Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components

Autores
Haro, Ricardo J.; Baldessari, J.; Otegui, Maria Elena
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In Argentina, peanut (Arachis hypogaea L.) breeding has been based on seed yield per se plus defensive and seed quality traits. An important milestone was the shift from cultivars with erect growth habit (CEGH) to cultivars with procumbent (CPGH) growth habit that took place in the 1970s. However, there is no information on the genetic gain obtained for seed yield and related secondary traits (numerical and physiological determinants of seed yield), or on the effect of growth habit shift on these traits. Field experiments were performed to compute this gain and the relationships between traits in potential growing conditions. Eight cultivars released between 1948 and 2004 were evaluated. Introduction of the procumbent habit in 1975 produced a mean increase of 52% in seed yield, which was related to year of cultivar release (YOR) only for CPGH (mean genetic gain of 0.43% y−1). This trend was driven by seed weight, a trait that registered a mean genetic gain of 0.29% y−1 (P = 0.026) only among procumbent cultivars (56% increase with habit change between 1973 and 1975). No genetic gain was computed for seed numbers, and only a 10% difference was registered between growth habits (CPGH > CEGH). Seed number was related to crop growth rate between R3 and R6.5 (r2 = 0.55, P < 0.001). This rate was higher for CPGH than for CEGH. Breeding increased the number of flowers per plant (0.86% y−1), and the number of pods per plant and pod set (CPGH > CEGH). Breeding had a clear effect (P < 0.001) on the determinants of seed weight, and a genetic gain of 0.52% y−1 was estimated for pod growth rate. Introduction of CPGH enhanced pod growth duration (37% increase). No trade-off was detected between seed number and seed weight because there was no source limitation to seed filling. Therefore, peanut seed yield might be further increased by improving the determinants of seed numbers and seed weight simultaneously.
Fil: Haro, Ricardo J.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi; Argentina;
Fil: Baldessari, J.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi; Argentina;
Fil: Otegui, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina;
Materia
Peanut
Grain Yield
Genetic Gain
Yield Components
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:11336/999

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network_name_str CONICET Digital (CONICET)
spelling Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its componentsHaro, Ricardo J.Baldessari, J.Otegui, Maria ElenaPeanutGrain YieldGenetic GainYield Componentshttps://purl.org/becyt/ford/4https://purl.org/becyt/ford/4.1In Argentina, peanut (Arachis hypogaea L.) breeding has been based on seed yield per se plus defensive and seed quality traits. An important milestone was the shift from cultivars with erect growth habit (CEGH) to cultivars with procumbent (CPGH) growth habit that took place in the 1970s. However, there is no information on the genetic gain obtained for seed yield and related secondary traits (numerical and physiological determinants of seed yield), or on the effect of growth habit shift on these traits. Field experiments were performed to compute this gain and the relationships between traits in potential growing conditions. Eight cultivars released between 1948 and 2004 were evaluated. Introduction of the procumbent habit in 1975 produced a mean increase of 52% in seed yield, which was related to year of cultivar release (YOR) only for CPGH (mean genetic gain of 0.43% y−1). This trend was driven by seed weight, a trait that registered a mean genetic gain of 0.29% y−1 (P = 0.026) only among procumbent cultivars (56% increase with habit change between 1973 and 1975). No genetic gain was computed for seed numbers, and only a 10% difference was registered between growth habits (CPGH > CEGH). Seed number was related to crop growth rate between R3 and R6.5 (r2 = 0.55, P < 0.001). This rate was higher for CPGH than for CEGH. Breeding increased the number of flowers per plant (0.86% y−1), and the number of pods per plant and pod set (CPGH > CEGH). Breeding had a clear effect (P < 0.001) on the determinants of seed weight, and a genetic gain of 0.52% y−1 was estimated for pod growth rate. Introduction of CPGH enhanced pod growth duration (37% increase). No trade-off was detected between seed number and seed weight because there was no source limitation to seed filling. Therefore, peanut seed yield might be further increased by improving the determinants of seed numbers and seed weight simultaneously.Fil: Haro, Ricardo J.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi; Argentina;Fil: Baldessari, J.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi; Argentina;Fil: Otegui, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina;Elsevier Science Bv2013-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/999Haro, Ricardo J.; Baldessari, J.; Otegui, Maria Elena; Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components; Elsevier Science Bv; Field Crops Research; 149; 1; 6-2013; 76-830378-4290enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.fcr.2013.04.021info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:18:35Zoai:ri.conicet.gov.ar:11336/999instacron: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:34982025-09-29 10:18:35.227CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components
title Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components
spellingShingle Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components
Haro, Ricardo J.
Peanut
Grain Yield
Genetic Gain
Yield Components
title_short Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components
title_full Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components
title_fullStr Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components
title_full_unstemmed Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components
title_sort Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components
dc.creator.none.fl_str_mv Haro, Ricardo J.
Baldessari, J.
Otegui, Maria Elena
author Haro, Ricardo J.
author_facet Haro, Ricardo J.
Baldessari, J.
Otegui, Maria Elena
author_role author
author2 Baldessari, J.
Otegui, Maria Elena
author2_role author
author
dc.subject.none.fl_str_mv Peanut
Grain Yield
Genetic Gain
Yield Components
topic Peanut
Grain Yield
Genetic Gain
Yield Components
purl_subject.fl_str_mv https://purl.org/becyt/ford/4
https://purl.org/becyt/ford/4.1
dc.description.none.fl_txt_mv In Argentina, peanut (Arachis hypogaea L.) breeding has been based on seed yield per se plus defensive and seed quality traits. An important milestone was the shift from cultivars with erect growth habit (CEGH) to cultivars with procumbent (CPGH) growth habit that took place in the 1970s. However, there is no information on the genetic gain obtained for seed yield and related secondary traits (numerical and physiological determinants of seed yield), or on the effect of growth habit shift on these traits. Field experiments were performed to compute this gain and the relationships between traits in potential growing conditions. Eight cultivars released between 1948 and 2004 were evaluated. Introduction of the procumbent habit in 1975 produced a mean increase of 52% in seed yield, which was related to year of cultivar release (YOR) only for CPGH (mean genetic gain of 0.43% y−1). This trend was driven by seed weight, a trait that registered a mean genetic gain of 0.29% y−1 (P = 0.026) only among procumbent cultivars (56% increase with habit change between 1973 and 1975). No genetic gain was computed for seed numbers, and only a 10% difference was registered between growth habits (CPGH > CEGH). Seed number was related to crop growth rate between R3 and R6.5 (r2 = 0.55, P < 0.001). This rate was higher for CPGH than for CEGH. Breeding increased the number of flowers per plant (0.86% y−1), and the number of pods per plant and pod set (CPGH > CEGH). Breeding had a clear effect (P < 0.001) on the determinants of seed weight, and a genetic gain of 0.52% y−1 was estimated for pod growth rate. Introduction of CPGH enhanced pod growth duration (37% increase). No trade-off was detected between seed number and seed weight because there was no source limitation to seed filling. Therefore, peanut seed yield might be further increased by improving the determinants of seed numbers and seed weight simultaneously.
Fil: Haro, Ricardo J.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi; Argentina;
Fil: Baldessari, J.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi; Argentina;
Fil: Otegui, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina;
description In Argentina, peanut (Arachis hypogaea L.) breeding has been based on seed yield per se plus defensive and seed quality traits. An important milestone was the shift from cultivars with erect growth habit (CEGH) to cultivars with procumbent (CPGH) growth habit that took place in the 1970s. However, there is no information on the genetic gain obtained for seed yield and related secondary traits (numerical and physiological determinants of seed yield), or on the effect of growth habit shift on these traits. Field experiments were performed to compute this gain and the relationships between traits in potential growing conditions. Eight cultivars released between 1948 and 2004 were evaluated. Introduction of the procumbent habit in 1975 produced a mean increase of 52% in seed yield, which was related to year of cultivar release (YOR) only for CPGH (mean genetic gain of 0.43% y−1). This trend was driven by seed weight, a trait that registered a mean genetic gain of 0.29% y−1 (P = 0.026) only among procumbent cultivars (56% increase with habit change between 1973 and 1975). No genetic gain was computed for seed numbers, and only a 10% difference was registered between growth habits (CPGH > CEGH). Seed number was related to crop growth rate between R3 and R6.5 (r2 = 0.55, P < 0.001). This rate was higher for CPGH than for CEGH. Breeding increased the number of flowers per plant (0.86% y−1), and the number of pods per plant and pod set (CPGH > CEGH). Breeding had a clear effect (P < 0.001) on the determinants of seed weight, and a genetic gain of 0.52% y−1 was estimated for pod growth rate. Introduction of CPGH enhanced pod growth duration (37% increase). No trade-off was detected between seed number and seed weight because there was no source limitation to seed filling. Therefore, peanut seed yield might be further increased by improving the determinants of seed numbers and seed weight simultaneously.
publishDate 2013
dc.date.none.fl_str_mv 2013-06
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/11336/999
Haro, Ricardo J.; Baldessari, J.; Otegui, Maria Elena; Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components; Elsevier Science Bv; Field Crops Research; 149; 1; 6-2013; 76-83
0378-4290
url http://hdl.handle.net/11336/999
identifier_str_mv Haro, Ricardo J.; Baldessari, J.; Otegui, Maria Elena; Genetic improvement of peanut in Argentina between 1948 and 2004: Seed yield and its components; Elsevier Science Bv; Field Crops Research; 149; 1; 6-2013; 76-83
0378-4290
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.2013.04.021
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
dc.publisher.none.fl_str_mv Elsevier Science Bv
publisher.none.fl_str_mv Elsevier Science Bv
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instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
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