Breeding effects on canopy light attenuation in maize: a retrospective and prospective analysis
The light attenuation process within a plant canopy defines energy capture and vertical distribution of light and nitrogen (N). The vertical light distribution can be quantitatively described with the extinction coefficient (k), which associates the fraction of intercepted photosynthetically active...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Oxford University Press
2022
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/12080 https://academic.oup.com/jxb/article-abstract/73/5/1301/6481165 https://doi.org/10.1093/jxb/erab503 |
| _version_ | 1855484905608183808 |
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| author | Lacasa, Josefina Ciampitti, Ignacio A. Amas, Juan Ignacio Curín, Facundo Luque, Sergio F. Otegui, María Elena |
| author_browse | Amas, Juan Ignacio Ciampitti, Ignacio A. Curín, Facundo Lacasa, Josefina Luque, Sergio F. Otegui, María Elena |
| author_facet | Lacasa, Josefina Ciampitti, Ignacio A. Amas, Juan Ignacio Curín, Facundo Luque, Sergio F. Otegui, María Elena |
| author_sort | Lacasa, Josefina |
| collection | INTA Digital |
| description | The light attenuation process within a plant canopy defines energy capture and vertical distribution of light and nitrogen (N). The vertical light distribution can be quantitatively described with the extinction coefficient (k), which associates the fraction of intercepted photosynthetically active radiation (fPARi) with the leaf area index (LAI). Lower values of k correspond to upright leaves and homogeneous vertical light distribution, increasing radiation use efficiency (RUE). Yield gains in maize (Zea mays L.) were accompanied by increases in optimum plant density and leaf erectness. Thus, the yield-driven breeding programs and management changes, such as reduced row spacing, selected a more erect leaf habit under different maize production systems (e.g., China and the USA). In this study, data from Argentina revealed that k decreased at a rate of 1.1% year–1 since 1989, regardless of plant density and in agreement with Chinese reports (1.0% year–1 since 1981). A reliable assessment of changes in k over time is critical for predicting (i) modifications in resource use efficiency (e.g. radiation, water, and N), improving estimations derived from crop simulation models; (ii) differences in productivity caused by management practices; and (iii) limitations to further exploit this trait with breeding. |
| format | Artículo |
| id | INTA12080 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | INTA120802022-06-13T11:10:48Z Breeding effects on canopy light attenuation in maize: a retrospective and prospective analysis Lacasa, Josefina Ciampitti, Ignacio A. Amas, Juan Ignacio Curín, Facundo Luque, Sergio F. Otegui, María Elena Maíz Mejora Nitrógeno Fotosíntesis Radiación Rendimiento de Cultivos Maize Breeding Nitrogen Photosynthesis Radiation Crop Yield Canopy Design Light Extinction Coefficient Light Interception The light attenuation process within a plant canopy defines energy capture and vertical distribution of light and nitrogen (N). The vertical light distribution can be quantitatively described with the extinction coefficient (k), which associates the fraction of intercepted photosynthetically active radiation (fPARi) with the leaf area index (LAI). Lower values of k correspond to upright leaves and homogeneous vertical light distribution, increasing radiation use efficiency (RUE). Yield gains in maize (Zea mays L.) were accompanied by increases in optimum plant density and leaf erectness. Thus, the yield-driven breeding programs and management changes, such as reduced row spacing, selected a more erect leaf habit under different maize production systems (e.g., China and the USA). In this study, data from Argentina revealed that k decreased at a rate of 1.1% year–1 since 1989, regardless of plant density and in agreement with Chinese reports (1.0% year–1 since 1981). A reliable assessment of changes in k over time is critical for predicting (i) modifications in resource use efficiency (e.g. radiation, water, and N), improving estimations derived from crop simulation models; (ii) differences in productivity caused by management practices; and (iii) limitations to further exploit this trait with breeding. EEA Pergamino Fil: Lacasa, Josefina. Kansas State University. Throckmorton Plant Science Center. Department of Agronomy; Estados Unidos Fil: Lacasa, Josefina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina Fil: Ciampitti, Ignacio. Kansas State University. Throckmorton Plant Science Center. Department of Agronomy; Estados Unidos Fil: Amas, Juan I. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina Fil: Amas, Juan I. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina Fil: Curín, Facundo. Centro de Investigaciones y Transferencias del Noroeste de la Provincia de Buenos Aires (CIT-NOBA-CONICET); Argentina Fil: Luque, Sergio F. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias. Cátedra de Cereales y Oleaginosas; Argentina Fil: Otegui, María E. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina Fil: Otegui, María E. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina Fil: Otegui, María Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina 2022-06-13T11:05:47Z 2022-06-13T11:05:47Z 2022-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/12080 https://academic.oup.com/jxb/article-abstract/73/5/1301/6481165 0022-0957 1460-2431 (online) https://doi.org/10.1093/jxb/erab503 eng info:eu-repo/semantics/restrictedAccess application/pdf Oxford University Press Journal of Experimental Botany 73 (5) : 1301-1311. (March 2022) |
| spellingShingle | Maíz Mejora Nitrógeno Fotosíntesis Radiación Rendimiento de Cultivos Maize Breeding Nitrogen Photosynthesis Radiation Crop Yield Canopy Design Light Extinction Coefficient Light Interception Lacasa, Josefina Ciampitti, Ignacio A. Amas, Juan Ignacio Curín, Facundo Luque, Sergio F. Otegui, María Elena Breeding effects on canopy light attenuation in maize: a retrospective and prospective analysis |
| title | Breeding effects on canopy light attenuation in maize: a retrospective and prospective analysis |
| title_full | Breeding effects on canopy light attenuation in maize: a retrospective and prospective analysis |
| title_fullStr | Breeding effects on canopy light attenuation in maize: a retrospective and prospective analysis |
| title_full_unstemmed | Breeding effects on canopy light attenuation in maize: a retrospective and prospective analysis |
| title_short | Breeding effects on canopy light attenuation in maize: a retrospective and prospective analysis |
| title_sort | breeding effects on canopy light attenuation in maize a retrospective and prospective analysis |
| topic | Maíz Mejora Nitrógeno Fotosíntesis Radiación Rendimiento de Cultivos Maize Breeding Nitrogen Photosynthesis Radiation Crop Yield Canopy Design Light Extinction Coefficient Light Interception |
| url | http://hdl.handle.net/20.500.12123/12080 https://academic.oup.com/jxb/article-abstract/73/5/1301/6481165 https://doi.org/10.1093/jxb/erab503 |
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