Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcane

Autores
Saez, Julio Victor; Mariotti, Jorge; Vega, Claudia Rosa Cecilia
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In subtropical environments where sugarcane (Saccharum spp.) crops are frequently limited by the duration of the growth cycle, earliness in maturity is a key genotypic trait. Using the concept of source–sink relationships, we hypothesised that earliness is controlled by the dynamics of tillering (DT), which define sink strength early in the growth cycle. Five modern commercial sugarcane genotypes with similar sucrose yields and varying degrees of earliness in ripening were grown in the field over three years and their DT, dynamics of sucrose accumulation (DS), and source–sink relationships over time were characterised. Canonical correlations and principal components analysis revealed that DT explained 68% of the total variance in DS. Early ripening genotypes exhibited the shortest thermal time to the end of tiller mortality (θTilmort), the lowest tiller survival and millable tiller number, and greatest sugar content at θTilmort (Sconc,Tilmort). The rate and duration of the sucrose accumulation phase did not explain the genotypic variation either in final sugar content or in earliness when considered in isolation without taking into account the effect of Sconc,Tilmort. In the set of genotypes examined, the variation in final sucrose yield was most explained by the variation in stalk number. We conclude that the dynamics of tiller appearance and senescence modified the early source–sink relationships and thus determined the differential sucrose contents around θTilmort and the earliness of maximal sugar accumulation. θTilmort, which was closely associated with the 14-leaf phenological stage, emerged as a candidate trait to screen for genotypic variation in early ripening, crop cycle duration, and yield.
EEA Famaillá
Fil: Saez, Julio Victor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Famaillá; Argentina
Fil: Mariotti, Jorge. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Mejoramiento Genético Vegetal; Argentina
Fil: Vega, Claudia R.C. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Área de Agronomía; Argentina
Fuente
Journal of Experimental Botany 70 (19) : 5157–5171 (October 2019)
Materia
Caña de Azúcar
Saccharum
Rendimiento
Genotipos
Maduramiento
Macollamiento
Sugarcane
Yields
Genotypes
Ripening
Tillering
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/9880
Acceder
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oai_identifier_str oai:localhost:20.500.12123/9880
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcaneSaez, Julio VictorMariotti, JorgeVega, Claudia Rosa CeciliaCaña de AzúcarSaccharumRendimientoGenotiposMaduramientoMacollamientoSugarcaneYieldsGenotypesRipeningTilleringIn subtropical environments where sugarcane (Saccharum spp.) crops are frequently limited by the duration of the growth cycle, earliness in maturity is a key genotypic trait. Using the concept of source–sink relationships, we hypothesised that earliness is controlled by the dynamics of tillering (DT), which define sink strength early in the growth cycle. Five modern commercial sugarcane genotypes with similar sucrose yields and varying degrees of earliness in ripening were grown in the field over three years and their DT, dynamics of sucrose accumulation (DS), and source–sink relationships over time were characterised. Canonical correlations and principal components analysis revealed that DT explained 68% of the total variance in DS. Early ripening genotypes exhibited the shortest thermal time to the end of tiller mortality (θTilmort), the lowest tiller survival and millable tiller number, and greatest sugar content at θTilmort (Sconc,Tilmort). The rate and duration of the sucrose accumulation phase did not explain the genotypic variation either in final sugar content or in earliness when considered in isolation without taking into account the effect of Sconc,Tilmort. In the set of genotypes examined, the variation in final sucrose yield was most explained by the variation in stalk number. We conclude that the dynamics of tiller appearance and senescence modified the early source–sink relationships and thus determined the differential sucrose contents around θTilmort and the earliness of maximal sugar accumulation. θTilmort, which was closely associated with the 14-leaf phenological stage, emerged as a candidate trait to screen for genotypic variation in early ripening, crop cycle duration, and yield.EEA FamailláFil: Saez, Julio Victor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Famaillá; ArgentinaFil: Mariotti, Jorge. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Mejoramiento Genético Vegetal; ArgentinaFil: Vega, Claudia R.C. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Área de Agronomía; ArgentinaOxford University Press2021-07-23T17:25:50Z2021-07-23T17:25:50Z2019-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/9880https://academic.oup.com/jxb/article/70/19/5157/54987351460-24310022-0957https://doi.org/10.1093/jxb/erz251Journal of Experimental Botany 70 (19) : 5157–5171 (October 2019)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/PNIND-081411/AR./Bases genéticas, moleculares y ecofisiológicas de la productividad y de la resistencia a estrés biótico y abiótico.info:eu-repograntAgreement/INTA/PNIND-1108064/AR./Bases ecofisiológicas del mejoramiento y sistemas de cultivo.info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-10-23T11:17:40Zoai:localhost:20.500.12123/9880instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:17:40.795INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcane
title Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcane
spellingShingle Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcane
Saez, Julio Victor
Caña de Azúcar
Saccharum
Rendimiento
Genotipos
Maduramiento
Macollamiento
Sugarcane
Yields
Genotypes
Ripening
Tillering
title_short Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcane
title_full Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcane
title_fullStr Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcane
title_full_unstemmed Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcane
title_sort Source–sink relationships during early crop development influence earliness of sugar accumulation in sugarcane
dc.creator.none.fl_str_mv Saez, Julio Victor
Mariotti, Jorge
Vega, Claudia Rosa Cecilia
author Saez, Julio Victor
author_facet Saez, Julio Victor
Mariotti, Jorge
Vega, Claudia Rosa Cecilia
author_role author
author2 Mariotti, Jorge
Vega, Claudia Rosa Cecilia
author2_role author
author
dc.subject.none.fl_str_mv Caña de Azúcar
Saccharum
Rendimiento
Genotipos
Maduramiento
Macollamiento
Sugarcane
Yields
Genotypes
Ripening
Tillering
topic Caña de Azúcar
Saccharum
Rendimiento
Genotipos
Maduramiento
Macollamiento
Sugarcane
Yields
Genotypes
Ripening
Tillering
dc.description.none.fl_txt_mv In subtropical environments where sugarcane (Saccharum spp.) crops are frequently limited by the duration of the growth cycle, earliness in maturity is a key genotypic trait. Using the concept of source–sink relationships, we hypothesised that earliness is controlled by the dynamics of tillering (DT), which define sink strength early in the growth cycle. Five modern commercial sugarcane genotypes with similar sucrose yields and varying degrees of earliness in ripening were grown in the field over three years and their DT, dynamics of sucrose accumulation (DS), and source–sink relationships over time were characterised. Canonical correlations and principal components analysis revealed that DT explained 68% of the total variance in DS. Early ripening genotypes exhibited the shortest thermal time to the end of tiller mortality (θTilmort), the lowest tiller survival and millable tiller number, and greatest sugar content at θTilmort (Sconc,Tilmort). The rate and duration of the sucrose accumulation phase did not explain the genotypic variation either in final sugar content or in earliness when considered in isolation without taking into account the effect of Sconc,Tilmort. In the set of genotypes examined, the variation in final sucrose yield was most explained by the variation in stalk number. We conclude that the dynamics of tiller appearance and senescence modified the early source–sink relationships and thus determined the differential sucrose contents around θTilmort and the earliness of maximal sugar accumulation. θTilmort, which was closely associated with the 14-leaf phenological stage, emerged as a candidate trait to screen for genotypic variation in early ripening, crop cycle duration, and yield.
EEA Famaillá
Fil: Saez, Julio Victor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Famaillá; Argentina
Fil: Mariotti, Jorge. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Mejoramiento Genético Vegetal; Argentina
Fil: Vega, Claudia R.C. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Área de Agronomía; Argentina
description In subtropical environments where sugarcane (Saccharum spp.) crops are frequently limited by the duration of the growth cycle, earliness in maturity is a key genotypic trait. Using the concept of source–sink relationships, we hypothesised that earliness is controlled by the dynamics of tillering (DT), which define sink strength early in the growth cycle. Five modern commercial sugarcane genotypes with similar sucrose yields and varying degrees of earliness in ripening were grown in the field over three years and their DT, dynamics of sucrose accumulation (DS), and source–sink relationships over time were characterised. Canonical correlations and principal components analysis revealed that DT explained 68% of the total variance in DS. Early ripening genotypes exhibited the shortest thermal time to the end of tiller mortality (θTilmort), the lowest tiller survival and millable tiller number, and greatest sugar content at θTilmort (Sconc,Tilmort). The rate and duration of the sucrose accumulation phase did not explain the genotypic variation either in final sugar content or in earliness when considered in isolation without taking into account the effect of Sconc,Tilmort. In the set of genotypes examined, the variation in final sucrose yield was most explained by the variation in stalk number. We conclude that the dynamics of tiller appearance and senescence modified the early source–sink relationships and thus determined the differential sucrose contents around θTilmort and the earliness of maximal sugar accumulation. θTilmort, which was closely associated with the 14-leaf phenological stage, emerged as a candidate trait to screen for genotypic variation in early ripening, crop cycle duration, and yield.
publishDate 2019
dc.date.none.fl_str_mv 2019-10
2021-07-23T17:25:50Z
2021-07-23T17:25:50Z
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/20.500.12123/9880
https://academic.oup.com/jxb/article/70/19/5157/5498735
1460-2431
0022-0957
https://doi.org/10.1093/jxb/erz251
url http://hdl.handle.net/20.500.12123/9880
https://academic.oup.com/jxb/article/70/19/5157/5498735
https://doi.org/10.1093/jxb/erz251
identifier_str_mv 1460-2431
0022-0957
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/PNIND-081411/AR./Bases genéticas, moleculares y ecofisiológicas de la productividad y de la resistencia a estrés biótico y abiótico.
info:eu-repograntAgreement/INTA/PNIND-1108064/AR./Bases ecofisiológicas del mejoramiento y sistemas de cultivo.
dc.rights.none.fl_str_mv 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)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv Journal of Experimental Botany 70 (19) : 5157–5171 (October 2019)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.982451

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