Soberon, Jose Rodolfo
author_role author
author2 Sgariglia, Melina Araceli
Soberon, Jose Rodolfo
author2_role author
author
dc.subject.none.fl_str_mv ALFALFA MONOCULTURE
AUTOTOXICITY
PHYTOPATHOGENIC FUNGI
RHYZOBIUM
topic ALFALFA MONOCULTURE
AUTOTOXICITY
PHYTOPATHOGENIC FUNGI
RHYZOBIUM
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Alfalfa is a perennial legume cultivated worldwide for animal feeding as hay and pasture. Low stand density and yield often occur in alfalfa re-establishment under monoculture leading to decline in forage yield. Literature indicates that this problem is due to "alfalfa soil sickness". Detrimental changes in soil physico-chemical properties, proliferation of soil-borne phytopathogenic fungi and inhibition of symbiotic alfalfa-microorganisms interactions are associated with the phenomenon. The intra-specific allelopathy (autotoxicity) is major component of alfalfa soil sickness. The impact of autotoxicity depends on soil characteristics, time interval between ploughing (killing) the old alfalfa stand and the sowing of new alfalfa, weather (primarily rainfall) and alfalfa cultivar. Many phenolic compounds have been identified as alfalfa autotoxins and can be released by plant leachate and/or residue decomposition. Autotoxins affect the seedling radicle length in seedlings more than germination or hypocotyl elongation. They reduce taproot growth and increase root branching, which adversely affect the crop performance. More studies are needed to elucidate the real ecophysiology of alfalfa autotoxins and the role of soil microorganisms in alfalfa soil sickness.
Fil: Sampietro, Diego Alejandro. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Fil: Sgariglia, Melina Araceli. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Estudios Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Fil: Soberon, Jose Rodolfo. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Estudios Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
description Alfalfa is a perennial legume cultivated worldwide for animal feeding as hay and pasture. Low stand density and yield often occur in alfalfa re-establishment under monoculture leading to decline in forage yield. Literature indicates that this problem is due to "alfalfa soil sickness". Detrimental changes in soil physico-chemical properties, proliferation of soil-borne phytopathogenic fungi and inhibition of symbiotic alfalfa-microorganisms interactions are associated with the phenomenon. The intra-specific allelopathy (autotoxicity) is major component of alfalfa soil sickness. The impact of autotoxicity depends on soil characteristics, time interval between ploughing (killing) the old alfalfa stand and the sowing of new alfalfa, weather (primarily rainfall) and alfalfa cultivar. Many phenolic compounds have been identified as alfalfa autotoxins and can be released by plant leachate and/or residue decomposition. Autotoxins affect the seedling radicle length in seedlings more than germination or hypocotyl elongation. They reduce taproot growth and increase root branching, which adversely affect the crop performance. More studies are needed to elucidate the real ecophysiology of alfalfa autotoxins and the role of soil microorganisms in alfalfa soil sickness.
publishDate 2006
dc.date.none.fl_str_mv 2006-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/87245
Sampietro, Diego Alejandro; Sgariglia, Melina Araceli; Soberon, Jose Rodolfo; Alfalfa soil sickness and autotoxicity; Allelopathy Journal; Allelopathy Journal; 18; 1; 6-2006; 81-92
0971-4693
CONICET Digital
CONICET
url http://hdl.handle.net/11336/87245
identifier_str_mv Sampietro, Diego Alejandro; Sgariglia, Melina Araceli; Soberon, Jose Rodolfo; Alfalfa soil sickness and autotoxicity; Allelopathy Journal; Allelopathy Journal; 18; 1; 6-2006; 81-92
0971-4693
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.allelopathyjournal.org/archives/?Year=2006&Vol=18&Issue=1&Month=7
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Allelopathy Journal
publisher.none.fl_str_mv Allelopathy Journal
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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