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Biblioteca (s) :  INIA La Estanzuela.
Fecha :  29/10/2020
Actualizado :  21/03/2023
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  AHMAD, R.; YANG, B.; ETTLIN, G.; BERGER, A.; RODRÍGUEZ-BOCCA, P.
Afiliación :  REHAAN AHMAD, Cupertino High School, 10100 Finch Avenue, Cupertino, CA 95014, USA.; Cupertino High School, 10100 Finch Avenue, Cupertino, CA 95014, USA.; GUILLERMO ETTLIN, Facultad de Ingeniería, Instituto de Computación, Universidad de la República, Julio Herrera y Reissig 565, Montevideo 11300, Uruguay.; ANDRES GUSTAVO BERGER RICCA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO RODRÍGUEZ BOCCA, Facultad de Ingeniería, Instituto de Computación, Universidad de la República, Julio Herrera y Reissig 565, Montevideo 11300, Uruguay.
Título :  A machine-learning based ConvLSTM architecture for NDVI forecasting.
Fecha de publicación :  2023
Fuente / Imprenta :  International Transactions in Operational Research, 2023, Volume 30, Issue 4, Pages 2025 - 2048. doi: https://doi.org/10.1111/itor.12887
ISSN :  0969-6016 (print); 1475-3995 (electronic)
DOI :  10.1111/itor.12887
Idioma :  Inglés
Notas :  Article history: Received 24 September 2019; Received in revised form 7 August 2020; Accepted 5 October 2020: First published 22 October 2020. -- Corresponding author: Rodríguez-Bocca, P.; Facultad de Ingeniería, Instituto de Computación, Universidad de la República, Julio Herrera y Reissig 565, Montevideo, Uruguay; email:prbocca@fing.edu.uy -- FUNDING: This research was partially supported by the "Comisión Sectorial de Investigación Científica (CSIC), UDELAR" and the "Programa de Desarrollo de las Ciencias Básicas (PEDECIBA)" of Uruguay. Some of the calculations reported in this paper were performed in ClusterUY, a newly installed platform for high-performance scientific computing at the National Supercomputing Center, Uruguay. -- Special Issue: OR and Big Data in Agriculture.
Contenido :  Abstract:Normalized difference vegetation index (NDVI) is an essential remote measurement for agricultural studies because of its strong correlation with crop growth and yield. Accurate and comprehensive NDVI forecasts thus provide effective future projections of crop yield for precise agricultural planning and budgeting. Previous recurrent neural network (RNN) based forecasting methodologies have only performed single-pixel or large-area-average NDVI predictions. We present an alternative RNN-based deep-learning architecture, the convolutional long short-term memory (ConvLSTM), to supply much more comprehensive and detailed NDVI forecasts. In this paper, a single ConvLSTM is capable of 10,000-pixel field-level NDVI predictions, providing a more practical methodology for agricultural producers than single-pixel studies. We compare our model to the parametric crop growth model (PCGM), another multipixel field-level NDVI forecasting technique. We test each model over the same set of soybean crop field pixels with the root mean square error (RMSE) metric. The training configuration of each model is defined by the number of seasons of historical data used for weight optimization. When the best training configuration of the model found is used, the ConvLSTM obtains an RMSE of 0.0782, outperforming the PCGM?s RMSE of 0.0989 (an improvement of 0.0207 in precision represents a large gain in the accuracy of production volume prediction when projected into large production areas). Fin... Presentar Todo
Palabras claves :  CONVLSTM NEURAL NETWORKS; DEEP LEARNING; NORMALIZED DIFFERENCE VEGETATION INDEX; OPTIMIZATION; PREDICTIVE ANALYSIS.
Asunto categoría :  F01 Cultivo
URL :  https://onlinelibrary.wiley.com/doi/epdf/10.1111/itor.12887
Marc :  Presentar Marc Completo
Registro original :  INIA La Estanzuela (LE)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LE103230 - 1PXIAP - DDPP/Intl. Trans. in Op. Res./2023

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Biblioteca (s) :  INIA La Estanzuela.
Fecha actual :  04/03/2020
Actualizado :  05/09/2022
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Circulación / Nivel :  Internacional - --
Autor :  MENA, E.; STEWART, S.; MONTESANO, M.; PONCE DE LEÓN, I.
Afiliación :  EILYN MENA, Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.; SILVINA MARIA STEWART SONEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARCOS MONTESANO, Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.; INÉS PONCE DE LEÓN, Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.
Título :  Soybean stem canker caused by diaporthe caulivora; pathogen diversity, colonization process, and plant defense activation.
Fecha de publicación :  2020
Fuente / Imprenta :  Frontiers in Plant Science, 23 January 2020, Volume 10, Article number 1733. OPEN ACCESS. Doi: https://doi.org/10.3389/fpls.2019.01733
DOI :  10.3389/fpls.2019.01733
Idioma :  Inglés
Notas :  Article history:Received: 20 May 2019.//Accepted: 09 December 2019.// Published: 23 January 2020. The authors thank Ricardo Larraya for technical assistance and Andrés Di Paolo for assistance in confocal microscopy analysis.This work was supported by Agencia Nacional de Investigación e Innovación (ANII) (grant RTS-1-2014, and graduate fellowships), and Programa de Desarrollo de las Ciencias Básicas (PEDECIBA) Uruguay.The datasets generated for this study can be found in the GeneBank database (MK483139-MK483213, MK507892, and MN584748-MN584826).
Contenido :  Abstract:Soybean is an important crop in South America, and its production is limited by fungal diseases caused by species from the genus Diaporthe, including seed decay, pod and stem blight, and soybean stem canker (SSC). In this study, we focused on Diaporthe species isolated from soybean plants with SSC lesions in different parts of Uruguay. Diaporthe diversity was determined by sequencing the internal transcribed spacer (ITS) regions of ribosomal RNA and a partial region of the translation elongation factor 1-alpha gene (TEF1?). Phylogenetic analysis showed that the isolates belong to five defined groups of Diaporthe species, Diaporthe caulivora and Diaporthe longicolla being the most predominant species present in stem canker lesions. Due to the importance of D. caulivora as the causal agent of SSC in the region and other parts of the world, we further characterized the interaction of this pathogen with soybean. Based on genetic diversity of D. caulivora isolates evaluated with inter-sequence single repetition (ISSR), three different isolates were selected for pathogenicity assays. Differences in virulence were observed among the selected D. caulivora isolates on susceptible soybean plants. Further inspection of the infection and colonization process showed that D. caulivora hyphae are associated with trichomes in petioles, leaves, and stems, acting probably as physical adhesion sites of the hyphae. D. caulivora colonized the stem rapidly reaching the phloem and the xyl... Presentar Todo
Palabras claves :  CELL WALL; DEFENSE GENES; DIAPORTHE CAULIVORA; DISEASE SYMPTOMS; INTERNAL TRANSCRIBED SPACER (ITS) RIBOSOMAL RNA (RDNA); PATHOGEN COLONIZATION; SOYBEAN STEM CANKER; TRANSLATION ELONGATION FACTOR 1-ALPHA GENE (TEF1a).
Thesagro :  ENFERMEDADES DE LAS PLANTAS; PATÓGENOS; SOJA.
Asunto categoría :  H20 Enfermedades de las plantas
URL :  http://www.ainfo.inia.uy/digital/bitstream/item/16699/1/fpls-10-01733.pdf
https://www.frontiersin.org/articles/10.3389/fpls.2019.01733/pdf
Marc :  Presentar Marc Completo
Registro original :  INIA La Estanzuela (LE)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LE103091 - 1PXIAP - DDPP/Frontiers in Plant Science/2020
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