Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids
- Autores
- Hisse, Ignacio Ruben; D'andrea, Karina Elizabeth; Otegui, Maria Elena
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Maize (Zea mays L.) grain yield is assumed to be source limited during the flowering period but sink limited during grain growth; however, environmental restrictions during active grain filling may strongly affect final kernel weight (KW). In this study, we evaluated the effect of natural changes in photothermal conditions during lag phase (LP) and effective grain-filling period (EGFP) on KW, its physiological determinants, and the post-flowering source–sink relationships of flint and semident germplasm. F1 hybrids of flint × flint and dent × flint background were tested during four seasons (Y1, Y2, Y3, and Y4). Across years, the highest KW (286 mg) was obtained under the maximum photothermal quotients during LP (PTQLP = 1.18 MJ m−2 °C−1) and EGFP (PTQEGFP = 1.07 MJ m−2 °C−1) of Y2, whereas the smallest KW (252 mg) and source–sink ratio during grain filling was obtained under the lowest PTQEGFP (.79 MJ m−2 °C−1) of Y3. Supra-optimum temperatures during LP of Y3 negatively affected potential KW determination, and hence kernel growth rate (P <.001) as a result of reduced assimilate availability per kernel. Hybrids dent × flint exhibited higher grain yield, kernel number, and plant growth around flowering than flint × flint throughout evaluated seasons but had reduced source–sink relationship during grain filling (P <.05) and increased KW sensitivity (P <.001) to changes in the photothermal conditions. Results emphasized the importance of the photothermal environment during grain filling on KW determination (particularly for seasons with great photothermal imbalance between filling subphases) as well as the dependency of KW responses on the genetic background.
Fil: Hisse, Ignacio Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina
Fil: D'andrea, Karina Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina
Fil: Otegui, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina - Materia
-
Zea mays
grain weight
kernel type
photo-thermal coefficient - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/147916
Ver los metadatos del registro completo
id |
CONICETDig_309194a9e8bd6b809a342ab0171beb7a |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/147916 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybridsHisse, Ignacio RubenD'andrea, Karina ElizabethOtegui, Maria ElenaZea maysgrain weightkernel typephoto-thermal coefficienthttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Maize (Zea mays L.) grain yield is assumed to be source limited during the flowering period but sink limited during grain growth; however, environmental restrictions during active grain filling may strongly affect final kernel weight (KW). In this study, we evaluated the effect of natural changes in photothermal conditions during lag phase (LP) and effective grain-filling period (EGFP) on KW, its physiological determinants, and the post-flowering source–sink relationships of flint and semident germplasm. F1 hybrids of flint × flint and dent × flint background were tested during four seasons (Y1, Y2, Y3, and Y4). Across years, the highest KW (286 mg) was obtained under the maximum photothermal quotients during LP (PTQLP = 1.18 MJ m−2 °C−1) and EGFP (PTQEGFP = 1.07 MJ m−2 °C−1) of Y2, whereas the smallest KW (252 mg) and source–sink ratio during grain filling was obtained under the lowest PTQEGFP (.79 MJ m−2 °C−1) of Y3. Supra-optimum temperatures during LP of Y3 negatively affected potential KW determination, and hence kernel growth rate (P <.001) as a result of reduced assimilate availability per kernel. Hybrids dent × flint exhibited higher grain yield, kernel number, and plant growth around flowering than flint × flint throughout evaluated seasons but had reduced source–sink relationship during grain filling (P <.05) and increased KW sensitivity (P <.001) to changes in the photothermal conditions. Results emphasized the importance of the photothermal environment during grain filling on KW determination (particularly for seasons with great photothermal imbalance between filling subphases) as well as the dependency of KW responses on the genetic background.Fil: Hisse, Ignacio Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; ArgentinaFil: D'andrea, Karina Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; ArgentinaFil: Otegui, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; ArgentinaCrop Science Society of America2021-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/147916Hisse, Ignacio Ruben; D'andrea, Karina Elizabeth; Otegui, Maria Elena; Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids; Crop Science Society of America; Crop Science; 61; 3; 2-2021; 1996-20110011-183XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/ 10.1002/csc2.20481info:eu-repo/semantics/altIdentifier/url/https://acsess.onlinelibrary.wiley.com/doi/10.1002/csc2.20481info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:51:23Zoai:ri.conicet.gov.ar:11336/147916instacron: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 09:51:23.713CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids |
title |
Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids |
spellingShingle |
Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids Hisse, Ignacio Ruben Zea mays grain weight kernel type photo-thermal coefficient |
title_short |
Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids |
title_full |
Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids |
title_fullStr |
Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids |
title_full_unstemmed |
Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids |
title_sort |
Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids |
dc.creator.none.fl_str_mv |
Hisse, Ignacio Ruben D'andrea, Karina Elizabeth Otegui, Maria Elena |
author |
Hisse, Ignacio Ruben |
author_facet |
Hisse, Ignacio Ruben D'andrea, Karina Elizabeth Otegui, Maria Elena |
author_role |
author |
author2 |
D'andrea, Karina Elizabeth Otegui, Maria Elena |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Zea mays grain weight kernel type photo-thermal coefficient |
topic |
Zea mays grain weight kernel type photo-thermal coefficient |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 |
dc.description.none.fl_txt_mv |
Maize (Zea mays L.) grain yield is assumed to be source limited during the flowering period but sink limited during grain growth; however, environmental restrictions during active grain filling may strongly affect final kernel weight (KW). In this study, we evaluated the effect of natural changes in photothermal conditions during lag phase (LP) and effective grain-filling period (EGFP) on KW, its physiological determinants, and the post-flowering source–sink relationships of flint and semident germplasm. F1 hybrids of flint × flint and dent × flint background were tested during four seasons (Y1, Y2, Y3, and Y4). Across years, the highest KW (286 mg) was obtained under the maximum photothermal quotients during LP (PTQLP = 1.18 MJ m−2 °C−1) and EGFP (PTQEGFP = 1.07 MJ m−2 °C−1) of Y2, whereas the smallest KW (252 mg) and source–sink ratio during grain filling was obtained under the lowest PTQEGFP (.79 MJ m−2 °C−1) of Y3. Supra-optimum temperatures during LP of Y3 negatively affected potential KW determination, and hence kernel growth rate (P <.001) as a result of reduced assimilate availability per kernel. Hybrids dent × flint exhibited higher grain yield, kernel number, and plant growth around flowering than flint × flint throughout evaluated seasons but had reduced source–sink relationship during grain filling (P <.05) and increased KW sensitivity (P <.001) to changes in the photothermal conditions. Results emphasized the importance of the photothermal environment during grain filling on KW determination (particularly for seasons with great photothermal imbalance between filling subphases) as well as the dependency of KW responses on the genetic background. Fil: Hisse, Ignacio Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina Fil: D'andrea, Karina Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina Fil: Otegui, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina |
description |
Maize (Zea mays L.) grain yield is assumed to be source limited during the flowering period but sink limited during grain growth; however, environmental restrictions during active grain filling may strongly affect final kernel weight (KW). In this study, we evaluated the effect of natural changes in photothermal conditions during lag phase (LP) and effective grain-filling period (EGFP) on KW, its physiological determinants, and the post-flowering source–sink relationships of flint and semident germplasm. F1 hybrids of flint × flint and dent × flint background were tested during four seasons (Y1, Y2, Y3, and Y4). Across years, the highest KW (286 mg) was obtained under the maximum photothermal quotients during LP (PTQLP = 1.18 MJ m−2 °C−1) and EGFP (PTQEGFP = 1.07 MJ m−2 °C−1) of Y2, whereas the smallest KW (252 mg) and source–sink ratio during grain filling was obtained under the lowest PTQEGFP (.79 MJ m−2 °C−1) of Y3. Supra-optimum temperatures during LP of Y3 negatively affected potential KW determination, and hence kernel growth rate (P <.001) as a result of reduced assimilate availability per kernel. Hybrids dent × flint exhibited higher grain yield, kernel number, and plant growth around flowering than flint × flint throughout evaluated seasons but had reduced source–sink relationship during grain filling (P <.05) and increased KW sensitivity (P <.001) to changes in the photothermal conditions. Results emphasized the importance of the photothermal environment during grain filling on KW determination (particularly for seasons with great photothermal imbalance between filling subphases) as well as the dependency of KW responses on the genetic background. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-02 |
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/11336/147916 Hisse, Ignacio Ruben; D'andrea, Karina Elizabeth; Otegui, Maria Elena; Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids; Crop Science Society of America; Crop Science; 61; 3; 2-2021; 1996-2011 0011-183X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/147916 |
identifier_str_mv |
Hisse, Ignacio Ruben; D'andrea, Karina Elizabeth; Otegui, Maria Elena; Kernel weight responses to the photothermal environment in maize dent × flint and flint × flint hybrids; Crop Science Society of America; Crop Science; 61; 3; 2-2021; 1996-2011 0011-183X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/ 10.1002/csc2.20481 info:eu-repo/semantics/altIdentifier/url/https://acsess.onlinelibrary.wiley.com/doi/10.1002/csc2.20481 |
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 |
Crop Science Society of America |
publisher.none.fl_str_mv |
Crop Science Society of America |
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 |
_version_ |
1844613580419235840 |
score |
13.070432 |