Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)

Autores
Quiroz, Facundo José; Edwards Molina, Juan Pablo; Dosio, Guillermo Aníbal Adrián
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Black stem (BS) of sunflower (Helianthus annuus L.) by Phoma macdonaldii has been reported in many production areas of the world associated to losses in grain yield. Their symptoms could be confounded with natural leaf senescence because they appear during the reproductive period. The objective of this work was to evaluate the effect of BS by P. macdonaldii on grain yield and the ecophysiological components determining it. Two field experiments were conducted under natural inoculation of P. macdonaldii. Two hybrids were protected or not with a combination of leaf fungicides. Severity of BS, leaf area, leaf senescence, intercepted PAR and dry matter were periodically measured. Nitrogen nutrition index was estimated at flowering. At physiological maturity, BS incidence, grain number and weight, and oil concentration were also measured. Presence of other diseases was low or null. Incidence of BS ranged from 2.9% to 49% within the protection treatments, hybrids and experiments. The protected treatment diminished BS in both hybrids and experiments in comparison with the unprotected one. Plants from protected treatment showed higher leaf area, leaf area duration, intercepted PAR, radiation use efficiency, dry matter and grain yield and their components, than those from unprotected treatment. Oil concentration was not affected by the disease. Differences in all studied variables were mainly supported for differences in mid and upper leaves. Black stem was related to premature leaf senescence and thus to reduction of intercepted radiation. An effect not only on the efficiency of radiation interception but also in the efficiency of the radiation conversion was observed.
Fil: Quiroz, Facundo José. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
Fil: Edwards Molina, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Dosio, Guillermo Aníbal Adrián. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
Materia
BLACK STEM BY PHOMA MACDONALDII
GRAIN YIELD
INTERCEPTED RADIATION
LEAF AREA
RADIATION USE EFFICIENCY
SUNFLOWER
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:11336/34617
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/34617
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)Quiroz, Facundo JoséEdwards Molina, Juan PabloDosio, Guillermo Aníbal AdriánBLACK STEM BY PHOMA MACDONALDIIGRAIN YIELDINTERCEPTED RADIATIONLEAF AREARADIATION USE EFFICIENCYSUNFLOWERhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Black stem (BS) of sunflower (Helianthus annuus L.) by Phoma macdonaldii has been reported in many production areas of the world associated to losses in grain yield. Their symptoms could be confounded with natural leaf senescence because they appear during the reproductive period. The objective of this work was to evaluate the effect of BS by P. macdonaldii on grain yield and the ecophysiological components determining it. Two field experiments were conducted under natural inoculation of P. macdonaldii. Two hybrids were protected or not with a combination of leaf fungicides. Severity of BS, leaf area, leaf senescence, intercepted PAR and dry matter were periodically measured. Nitrogen nutrition index was estimated at flowering. At physiological maturity, BS incidence, grain number and weight, and oil concentration were also measured. Presence of other diseases was low or null. Incidence of BS ranged from 2.9% to 49% within the protection treatments, hybrids and experiments. The protected treatment diminished BS in both hybrids and experiments in comparison with the unprotected one. Plants from protected treatment showed higher leaf area, leaf area duration, intercepted PAR, radiation use efficiency, dry matter and grain yield and their components, than those from unprotected treatment. Oil concentration was not affected by the disease. Differences in all studied variables were mainly supported for differences in mid and upper leaves. Black stem was related to premature leaf senescence and thus to reduction of intercepted radiation. An effect not only on the efficiency of radiation interception but also in the efficiency of the radiation conversion was observed.Fil: Quiroz, Facundo José. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: Edwards Molina, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Dosio, Guillermo Aníbal Adrián. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaElsevier Science2014-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/34617Quiroz, Facundo José; Edwards Molina, Juan Pablo; Dosio, Guillermo Aníbal Adrián; Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.); Elsevier Science; Field Crops Research; 160; 3-2014; 31-400378-4290CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.fcr.2014.02.011info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378429014000495info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:07:16Zoai:ri.conicet.gov.ar:11336/34617instacron: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:34982025-10-15 15:07:16.391CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)
title Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)
spellingShingle Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)
Quiroz, Facundo José
BLACK STEM BY PHOMA MACDONALDII
GRAIN YIELD
INTERCEPTED RADIATION
LEAF AREA
RADIATION USE EFFICIENCY
SUNFLOWER
title_short Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)
title_full Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)
title_fullStr Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)
title_full_unstemmed Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)
title_sort Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)
dc.creator.none.fl_str_mv Quiroz, Facundo José
Edwards Molina, Juan Pablo
Dosio, Guillermo Aníbal Adrián
author Quiroz, Facundo José
author_facet Quiroz, Facundo José
Edwards Molina, Juan Pablo
Dosio, Guillermo Aníbal Adrián
author_role author
author2 Edwards Molina, Juan Pablo
Dosio, Guillermo Aníbal Adrián
author2_role author
author
dc.subject.none.fl_str_mv BLACK STEM BY PHOMA MACDONALDII
GRAIN YIELD
INTERCEPTED RADIATION
LEAF AREA
RADIATION USE EFFICIENCY
SUNFLOWER
topic BLACK STEM BY PHOMA MACDONALDII
GRAIN YIELD
INTERCEPTED RADIATION
LEAF AREA
RADIATION USE EFFICIENCY
SUNFLOWER
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Black stem (BS) of sunflower (Helianthus annuus L.) by Phoma macdonaldii has been reported in many production areas of the world associated to losses in grain yield. Their symptoms could be confounded with natural leaf senescence because they appear during the reproductive period. The objective of this work was to evaluate the effect of BS by P. macdonaldii on grain yield and the ecophysiological components determining it. Two field experiments were conducted under natural inoculation of P. macdonaldii. Two hybrids were protected or not with a combination of leaf fungicides. Severity of BS, leaf area, leaf senescence, intercepted PAR and dry matter were periodically measured. Nitrogen nutrition index was estimated at flowering. At physiological maturity, BS incidence, grain number and weight, and oil concentration were also measured. Presence of other diseases was low or null. Incidence of BS ranged from 2.9% to 49% within the protection treatments, hybrids and experiments. The protected treatment diminished BS in both hybrids and experiments in comparison with the unprotected one. Plants from protected treatment showed higher leaf area, leaf area duration, intercepted PAR, radiation use efficiency, dry matter and grain yield and their components, than those from unprotected treatment. Oil concentration was not affected by the disease. Differences in all studied variables were mainly supported for differences in mid and upper leaves. Black stem was related to premature leaf senescence and thus to reduction of intercepted radiation. An effect not only on the efficiency of radiation interception but also in the efficiency of the radiation conversion was observed.
Fil: Quiroz, Facundo José. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
Fil: Edwards Molina, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Dosio, Guillermo Aníbal Adrián. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
description Black stem (BS) of sunflower (Helianthus annuus L.) by Phoma macdonaldii has been reported in many production areas of the world associated to losses in grain yield. Their symptoms could be confounded with natural leaf senescence because they appear during the reproductive period. The objective of this work was to evaluate the effect of BS by P. macdonaldii on grain yield and the ecophysiological components determining it. Two field experiments were conducted under natural inoculation of P. macdonaldii. Two hybrids were protected or not with a combination of leaf fungicides. Severity of BS, leaf area, leaf senescence, intercepted PAR and dry matter were periodically measured. Nitrogen nutrition index was estimated at flowering. At physiological maturity, BS incidence, grain number and weight, and oil concentration were also measured. Presence of other diseases was low or null. Incidence of BS ranged from 2.9% to 49% within the protection treatments, hybrids and experiments. The protected treatment diminished BS in both hybrids and experiments in comparison with the unprotected one. Plants from protected treatment showed higher leaf area, leaf area duration, intercepted PAR, radiation use efficiency, dry matter and grain yield and their components, than those from unprotected treatment. Oil concentration was not affected by the disease. Differences in all studied variables were mainly supported for differences in mid and upper leaves. Black stem was related to premature leaf senescence and thus to reduction of intercepted radiation. An effect not only on the efficiency of radiation interception but also in the efficiency of the radiation conversion was observed.
publishDate 2014
dc.date.none.fl_str_mv 2014-03
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/11336/34617
Quiroz, Facundo José; Edwards Molina, Juan Pablo; Dosio, Guillermo Aníbal Adrián; Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.); Elsevier Science; Field Crops Research; 160; 3-2014; 31-40
0378-4290
CONICET Digital
CONICET
url http://hdl.handle.net/11336/34617
identifier_str_mv Quiroz, Facundo José; Edwards Molina, Juan Pablo; Dosio, Guillermo Aníbal Adrián; Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.); Elsevier Science; Field Crops Research; 160; 3-2014; 31-40
0378-4290
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fcr.2014.02.011
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378429014000495
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
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 13.22299

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