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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
28/05/2013 |
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Data da última atualização: |
19/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WENDLING, I.; BRONDANI, G. E.; BIASSIO, A. de; DUTRA, L. F. |
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Afiliação: |
IVAR WENDLING, CNPF; GILVANO EBLING BRONDANI, UFMT; ADRIANA DE BIASSIO, UFPR; LEONARDO FERREIRA DUTRA, CPACT. |
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Título: |
Vegetative propagation of adult Ilex paraguariensis trees through epicormic shoots. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Acta Scientiarum. Agronomy, Maringá, v. 35, n. 1, p. 117-125, jan./mar. 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
The difficulty and length of time required for seed germination of mate (Ilex paraguariensis), as well as the pressing need for clonal multiplication of improved genetic material, has resulted in several studies related to vegetative propagation in an effort to obtain rooted cuttings more quickly and with better genetic quality. Currently, the biggest challenge is propagating and rooting adult plants selected in the field without requiring clear cutting to generate conditions for the basal induction of juvenile sprouts. Therefore, the objective of this study was to develop a method to rescue adult mate plants through the generation of epicormic sprouts. To accomplish this, tree branches of mate that were at least 19 years of age were collected and packed in trays with sand for sprouting. Different solutions containing a mixture of sucrose and indole-3-butyric acid (IBA) were sprayed in branches at 29, 22, 15, 8 and 1 day(s) before collection. We conclude that the vegetative propagation of adult mate trees is technically efficient and requires no treatment with sucrose or IBA and results in the formation of plants suitable for planting or serving as mother plants for continuous multiplication via cloning. |
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Palavras-Chave: |
Erva-mate; Estaquia; Indução de brotação; Rizogênese. |
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Thesagro: |
Clonagem; Ilex Paraguariensis; Propagação Vegetativa. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/83437/1/ivar-ASA-Vegetative.pdf
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Marc: |
LEADER 01942naa a2200241 a 4500
001 1958970
005 2015-02-19
008 2013 bl uuuu u00u1 u #d
100 1 $aWENDLING, I.
245 $aVegetative propagation of adult Ilex paraguariensis trees through epicormic shoots.$h[electronic resource]
260 $c2013
520 $aThe difficulty and length of time required for seed germination of mate (Ilex paraguariensis), as well as the pressing need for clonal multiplication of improved genetic material, has resulted in several studies related to vegetative propagation in an effort to obtain rooted cuttings more quickly and with better genetic quality. Currently, the biggest challenge is propagating and rooting adult plants selected in the field without requiring clear cutting to generate conditions for the basal induction of juvenile sprouts. Therefore, the objective of this study was to develop a method to rescue adult mate plants through the generation of epicormic sprouts. To accomplish this, tree branches of mate that were at least 19 years of age were collected and packed in trays with sand for sprouting. Different solutions containing a mixture of sucrose and indole-3-butyric acid (IBA) were sprayed in branches at 29, 22, 15, 8 and 1 day(s) before collection. We conclude that the vegetative propagation of adult mate trees is technically efficient and requires no treatment with sucrose or IBA and results in the formation of plants suitable for planting or serving as mother plants for continuous multiplication via cloning.
650 $aClonagem
650 $aIlex Paraguariensis
650 $aPropagação Vegetativa
653 $aErva-mate
653 $aEstaquia
653 $aIndução de brotação
653 $aRizogênese
700 1 $aBRONDANI, G. E.
700 1 $aBIASSIO, A. de
700 1 $aDUTRA, L. F.
773 $tActa Scientiarum. Agronomy, Maringá$gv. 35, n. 1, p. 117-125, jan./mar. 2013.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
23/05/2022 |
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Data da última atualização: |
23/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
SANTOS, L. M. dos; FERRAZ, G. A. e S.; MARIN, D. B.; CARVALHO, M. A. de F.; DIAS, J. E. L.; ALECRIM, A. de O.; SILVA, M. de L. O. e. |
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Afiliação: |
LUANA MENDES DOS SANTOS, UFLA; GABRIEL ARAÚJO E SILVA FERRAZ, UFLA; DIEGO BEDIN MARIN, UFLA; MILENE ALVES DE FIGUEIREDO CARVALHO, CNPCa; JESSICA ELLEN LIMA DIAS, HUNGARIAN UNIVERSITY OF AGRICULTURE AND LIFE SCIENCES; ADEMILSON DE OLIVEIRA ALECRIM, UFLA; MIRIAN DE LOURDES OLIVEIRA E SILVA, UFLA. |
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Título: |
Vegetation indices applied to suborbital multispectral images of healthy coffee and coffee infested with coffee leaf miner. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
AgriEngineering, v. 4, n. 1, p. 311-319, Mar. 2022. |
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Idioma: |
Inglês |
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Conteúdo: |
The coffee leaf miner (Leucoptera coffeella) is a primary pest for coffee plants. The attack of this pest reduces the photosynthetic area of the leaves due to necrosis, causing premature leaf falling, decreasing the yield and the lifespan of the plant. Therefore, this study aims to analyze vegetation indices (VI) from images of healthy coffee leaves and those infested by coffee leaf miner, obtained using a multispectral camera, mainly to differentiate and detect infested areas. The study was conducted in two distinct locations: At a farm, where the camera was coupled to a remotely piloted aircraft (RPA) flying at a 3 m altitude from the soil surface; and the second location, in a greenhouse, where the images were obtained manually at a 0.5 m altitude from the support of the plant vessels, in which only healthy plants were located. For the image processing, arithmetic operations with the spectral bands were calculated using the ?Raster Calculator? obtaining the indices NormNIR, Normalized Difference Vegetation Index (NDVI), Green-Red NDVI (GRNDVI), and Green NDVI (GNDVI), the values of which on average for healthy leaves were: 0.66; 0.64; 0.32, and 0.55 and for infested leaves: 0.53; 0.41; 0.06, and 0.37 respectively. The analysis concluded that healthy leaves presented higher values of VIs when compared to infested leaves. The index GRNDVI was the one that better differentiated infested leaves from the healthy ones. |
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Palavras-Chave: |
Agricultura digital. |
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Thesagro: |
Agricultura de Precisão; Coffea Arábica; Sensoriamento Remoto. |
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Thesaurus NAL: |
Precision agriculture; Remote sensing; Unmanned aerial vehicles. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143380/1/Vegetation-Indices-Applied-2022.pdf
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Marc: |
LEADER 02324naa a2200277 a 4500
001 2143380
005 2022-05-23
008 2022 bl uuuu u00u1 u #d
100 1 $aSANTOS, L. M. dos
245 $aVegetation indices applied to suborbital multispectral images of healthy coffee and coffee infested with coffee leaf miner.$h[electronic resource]
260 $c2022
520 $aThe coffee leaf miner (Leucoptera coffeella) is a primary pest for coffee plants. The attack of this pest reduces the photosynthetic area of the leaves due to necrosis, causing premature leaf falling, decreasing the yield and the lifespan of the plant. Therefore, this study aims to analyze vegetation indices (VI) from images of healthy coffee leaves and those infested by coffee leaf miner, obtained using a multispectral camera, mainly to differentiate and detect infested areas. The study was conducted in two distinct locations: At a farm, where the camera was coupled to a remotely piloted aircraft (RPA) flying at a 3 m altitude from the soil surface; and the second location, in a greenhouse, where the images were obtained manually at a 0.5 m altitude from the support of the plant vessels, in which only healthy plants were located. For the image processing, arithmetic operations with the spectral bands were calculated using the ?Raster Calculator? obtaining the indices NormNIR, Normalized Difference Vegetation Index (NDVI), Green-Red NDVI (GRNDVI), and Green NDVI (GNDVI), the values of which on average for healthy leaves were: 0.66; 0.64; 0.32, and 0.55 and for infested leaves: 0.53; 0.41; 0.06, and 0.37 respectively. The analysis concluded that healthy leaves presented higher values of VIs when compared to infested leaves. The index GRNDVI was the one that better differentiated infested leaves from the healthy ones.
650 $aPrecision agriculture
650 $aRemote sensing
650 $aUnmanned aerial vehicles
650 $aAgricultura de Precisão
650 $aCoffea Arábica
650 $aSensoriamento Remoto
653 $aAgricultura digital
700 1 $aFERRAZ, G. A. e S.
700 1 $aMARIN, D. B.
700 1 $aCARVALHO, M. A. de F.
700 1 $aDIAS, J. E. L.
700 1 $aALECRIM, A. de O.
700 1 $aSILVA, M. de L. O. e
773 $tAgriEngineering$gv. 4, n. 1, p. 311-319, Mar. 2022.
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Embrapa Café (CNPCa) |
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