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Registro Completo |
Biblioteca(s): |
Embrapa Café. |
Data corrente: |
03/01/2024 |
Data da última atualização: |
03/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
Use of RPA images in the mapping of the chlorophyll index of coffee plants. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Sustainability , v. 14, n. 20, 13118, 2022. |
Páginas: |
16 p. |
DOI: |
https://doi.org/10.3390/su142013118 |
Idioma: |
Inglês |
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 |
Thesagro: |
Coffea Arábica. |
Thesaurus Nal: |
Chlorophyll; Radiation hybrid mapping. |
Categoria do assunto: |
-- |
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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Registro original: |
Embrapa Café (CNPCa) |
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Biblioteca(s): |
Embrapa Acre. |
Data corrente: |
10/07/1998 |
Data da última atualização: |
07/03/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - B |
Autoria: |
RITZINGER, C. H. S. P.; McSORLEY, R.; GALLAHER, R. N. |
Afiliação: |
CECÍLIA HELENA S. PRATA RITZINGER, CPAF-AC; R. MCSORLEY, University of Florida; R. N. GALLAHER, University of Florida. |
Título: |
Effect of organic amendment placement and inoculum density of Meloidogyne incognita on Okra seedlings. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
Soil and Crop Sciences Society of Florida Proceedings, v. 56, p. 28-31, Sept. 1997. |
Idioma: |
Inglês |
Conteúdo: |
In a greenhouse test, three treatments involving yard-waste compost amendment (applied to the soil surface, mixed with the soil, or no amendment were evaluated at three inoculum densities of Meloidogyne incognita race 1 (0,025, or 1000 juveniles pot). Plants responses were evaluated on the highly suscetible 'Clemson Spineless' okra (Hibiscus esculentus) during spring of 1994. There was a significant interaction (P< 0,05) between organic amendment placement and inoculum density for egg-mass rating, but not for galls, plant height, or top and root dry weights. Egg-mass rating was not affected by placement of the amendment on the surface or incorporation, but was significantly higher (P< 0,05) at the 1000 inoculum level when no organic amendment was used. Effects of inoculum density were significant(P< 0,05) for plant height, dry weight, and gall rating, and in some cases for shoot and root weights. Regardless of the inoculum concentration, the shortest plant height and lowest weights of shoots and roots were observed when the amendment was mixed with soil. Gall rating was no affected by organic amendment placement, but was affected by inoculum concentration, showing higher levels at the highest nematode density. |
Palavras-Chave: |
Biofertilizantes; Controle de pragas; Elaboración de compost; Métodos de control; Nemátodo parasitario de las plantas; Okra cv Clemson Spineless. |
Thesagro: |
Adubação; Compostagem; Hibiscus Esculentus; Meloidogyne Incognita; Nematóide; Parasito de Planta; Quiabo. |
Thesaurus NAL: |
Biofertilizers; Composting; Control methods; Plant parasitic nematodes. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/211507/1/1393.pdf
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Marc: |
LEADER 02322naa a2200349 a 4500 001 1492666 005 2022-03-07 008 1997 bl uuuu u00u1 u #d 100 1 $aRITZINGER, C. H. S. P. 245 $aEffect of organic amendment placement and inoculum density of Meloidogyne incognita on Okra seedlings.$h[electronic resource] 260 $c1997 520 $aIn a greenhouse test, three treatments involving yard-waste compost amendment (applied to the soil surface, mixed with the soil, or no amendment were evaluated at three inoculum densities of Meloidogyne incognita race 1 (0,025, or 1000 juveniles pot). Plants responses were evaluated on the highly suscetible 'Clemson Spineless' okra (Hibiscus esculentus) during spring of 1994. There was a significant interaction (P< 0,05) between organic amendment placement and inoculum density for egg-mass rating, but not for galls, plant height, or top and root dry weights. Egg-mass rating was not affected by placement of the amendment on the surface or incorporation, but was significantly higher (P< 0,05) at the 1000 inoculum level when no organic amendment was used. Effects of inoculum density were significant(P< 0,05) for plant height, dry weight, and gall rating, and in some cases for shoot and root weights. Regardless of the inoculum concentration, the shortest plant height and lowest weights of shoots and roots were observed when the amendment was mixed with soil. Gall rating was no affected by organic amendment placement, but was affected by inoculum concentration, showing higher levels at the highest nematode density. 650 $aBiofertilizers 650 $aComposting 650 $aControl methods 650 $aPlant parasitic nematodes 650 $aAdubação 650 $aCompostagem 650 $aHibiscus Esculentus 650 $aMeloidogyne Incognita 650 $aNematóide 650 $aParasito de Planta 650 $aQuiabo 653 $aBiofertilizantes 653 $aControle de pragas 653 $aElaboración de compost 653 $aMétodos de control 653 $aNemátodo parasitario de las plantas 653 $aOkra cv Clemson Spineless 700 1 $aMcSORLEY, R. 700 1 $aGALLAHER, R. N. 773 $tSoil and Crop Sciences Society of Florida Proceedings$gv. 56, p. 28-31, Sept. 1997.
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