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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
29/09/2021 |
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Data da última atualização: |
29/09/2021 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FAJARDO, T. V. M.; NHANI JUNIOR, A.; NICKEL, O. |
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Afiliação: |
THOR VINICIUS MARTINS FAJARDO, CNPUV; ANTONIO NHANI JUNIOR, CNPTIA; OSMAR NICKEL, CNPUV. |
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Título: |
Analysis of virome by high-throughput sequencing revealed multiple infection in a single grapevine plant. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 52., 2021. Anais... SBF, 2021. p. 194. |
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ISBN: |
9786599413551 |
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Idioma: |
Inglês |
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Notas: |
Evento online. |
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Conteúdo: |
Grapevines (Vitis sp.) can host up to 86 virus species, some of which affect plant vigor, production and fruit quality. In 2019, cv. BRS Bibiana, a hybrid vine showing mild leafroll symptoms, collected in an experimental field in Canoinhas-SC, Brazil, was investigated for viruses. |
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Palavras-Chave: |
Grapevines; High-throughput sequencing; HTS; NGS; Videira; Viroid; Viroma; Vitis sp. |
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Thesagro: |
Vírus. |
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Thesaurus Nal: |
Vines. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01074nam a2200277 a 4500
001 2134885
005 2021-09-29
008 2021 bl uuuu u01u1 u #d
020 $a9786599413551
100 1 $aFAJARDO, T. V. M.
245 $aAnalysis of virome by high-throughput sequencing revealed multiple infection in a single grapevine plant.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 52., 2021. Anais... SBF, 2021. p. 194.$c2021
500 $aEvento online.
520 $aGrapevines (Vitis sp.) can host up to 86 virus species, some of which affect plant vigor, production and fruit quality. In 2019, cv. BRS Bibiana, a hybrid vine showing mild leafroll symptoms, collected in an experimental field in Canoinhas-SC, Brazil, was investigated for viruses.
650 $aVines
650 $aVírus
653 $aGrapevines
653 $aHigh-throughput sequencing
653 $aHTS
653 $aNGS
653 $aVideira
653 $aViroid
653 $aViroma
653 $aVitis sp
700 1 $aNHANI JUNIOR, A.
700 1 $aNICKEL, O.
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Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
22/04/2020 |
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Data da última atualização: |
28/12/2023 |
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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: |
BOURGOIN, C.; BETBEDER, J.; COUTERON, P.; BLANC, L.; DESSARD, H.; OSZWALD, J.; LE ROUX, R.; CORNU, G.; REYMONDIN, L.; FREITAS, L. J. M. de; SIST, P.; LÄDERACH, P.; GOND, V. |
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Afiliação: |
Clément Bourgoin, CIRAD / Univ Montpellier / CIAT; Julie Betbeder, CIRAD / Univ Montpellier / CATIE; Pierre Couteron, UMR AMAP-IRD; Lilian Blanc, CIRAD / Univ Montpellier; Hélène Dessard, CIRAD / Univ Montpellier; Johan Oszwald, Université de Rennes 2; Renan Le Roux, CIRAD / Univ Montpellier; Guillaume Cornu, CIRAD / Univ Montpellier; Louis Reymondin, CIAT; LUCAS JOSE MAZZEI DE FREITAS, CPATU; Plinio Sist, CIRAD / Univ Montpellier; Peter Läderach, CIAT; Valéry Gond, CIRAD / Univ Montpellier. |
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Título: |
UAV-based canopy textures assess changes in forest structure from long-term degradation. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Ecological Indicators, v. 115, 106386, Aug. 2020. |
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DOI: |
https://doi.org/10.1016/j.ecolind.2020.106386 |
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Idioma: |
Inglês |
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Conteúdo: |
Degraded tropical forests dominate agricultural frontiers and their management is becoming an urgent priority. This calls for a better understanding of the different forest cover states and cost-efficient techniques to quantify the impact of degradation on forest structure. Canopy texture analyses based on Very High Spatial Resolution (VHSR) optical imagery provide proxies to assess forest structures but the mechanisms linking them with degradation have rarely been investigated. To address this gap, we used a lightweight Unmanned Aerial Vehicle (UAV) to map 739 ha of degraded forests and acquire both canopy VHSR images and height model. Thirty-three years of degradation history from Landsat archives allowed us to sample 40 plots in undisturbed, logged, over-logged and burned and regrowth forests in tropical forested landscapes (Paragominas, Pará, Brazil). Fourier (FOTO) and lacunarity textures were used to assess forest canopy structure and to build a typology linking degradation history and current states. Texture metrics capture canopy grain, heterogeneity and openness gradients and correlate with forest structure variability (R2 = 0.58). Similar structures share common degradation history and can be discriminated on the basis of canopy texture alone (accuracy = 55%). Over-logging causes a lowering in forest height, which brings homogeneous textures and of finer grain. We identified the major changes in structures due to fire following logging which changes heterogeneous and intermediate grain into coarse textures. Our findings highlight the potential of canopy texture metrics to characterize degraded forests and thus be used as indicators for forest management and degradation mitigation. Inexpensive and agile UAV open promising perspectives at the interface between field inventory and satellite characterization of forest structure using texture metrics. MenosDegraded tropical forests dominate agricultural frontiers and their management is becoming an urgent priority. This calls for a better understanding of the different forest cover states and cost-efficient techniques to quantify the impact of degradation on forest structure. Canopy texture analyses based on Very High Spatial Resolution (VHSR) optical imagery provide proxies to assess forest structures but the mechanisms linking them with degradation have rarely been investigated. To address this gap, we used a lightweight Unmanned Aerial Vehicle (UAV) to map 739 ha of degraded forests and acquire both canopy VHSR images and height model. Thirty-three years of degradation history from Landsat archives allowed us to sample 40 plots in undisturbed, logged, over-logged and burned and regrowth forests in tropical forested landscapes (Paragominas, Pará, Brazil). Fourier (FOTO) and lacunarity textures were used to assess forest canopy structure and to build a typology linking degradation history and current states. Texture metrics capture canopy grain, heterogeneity and openness gradients and correlate with forest structure variability (R2 = 0.58). Similar structures share common degradation history and can be discriminated on the basis of canopy texture alone (accuracy = 55%). Over-logging causes a lowering in forest height, which brings homogeneous textures and of finer grain. We identified the major changes in structures due to fire following logging which changes heterogeneous a... Mostrar Tudo |
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Palavras-Chave: |
Degradação florestal. |
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Thesagro: |
Degradação Ambiental; Floresta Tropical; Sensoriamento Remoto. |
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Thesaurus NAL: |
Remote sensing; Texture; Tropical forests. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02917naa a2200361 a 4500
001 2121789
005 2023-12-28
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.ecolind.2020.106386$2DOI
100 1 $aBOURGOIN, C.
245 $aUAV-based canopy textures assess changes in forest structure from long-term degradation.$h[electronic resource]
260 $c2020
520 $aDegraded tropical forests dominate agricultural frontiers and their management is becoming an urgent priority. This calls for a better understanding of the different forest cover states and cost-efficient techniques to quantify the impact of degradation on forest structure. Canopy texture analyses based on Very High Spatial Resolution (VHSR) optical imagery provide proxies to assess forest structures but the mechanisms linking them with degradation have rarely been investigated. To address this gap, we used a lightweight Unmanned Aerial Vehicle (UAV) to map 739 ha of degraded forests and acquire both canopy VHSR images and height model. Thirty-three years of degradation history from Landsat archives allowed us to sample 40 plots in undisturbed, logged, over-logged and burned and regrowth forests in tropical forested landscapes (Paragominas, Pará, Brazil). Fourier (FOTO) and lacunarity textures were used to assess forest canopy structure and to build a typology linking degradation history and current states. Texture metrics capture canopy grain, heterogeneity and openness gradients and correlate with forest structure variability (R2 = 0.58). Similar structures share common degradation history and can be discriminated on the basis of canopy texture alone (accuracy = 55%). Over-logging causes a lowering in forest height, which brings homogeneous textures and of finer grain. We identified the major changes in structures due to fire following logging which changes heterogeneous and intermediate grain into coarse textures. Our findings highlight the potential of canopy texture metrics to characterize degraded forests and thus be used as indicators for forest management and degradation mitigation. Inexpensive and agile UAV open promising perspectives at the interface between field inventory and satellite characterization of forest structure using texture metrics.
650 $aRemote sensing
650 $aTexture
650 $aTropical forests
650 $aDegradação Ambiental
650 $aFloresta Tropical
650 $aSensoriamento Remoto
653 $aDegradação florestal
700 1 $aBETBEDER, J.
700 1 $aCOUTERON, P.
700 1 $aBLANC, L.
700 1 $aDESSARD, H.
700 1 $aOSZWALD, J.
700 1 $aLE ROUX, R.
700 1 $aCORNU, G.
700 1 $aREYMONDIN, L.
700 1 $aFREITAS, L. J. M. de
700 1 $aSIST, P.
700 1 $aLÄDERACH, P.
700 1 $aGOND, V.
773 $tEcological Indicators$gv. 115, 106386, Aug. 2020.
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