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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
02/12/2020 |
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Data da última atualização: |
02/12/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARVALHO, E. V. de; CIFUENTES-ARENAS, J. C.; JESUS, C. A. S. de; STUCHI, E. S.; LOPES, S. A.; GIRARDI, E. A. |
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Afiliação: |
EVERTON VIEIRA DE CARVALHO; JUAN CAMILO CIFUENTES-ARENAS; CARLOS AUGUSTO SANTOS DE JESUS; EDUARDO SANCHES STUCHI, CNPMF; SILVIO APARECIDO LOPES; EDUARDO AUGUSTO GIRARDI, CNPMF. |
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Título: |
Optimization of sampling and monitoring of vegetative flushing in citrus orchards. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Plos One, May, 2020. |
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ISSN: |
1932-6203 |
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DOI: |
https://doi.org/10.1371/journal.pone.0233014 |
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Idioma: |
Inglês |
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Conteúdo: |
Citrus trees produce flushes throughout the year, but there are no criteria established for a precise shoot monitoring in orchards under tropical climate. Methods for quantification of flush dynamics would be useful for horticultural and pest management studies because different insect vectors feed and reproduce on flushes. We estimated the minimum number and distribution of trees for sampling and determined the flushing pattern over time in ?Valencia Late? orange trees grafted onto ?Swingle? citrumelo rootstock. Shoots within a square frame (0.25 m2) on two sides of the canopy were counted and classified by their phenological stage. The minimum number of samples was estimated using the mean number of shoots and area under the flush shoot dynamics (AUFSD). The temporal and spatial distribution analysis was performed by Taylor?s power law and by multiple correspondence analysis (MCA). Additionally, a shoot maturity index (SMI) based on visual qualitative assessment of flushes is proposed. Considering the mean number of shoots, it was necessary to sample two sides of 16 trees to reach a relative sampling error (Er) of 25%, whereas by the AUFSD, only five trees were necessary to reach an Er of 10%. Flushes were predominantly randomly distributed over time and space. Testing eight transects, sampled trees should be distributed throughout the block, avoiding sampling concentration in a certain area. MCA showed that the west side and the upper sampling positions of trees were more likely to be associated with younger shoots. AUFSD and the evaluation of both sides of the canopy yielded a smaller number of trees to be assessed. The SMI was a reliable metric to estimate the shoot phenology of orange trees, and correlated well (R2 > 70%) with the mean number of shoots within the square frame. Therefore, SMI has the potential to make shoot monitoring in the field more practical. MenosCitrus trees produce flushes throughout the year, but there are no criteria established for a precise shoot monitoring in orchards under tropical climate. Methods for quantification of flush dynamics would be useful for horticultural and pest management studies because different insect vectors feed and reproduce on flushes. We estimated the minimum number and distribution of trees for sampling and determined the flushing pattern over time in ?Valencia Late? orange trees grafted onto ?Swingle? citrumelo rootstock. Shoots within a square frame (0.25 m2) on two sides of the canopy were counted and classified by their phenological stage. The minimum number of samples was estimated using the mean number of shoots and area under the flush shoot dynamics (AUFSD). The temporal and spatial distribution analysis was performed by Taylor?s power law and by multiple correspondence analysis (MCA). Additionally, a shoot maturity index (SMI) based on visual qualitative assessment of flushes is proposed. Considering the mean number of shoots, it was necessary to sample two sides of 16 trees to reach a relative sampling error (Er) of 25%, whereas by the AUFSD, only five trees were necessary to reach an Er of 10%. Flushes were predominantly randomly distributed over time and space. Testing eight transects, sampled trees should be distributed throughout the block, avoiding sampling concentration in a certain area. MCA showed that the west side and the upper sampling positions of trees were more... Mostrar Tudo |
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Thesagro: |
Fruta Cítrica. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218604/1/journal.pone.0233014.pdf
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Marc: |
LEADER 02544naa a2200217 a 4500
001 2127472
005 2020-12-02
008 2020 bl uuuu u00u1 u #d
022 $a1932-6203
024 7 $ahttps://doi.org/10.1371/journal.pone.0233014$2DOI
100 1 $aCARVALHO, E. V. de
245 $aOptimization of sampling and monitoring of vegetative flushing in citrus orchards.$h[electronic resource]
260 $c2020
520 $aCitrus trees produce flushes throughout the year, but there are no criteria established for a precise shoot monitoring in orchards under tropical climate. Methods for quantification of flush dynamics would be useful for horticultural and pest management studies because different insect vectors feed and reproduce on flushes. We estimated the minimum number and distribution of trees for sampling and determined the flushing pattern over time in ?Valencia Late? orange trees grafted onto ?Swingle? citrumelo rootstock. Shoots within a square frame (0.25 m2) on two sides of the canopy were counted and classified by their phenological stage. The minimum number of samples was estimated using the mean number of shoots and area under the flush shoot dynamics (AUFSD). The temporal and spatial distribution analysis was performed by Taylor?s power law and by multiple correspondence analysis (MCA). Additionally, a shoot maturity index (SMI) based on visual qualitative assessment of flushes is proposed. Considering the mean number of shoots, it was necessary to sample two sides of 16 trees to reach a relative sampling error (Er) of 25%, whereas by the AUFSD, only five trees were necessary to reach an Er of 10%. Flushes were predominantly randomly distributed over time and space. Testing eight transects, sampled trees should be distributed throughout the block, avoiding sampling concentration in a certain area. MCA showed that the west side and the upper sampling positions of trees were more likely to be associated with younger shoots. AUFSD and the evaluation of both sides of the canopy yielded a smaller number of trees to be assessed. The SMI was a reliable metric to estimate the shoot phenology of orange trees, and correlated well (R2 > 70%) with the mean number of shoots within the square frame. Therefore, SMI has the potential to make shoot monitoring in the field more practical.
650 $aFruta Cítrica
700 1 $aCIFUENTES-ARENAS, J. C.
700 1 $aJESUS, C. A. S. de
700 1 $aSTUCHI, E. S.
700 1 $aLOPES, S. A.
700 1 $aGIRARDI, E. A.
773 $tPlos One, May, 2020.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 12 | |
| 1. |  | TOKARNIA, C. H.; LANGENEGGER, J.; LANGENEGGER, C. H.; CARVALHO, E. V. de. Botulismo em bovinos do Piauí, Brasil. Pesquisa Agropecuária Brasileira, Rio de Janeiro, v. 5, p.465-472, 1970. (Veterinária, 3). Título em inglês: Botulism in cattle in the State of Piauí, Brazil.
A partir do v. 3(1968) é constituída de duas partes: Série Agronomia e Série Veterinária, publicadas também separadamente.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 2. | | MACHADO, I. E. S.; SANTOS, M. M.; GIONGO, M.; CARVALHO, E. V. de; GANASSOLI NETO, E. Modelos para estimativa de variáveis florestais com a utilização de imagens multiespectrais. Pesquisa Florestal Brasileira, Colombo, v. 37, n. 90, p. 171-181, abr./jun. 2017.| Biblioteca(s): Embrapa Florestas. |
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| 4. | | CARVALHO, E. V. de; GIRARDI, E. A.; STUCHI, E. S.; LOPES, S. A.; SOARES FILHO, W. dos S. Avaliação de porta-enxertos híbridos de citros frente ao Huanglongbing. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 10., 2016: Cruz das Almas, BA. Traduzindo ciência para o mundo : resumos. Brasília, DF : Embrapa, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 8. | | STRUZZIATO, R.; RAIOL JÚNIOR, L. L.; CARVALHO, E. V. de; SOARES FILHO, W. dos S.; GIRARDI, E. A. Reação de híbridos intergenéricos de citros a 'Candidatus Liberibacter asiaticus' e ao inseto vetor Diaphorina citri, In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 14., 2020. Ciência em tempos de crise: resumos. Cruz das Almas, BA: Embrapa Mandioca e Fruticultura, 2020. 112 p. il.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 9. | | CARVALHO, E. V. de; COELHO, M. C. B.; SOUZA JÚNIOR, M. R. de; GIONGO, M.; SANTOS, M. M.; GANASSOLI NETO, E. Evolução do setor florestal no Tocantins. Revista de Política Agrícola, ano 28, n. 1, p. 45-54, Jan./Fev./Mar. 2019. Título em inglês: Evolution of the forest sector in the state of Tocantins, Brazil.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 12 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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