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29. | | Vicente, E.; Giménez, G.; Manzzioni, A.; Lenzi, A., González, M. Nuevos genotipos para el cultivo protegido de frutilla obtenidos por el programa de mejoramiento genético de Inia, Uruguay ln: VI Simpósio Nacional do Morango / V Encontro sobre pequeñas frutas e frutas nativas do Mercosul: resumos e palestras, 14 al 16 de agosto 2012 Vizzotto, M.; Reisser Junior, C.; Barbieri, R.L.; Franzon, R.C. (eds. tec.). Anais. Brasilia (BR): EMBRAPA, 2012. p. 72Biblioteca(s): INIA Las Brujas. |
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32. | | Vicente, E.; Manzzioni, A.; Giménez, G.; González, M.; Lenzi, A. Tecnología para la producción local de plantas y mejoramiento genético: bases para el desarrollo del cultivo de frutilla en el litoral Norte de Uruguay ln: VI Simpósio Nacional do Morango / V Encontro sobre pequeñas frutas e frutas nativas do Mercosul: resumos e palestras, 14 al 16 de agosto 2012 Vizzotto, M.; Reisser Junior, C.; Barbieri, R.L.; Franzon, R.C. (eds. tec.). Anais. Brasilia (BR): EMBRAPA, 2012. p. 52Biblioteca(s): INIA Las Brujas. |
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37. | | VIGNALE, L.; DUBRA, A.; AGORIO, A.; GONZALEZ, M.; GÓMEZ, M.M. Detección y análisis de virus presentes en cultivos de Solanum tuberosum en Uruguay. In: Sociedad Uruguaya de Fitopatología Jornada Uruguaya de Fitopatología, 6., Jornada Uruguaya de Protección Vegetal, 4., 21-22 octubre, 2021, Montevideo, Uruguay. Libro de resúmenes. Montevideo (UY): Sociedad Uruguay de Fitopatología (SUFIT), 2021. p. 54 Financiamiento: Fondo Vaz Ferreira, convocatoria 2019, DICYT-MEC - Proyecto II/FVF2019.Biblioteca(s): INIA Treinta y Tres. |
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40. | | García, C.; González, M.; Vilaró, F.; Rabuffetti, A.; Moura, M.; Esmolark, C.; García, M. Efecto del riego, la fertilización nitrogenada y la densidad de plantación en la producción de tomate para industria Las Brujas, Canelones (Uruguay): INIA, 2008. p.19-21 (INIA Serie Actividades de Difusión ; 528)Biblioteca(s): INIA Las Brujas. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
05/02/2020 |
Actualizado : |
05/02/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
DE SOUZA, R.; GRASSO, R.; PEÑA-FLEITAS, M.T.; GALLARDO, M.; THOMPSON, R.B.; PADILLA, F.M. |
Afiliación : |
ROMINA DE SOUZA, Department of Agronomy, University of Almeria, Almería, Spain; RAFAEL GILLSON GRASSO RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; M. TERESA PEÑA-FLEITAS, Department of Agronomy, University of Almeria, Almería, Spain; MARISA GALLARDO, Department of Agronomy, University of Almeria, Almería, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, Almería, Spain; RODNEY B. THOMPSON, Department of Agronomy, University of Almeria, Almería, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, Almería, Spain; FRANCISCO M. PADILLA, Department of Agronomy, University of Almeria, Almería, Spain; CIAIMBITAL Research Centre for Mediterranean Intensive Agrosystems and Agrifood Biotechnology, University of Almeria, Almería, Spain. |
Título : |
Effect of cultivar on chlorophyll meter and canopy reflectance measurements in cucumber. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
Sensors (Switzerland), 2 January 2020, Volume 20, Issue 2, Article number 509. OPEN ACCESS. Doi: https://doi.org/10.3390/s20020509 |
ISSN : |
1424-8220 |
DOI : |
10.3390/s20020509 |
Idioma : |
Inglés |
Notas : |
Article history: Received: 29 November 2019 / Revised: 13 January 2020 / Accepted: 14 January 2020 / Published: 16 January 2020.
This article belongs to the Special Issue Proximal Sensing for Nitrogen Management: https://www.mdpi.com/journal/sensors/special_issues/Proximal_Nitrogen
Funding information: Funding: This research was funded by Spanish Ministry of Economy and Competitiveness (Project AGL2015-67076-R). RdS was supported by a FPI grant (BES-2016-076706) and FMP by a Ramón y Cajal grant (RYC-2014-15815).
Correspongin author: Romina de Souza (rominadesouzai@gmail.com); Rafael Grasso (rgrasso@inia.org.uy); M. Teresa Peña-Fleitas (mtpena.fl@ual.es); Marisa Gallardo (mgallard@ual.es); Rodney B. Thompson (rodney@ual.es); Francisco Padilla (f.padilla@ual.es) |
Contenido : |
ABSTRACT.
Optical sensors can be used to assess crop N status to assist with N fertilizer management. Differences between cultivars may affect optical sensor measurement. Cultivar effects on measurements made with the SPAD-502 (Soil Plant Analysis Development) meter and the MC-100 (Chlorophyll Concentration Meter), and of several vegetation indices measured with the Crop Circle ACS470 canopy reflectance sensor, were assessed. A cucumber (Cucumis sativus L.) crop was grown in a greenhouse, with three cultivars. Each cultivar received three N treatments, of increasing N concentration, being deficient (N1), sufficient (N2) and excessive (N3). There were significant differences between cultivars in the measurements made with both chlorophyll meters, particularly when N supply was sufficient and excessive (N2 and N3 treatments, respectively). There were no consistent differences between cultivars in vegetation indices. Optical sensor measurements were strongly linearly related to leaf N content in each of the three cultivars. The lack of a consistent effect of cultivar on the relationship with leaf N content suggests that a unique equation to estimate leaf N content from vegetation indices can be applied to all three cultivars. Results of chlorophyll meter measurements suggest that care should be taken when using sufficiency values, determined for a particular cultivar. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. |
Palabras claves : |
Genotype; Greenhouse; Leaf nitrogen; Proximal optical sensors; Vegetation index. |
Asunto categoría : |
F01 Cultivo |
URL : |
https://www.mdpi.com/1424-8220/20/2/509/pdf
|
Marc : |
LEADER 03074naa a2200277 a 4500 001 1060764 005 2020-02-05 008 2020 bl uuuu u00u1 u #d 022 $a1424-8220 024 7 $a10.3390/s20020509$2DOI 100 1 $aDE SOUZA, R. 245 $aEffect of cultivar on chlorophyll meter and canopy reflectance measurements in cucumber.$h[electronic resource] 260 $c2020 500 $aArticle history: Received: 29 November 2019 / Revised: 13 January 2020 / Accepted: 14 January 2020 / Published: 16 January 2020. This article belongs to the Special Issue Proximal Sensing for Nitrogen Management: https://www.mdpi.com/journal/sensors/special_issues/Proximal_Nitrogen Funding information: Funding: This research was funded by Spanish Ministry of Economy and Competitiveness (Project AGL2015-67076-R). RdS was supported by a FPI grant (BES-2016-076706) and FMP by a Ramón y Cajal grant (RYC-2014-15815). Correspongin author: Romina de Souza (rominadesouzai@gmail.com); Rafael Grasso (rgrasso@inia.org.uy); M. Teresa Peña-Fleitas (mtpena.fl@ual.es); Marisa Gallardo (mgallard@ual.es); Rodney B. Thompson (rodney@ual.es); Francisco Padilla (f.padilla@ual.es) 520 $aABSTRACT. Optical sensors can be used to assess crop N status to assist with N fertilizer management. Differences between cultivars may affect optical sensor measurement. Cultivar effects on measurements made with the SPAD-502 (Soil Plant Analysis Development) meter and the MC-100 (Chlorophyll Concentration Meter), and of several vegetation indices measured with the Crop Circle ACS470 canopy reflectance sensor, were assessed. A cucumber (Cucumis sativus L.) crop was grown in a greenhouse, with three cultivars. Each cultivar received three N treatments, of increasing N concentration, being deficient (N1), sufficient (N2) and excessive (N3). There were significant differences between cultivars in the measurements made with both chlorophyll meters, particularly when N supply was sufficient and excessive (N2 and N3 treatments, respectively). There were no consistent differences between cultivars in vegetation indices. Optical sensor measurements were strongly linearly related to leaf N content in each of the three cultivars. The lack of a consistent effect of cultivar on the relationship with leaf N content suggests that a unique equation to estimate leaf N content from vegetation indices can be applied to all three cultivars. Results of chlorophyll meter measurements suggest that care should be taken when using sufficiency values, determined for a particular cultivar. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. 653 $aGenotype 653 $aGreenhouse 653 $aLeaf nitrogen 653 $aProximal optical sensors 653 $aVegetation index 700 1 $aGRASSO, R. 700 1 $aPEÑA-FLEITAS, M.T. 700 1 $aGALLARDO, M. 700 1 $aTHOMPSON, R.B. 700 1 $aPADILLA, F.M. 773 $tSensors (Switzerland), 2 January 2020, Volume 20, Issue 2, Article number 509. OPEN ACCESS. Doi: https://doi.org/10.3390/s20020509
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