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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
16/02/2009 |
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Data da última atualização: |
07/07/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
DÍAZ-TRUJILLO, C.; FORTES, C. F.; CAPDEVILLE, G. de; JALINK, H.; SOUZA, M.; KEMA, G. H. J. |
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Afiliação: |
Caucasella Díaz-Trujillo, Wageningen University and Research Centre; Cláudia Fortes Ferreira, Wageningen University and Research Centre/CNPMF; Guy De Capdeville, Wageningen University and Research Centre; Henk Janlink, Wageningen University and Research Centre; Manoel Souza, Embrapa-LABEX Europe/Wageningen University and Research Centre; Gert H. J. Kema, Wageningen University and Research Centre. |
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Título: |
A reliable routine assay for black leaf streak disease of bananas caused by Mycosphaerella fijiensis. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: EUROPEAN CONFERENCE ON FUNGAL GENETICS, 9., 2008, Edinburgh. Meeting abstracts... Edinburgh: University of Edinburgh, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Mycosphaerella fijiensis (Paracercospora fijiensis), an ascomycete fungus, is the causal agent of Black Sigatoka (also know as black leaf streak disease), the most devastating foliar disease of banana and plantain (Musa spp.). This pathogen is a global threat to banana plantations, demanding a major input of fungicides for its control. In some banana production areas in South and Central America more than 50 sprays are required annually to control this disease. The genome sequence of M. fijiensis CIRAD86 was recently made publicly accessible (http://genome.jgi-psf.org/Mycfi1/Mycfi1.home.html). The availability of this genome database is essential to increase our understanding of this host-pathogen interaction. The molecular aspects of the interaction are largely unknown. In order to study these we developed a reliable infection protocol for routine phenotyping assays and specific melocular/expression studies. During the biotrophic stage, which can last for over three weeks, M. fijiensis does not trigger macroscopic symptoms. These only appear during the necrotrophic phase, which onset varies with pathogen virulence, nutrients availability, environmental conditions and susceptibility of the cultivar. |
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Thesagro: |
Banana; Doença de Planta; Fungo; Genoma; Patógeno; Sigatoka Negra. |
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Categoria do assunto: |
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Marc: |
LEADER 01983nam a2200241 a 4500
001 1655543
005 2023-07-07
008 2008 bl uuuu u00u1 u #d
100 1 $aDÍAZ-TRUJILLO, C.
245 $aA reliable routine assay for black leaf streak disease of bananas caused by Mycosphaerella fijiensis.$h[electronic resource]
260 $aIn: EUROPEAN CONFERENCE ON FUNGAL GENETICS, 9., 2008, Edinburgh. Meeting abstracts... Edinburgh: University of Edinburgh$c2008
520 $aMycosphaerella fijiensis (Paracercospora fijiensis), an ascomycete fungus, is the causal agent of Black Sigatoka (also know as black leaf streak disease), the most devastating foliar disease of banana and plantain (Musa spp.). This pathogen is a global threat to banana plantations, demanding a major input of fungicides for its control. In some banana production areas in South and Central America more than 50 sprays are required annually to control this disease. The genome sequence of M. fijiensis CIRAD86 was recently made publicly accessible (http://genome.jgi-psf.org/Mycfi1/Mycfi1.home.html). The availability of this genome database is essential to increase our understanding of this host-pathogen interaction. The molecular aspects of the interaction are largely unknown. In order to study these we developed a reliable infection protocol for routine phenotyping assays and specific melocular/expression studies. During the biotrophic stage, which can last for over three weeks, M. fijiensis does not trigger macroscopic symptoms. These only appear during the necrotrophic phase, which onset varies with pathogen virulence, nutrients availability, environmental conditions and susceptibility of the cultivar.
650 $aBanana
650 $aDoença de Planta
650 $aFungo
650 $aGenoma
650 $aPatógeno
650 $aSigatoka Negra
700 1 $aFORTES, C. F.
700 1 $aCAPDEVILLE, G. de
700 1 $aJALINK, H.
700 1 $aSOUZA, M.
700 1 $aKEMA, G. H. J.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
18/09/2020 |
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Data da última atualização: |
14/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
REIS, A. A. dos; WERNER, J. P. S.; SILVA, B. C.; FIGUEIREDO, G. K. D. A.; ANTUNES, J. F. G.; ESQUERDO, J. C. D. M.; COUTINHO, A. C.; LAMPARELLI, R. A. C.; ROCHA, J. V.; MAGALHÃES, P. S. G. |
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Afiliação: |
ALINY A. DOS REIS, Nipe, Feagri/Unicamp; JOÃO P. S. WERNER, Feagri/Unicamp; BRUNA C. SILVA, Feagri/Unicamp; GLEYCE K. D. A. FIGUEIREDO, Feagri/Unicamp; JOAO FRANCISCO GONCALVES ANTUNES, CNPTIA; JULIO CESAR DALLA MORA ESQUERDO, CNPTIA; ALEXANDRE CAMARGO COUTINHO, CNPTIA; RUBENS A. C. LAMPARELLI, Nipe/Unicamp; JANSLE V. ROCHA, Feagri/Unicamp; PAULO S. G. MAGALHÃES, Nipe/Unicamp. |
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Título: |
Monitoring pasture aboveground biomass and canopy height in an integrated crop-livestock system using textural information from PlanetScope imagery. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Remote Sensing, v. 12, n. 16, p. 1-21, Aug. 2020. |
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DOI: |
10.3390/rs12162534 |
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Idioma: |
Inglês |
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Notas: |
Article number: 2534. |
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Conteúdo: |
Abstract: Fast and accurate quantification of the available pasture biomass is essential to support grazing management decisions in intensively managed fields. The increasing temporal and spatial resolutions oered by the new generation of orbital platforms, such as Planet CubeSat satellites, have improved the capability of monitoring pasture biomass using remotely sensed data. Here, we assessed the feasibility of using spectral and textural information derived from PlanetScope imagery for estimating pasture aboveground biomass (AGB) and canopy height (CH) in intensively managed fields and the potential for enhanced accuracy by applying the extreme gradient boosting (XGBoost) algorithm. Our results demonstrated that the texture measures enhanced AGB and CH estimations compared to the performance obtained using only spectral bands or vegetation indices. The best results were found by employing the XGBoost models based only on texture measures. These models achieved moderately high accuracy to predict pasture AGB and CH, explaining 65% and 89% of AGB (root mean square error (RMSE) = 26.52%) and CH (RMSE = 20.94%) variability, respectively. This study demonstrated the potential of using texture measures to improve the prediction accuracy of AGB and CH models based on high spatiotemporal resolution PlanetScope data in intensively managed mixed pastures. |
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Palavras-Chave: |
Extreme gradient boosting; Floresta aleatória; Integrated systems; Mixed pastures; Pastagem tropical; Pasto; Random forest; Texture measures. |
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Thesagro: |
Biomassa; Pastagem Mista; Sensoriamento Remoto. |
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Thesaurus NAL: |
Aboveground biomass; Biomass; Pastures; Remote sensing; Tropical pastures. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/216114/1/AP-Monitoring-pasture-aboveground-2020.pdf
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Marc: |
LEADER 02709naa a2200445 a 4500
001 2125026
005 2021-12-14
008 2020 bl uuuu u00u1 u #d
024 7 $a10.3390/rs12162534$2DOI
100 1 $aREIS, A. A. dos
245 $aMonitoring pasture aboveground biomass and canopy height in an integrated crop-livestock system using textural information from PlanetScope imagery.$h[electronic resource]
260 $c2020
500 $aArticle number: 2534.
520 $aAbstract: Fast and accurate quantification of the available pasture biomass is essential to support grazing management decisions in intensively managed fields. The increasing temporal and spatial resolutions oered by the new generation of orbital platforms, such as Planet CubeSat satellites, have improved the capability of monitoring pasture biomass using remotely sensed data. Here, we assessed the feasibility of using spectral and textural information derived from PlanetScope imagery for estimating pasture aboveground biomass (AGB) and canopy height (CH) in intensively managed fields and the potential for enhanced accuracy by applying the extreme gradient boosting (XGBoost) algorithm. Our results demonstrated that the texture measures enhanced AGB and CH estimations compared to the performance obtained using only spectral bands or vegetation indices. The best results were found by employing the XGBoost models based only on texture measures. These models achieved moderately high accuracy to predict pasture AGB and CH, explaining 65% and 89% of AGB (root mean square error (RMSE) = 26.52%) and CH (RMSE = 20.94%) variability, respectively. This study demonstrated the potential of using texture measures to improve the prediction accuracy of AGB and CH models based on high spatiotemporal resolution PlanetScope data in intensively managed mixed pastures.
650 $aAboveground biomass
650 $aBiomass
650 $aPastures
650 $aRemote sensing
650 $aTropical pastures
650 $aBiomassa
650 $aPastagem Mista
650 $aSensoriamento Remoto
653 $aExtreme gradient boosting
653 $aFloresta aleatória
653 $aIntegrated systems
653 $aMixed pastures
653 $aPastagem tropical
653 $aPasto
653 $aRandom forest
653 $aTexture measures
700 1 $aWERNER, J. P. S.
700 1 $aSILVA, B. C.
700 1 $aFIGUEIREDO, G. K. D. A.
700 1 $aANTUNES, J. F. G.
700 1 $aESQUERDO, J. C. D. M.
700 1 $aCOUTINHO, A. C.
700 1 $aLAMPARELLI, R. A. C.
700 1 $aROCHA, J. V.
700 1 $aMAGALHÃES, P. S. G.
773 $tRemote Sensing$gv. 12, n. 16, p. 1-21, Aug. 2020.
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Embrapa Agricultura Digital (CNPTIA) |
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