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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
19/04/1999 |
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Data da última atualização: |
19/04/1999 |
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Autoria: |
MARTY, G. M.; PENNOCK, W. |
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Afiliação: |
Departamento de Agronomia y Horticultura, Estacion Experimental Agricola, Universidad de Puerto Rico. |
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Título: |
Practicas agronomicas para el cultivo comerial de la acerola en Puerto Rico |
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Ano de publicação: |
1965 |
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Fonte/Imprenta: |
Revista de Agricultura de Puerto Rico, v.52, p.107-111, 1965 |
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Idioma: |
Espanhol |
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Conteúdo: |
DEsde que Asenjo y Guzman informaron en 1946 sobre el alto contenido de vitamina C de la acerola, (1)*, se inicio la siembra comercial de esta fruta, la cual ha seguido en aumento. Actualmente hay siembras extensas de acerola en Puerto Rico, Florida y Hawai. Hay mas de 500 cuerdas dedicadas a su cultivo en Puerto Rico y hay una fabrica para elaborar la fruta que ha estado operando por varios anos. Varias firmas comerciales se han interesado en esta cosecha. Sabemos de otra firma que ya ha iniciado la elaboracion de esta fruta en pequena escala. Debido al interes de muchos agricultores sobre este cultivo como una nueva empresa, es nuestro proposito aountar algunas de las praticas que son deseables para el buen manejo de un huerto comercial. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01135naa a2200133 a 4500
001 1648114
005 1999-04-19
008 1965 bl --- 0-- u #d
100 1 $aMARTY, G. M.
245 $aPracticas agronomicas para el cultivo comerial de la acerola en Puerto Rico
260 $c1965
520 $aDEsde que Asenjo y Guzman informaron en 1946 sobre el alto contenido de vitamina C de la acerola, (1)*, se inicio la siembra comercial de esta fruta, la cual ha seguido en aumento. Actualmente hay siembras extensas de acerola en Puerto Rico, Florida y Hawai. Hay mas de 500 cuerdas dedicadas a su cultivo en Puerto Rico y hay una fabrica para elaborar la fruta que ha estado operando por varios anos. Varias firmas comerciales se han interesado en esta cosecha. Sabemos de otra firma que ya ha iniciado la elaboracion de esta fruta en pequena escala. Debido al interes de muchos agricultores sobre este cultivo como una nueva empresa, es nuestro proposito aountar algunas de las praticas que son deseables para el buen manejo de un huerto comercial.
700 1 $aPENNOCK, W.
773 $tRevista de Agricultura de Puerto Rico$gv.52, p.107-111, 1965
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
03/01/2024 |
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Data da última atualização: |
03/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SANTOS, L. M. dos; FERRAZ, G. A. e S.; CARVALHO, M. A. de F.; TEODORO, S. A.; CAMPOS, A. A. V.; MENICUCCI NETO, P. |
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Afiliação: |
LUANA MENDES DOS SANTOS, - UNIVERSIDADE FEDERAL DE LAVRAS; GABRIEL ARAÚJO E SILVA FERRAZ, UNIVERSIDADE FEDERAL DE LAVRAS; MILENE ALVES DE FIGUEIREDO CARVALHO, CNPCa; SABRINA APARECIDA TEODORO, UNIVERSIDADE FEDERAL DE LAVRAS; ALISSON ANDRÉ VICENTE CAMPOS, UNIVERSIDADE FEDERAL DE LAVRAS; PEDRO MENICUCCI NETO, UNIVERSIDADE FEDERAL DE LAVRAS. |
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Título: |
Use of RPA images in the mapping of the chlorophyll index of coffee plants. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Sustainability , v. 14, n. 20, 13118, 2022. |
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Páginas: |
16 p. |
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DOI: |
https://doi.org/10.3390/su142013118 |
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Idioma: |
Inglês |
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Conteúdo: |
Coffee trading is an important source of income for the Brazilian commercial balance. Chlorophyll (Chl) are pigments responsible for converting radiation into energy; these pigments are closely related to the photosynthetic efficiency of plants, and the evaluation of the nutritional status of the coffee tree. The inversion method can be used for estimating the canopy chlorophyll content (Chl(canopy)) using the leaf chlorophyll content (Chl(leaf)) and the leaf area index (LAI). The application of vegetation indices (VIs) in high spatial resolution images obtained from remotely piloted aircraft (RPA) can assist in the characterization of Chl(canopy) in addition to providing vital and fast information for monitoring crops and aiding decision-making. This study aimed to identify which VIs adequately explain the Chl and evaluate the relationships between the VIs obtained from remotely piloted aircraft (RPA) images and the Chl(leaf) and Chl(canopy) in coffee plants during the wet and dry seasons. The experiment was conducted on a Coffea arabica L. plantation in Lavras, Minas Gerais, Brazil. Images were collected on 26 November 2019 (wet), 11 August 2020 (dry), and 26 August 2021 (dry) by a multispectral camera embedded in a quadcopter. Plant height (H), crow diameter (D), and Chl(leaf) (a, b and total) data were collected in the field by a metre ruler (H and D) and sensor (Chl(leaf)). The LAI was calculated based on H and D. The Chl(canopy) (a, b, and total) was calculated based on Chl(leaf) and LAI. The image processing was performed in Pix4D software, and postprocessing and calculation of the 21 VIs were performed in QGIS. Statistical analyses (descriptive, statistical tests, Pearson correlation, residuals calculation, and linear regression) were performed using the software R. The VIs from the RPA that best correlates to Chl(canopy) in the wet season were the Modified Chlorophyll Absorption Ratio Index 2 (MCARI2(RPA)), Modified Simple Ratio (MSRRPA) and Simple Ratio (SRRPA). These VIs had high sensitivity and, therefore, were more affected by chlorophyll variability. For the two dry season studied days, there were no patterns in the relationships between Chl(leaf), Chl(canopy), and the VIs. It was possible to use the Chl inversion method for the coffee during the wet season. MenosCoffee trading is an important source of income for the Brazilian commercial balance. Chlorophyll (Chl) are pigments responsible for converting radiation into energy; these pigments are closely related to the photosynthetic efficiency of plants, and the evaluation of the nutritional status of the coffee tree. The inversion method can be used for estimating the canopy chlorophyll content (Chl(canopy)) using the leaf chlorophyll content (Chl(leaf)) and the leaf area index (LAI). The application of vegetation indices (VIs) in high spatial resolution images obtained from remotely piloted aircraft (RPA) can assist in the characterization of Chl(canopy) in addition to providing vital and fast information for monitoring crops and aiding decision-making. This study aimed to identify which VIs adequately explain the Chl and evaluate the relationships between the VIs obtained from remotely piloted aircraft (RPA) images and the Chl(leaf) and Chl(canopy) in coffee plants during the wet and dry seasons. The experiment was conducted on a Coffea arabica L. plantation in Lavras, Minas Gerais, Brazil. Images were collected on 26 November 2019 (wet), 11 August 2020 (dry), and 26 August 2021 (dry) by a multispectral camera embedded in a quadcopter. Plant height (H), crow diameter (D), and Chl(leaf) (a, b and total) data were collected in the field by a metre ruler (H and D) and sensor (Chl(leaf)). The LAI was calculated based on H and D. The Chl(canopy) (a, b, and total) was calculated based o... Mostrar Tudo |
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Thesagro: |
Coffea Arábica. |
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Thesaurus NAL: |
Chlorophyll; Radiation hybrid mapping. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160422/1/Use-of-RPA-Images-in-the-Mapping.pdf
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Marc: |
LEADER 03032naa a2200241 a 4500
001 2160422
005 2024-01-03
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/su142013118$2DOI
100 1 $aSANTOS, L. M. dos
245 $aUse of RPA images in the mapping of the chlorophyll index of coffee plants.$h[electronic resource]
260 $c2022
300 $a16 p.
520 $aCoffee trading is an important source of income for the Brazilian commercial balance. Chlorophyll (Chl) are pigments responsible for converting radiation into energy; these pigments are closely related to the photosynthetic efficiency of plants, and the evaluation of the nutritional status of the coffee tree. The inversion method can be used for estimating the canopy chlorophyll content (Chl(canopy)) using the leaf chlorophyll content (Chl(leaf)) and the leaf area index (LAI). The application of vegetation indices (VIs) in high spatial resolution images obtained from remotely piloted aircraft (RPA) can assist in the characterization of Chl(canopy) in addition to providing vital and fast information for monitoring crops and aiding decision-making. This study aimed to identify which VIs adequately explain the Chl and evaluate the relationships between the VIs obtained from remotely piloted aircraft (RPA) images and the Chl(leaf) and Chl(canopy) in coffee plants during the wet and dry seasons. The experiment was conducted on a Coffea arabica L. plantation in Lavras, Minas Gerais, Brazil. Images were collected on 26 November 2019 (wet), 11 August 2020 (dry), and 26 August 2021 (dry) by a multispectral camera embedded in a quadcopter. Plant height (H), crow diameter (D), and Chl(leaf) (a, b and total) data were collected in the field by a metre ruler (H and D) and sensor (Chl(leaf)). The LAI was calculated based on H and D. The Chl(canopy) (a, b, and total) was calculated based on Chl(leaf) and LAI. The image processing was performed in Pix4D software, and postprocessing and calculation of the 21 VIs were performed in QGIS. Statistical analyses (descriptive, statistical tests, Pearson correlation, residuals calculation, and linear regression) were performed using the software R. The VIs from the RPA that best correlates to Chl(canopy) in the wet season were the Modified Chlorophyll Absorption Ratio Index 2 (MCARI2(RPA)), Modified Simple Ratio (MSRRPA) and Simple Ratio (SRRPA). These VIs had high sensitivity and, therefore, were more affected by chlorophyll variability. For the two dry season studied days, there were no patterns in the relationships between Chl(leaf), Chl(canopy), and the VIs. It was possible to use the Chl inversion method for the coffee during the wet season.
650 $aChlorophyll
650 $aRadiation hybrid mapping
650 $aCoffea Arábica
700 1 $aFERRAZ, G. A. e S.
700 1 $aCARVALHO, M. A. de F.
700 1 $aTEODORO, S. A.
700 1 $aCAMPOS, A. A. V.
700 1 $aMENICUCCI NETO, P.
773 $tSustainability$gv. 14, n. 20, 13118, 2022.
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Embrapa Café (CNPCa) |
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