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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
29/11/2019 |
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Data da última atualização: |
17/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FUJIYAMA, B. S.; SILVA, A. R. B. e; SILVA JÚNIOR, M. L. da; CARDOSO, N. R. P.; FONSECA, A. B. da; VIANA, R. G.; SAMPAIO, L. S. |
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Afiliação: |
Bruna Sayuri Fujiyama, UFRA; ALYSSON ROBERTO BAIZI E SILVA, CPATU; Mário Lopes da Silva Júnior, UFRA; Nicole Raquel Pinto Cardoso, UFRA; Adrianne Braga da Fonseca, UFRA; Rafael Gomes Viana, UFRA; Leila Sobral Sampaio, UFRA. |
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Título: |
Boron fertilization enhances photosynthesis and water use efficiency in soybean at vegetative growth stage. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v. 42, n. 19, p. 2498-2506, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Influence of boron (B) on photosynthesis and water use has not sufficiently been evaluated in soybean despite its worldwide importance as a crop. The objective of this work was to evaluate the effects of B application on photosynthesis and water use in soybean at vegetative growth stage. A pot experiment was carried out in a greenhouse. Soybean [Glycine max (L.) Merrill cv. M8644 IPRO] was grown in a clayey Oxisol previously fertilized with 4 B rates (0, 1.5, 3.0, and 6.0mg dm3). Net photosynthesis rate (Pn), intercellular CO2 concentration (Ci), transpiration rate (E), stomatal conductance (gs) were measured in the second trifoliate leaf of plants at the V4 growth stage. Instantaneous water use efficiency (WUEis ¼ Pn/E) and intrinsic water use efficiency (WUEic ¼ Pn/gs) were calculated. B application to soil increased all these variables. The most consistent increases were in Pn, WUEis, and WUEic. The critical level of hot water extractable B in soil that maximized photosynthesis and optimized water use by soybean at vegetative growth stage was calculated to be 0.38mg dm3. |
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Palavras-Chave: |
Fertilização. |
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Thesagro: |
Boro; Glycine Max; Soja; Solo Argiloso. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01842naa a2200253 a 4500
001 2115598
005 2020-04-17
008 2019 bl uuuu u00u1 u #d
100 1 $aFUJIYAMA, B. S.
245 $aBoron fertilization enhances photosynthesis and water use efficiency in soybean at vegetative growth stage.$h[electronic resource]
260 $c2019
520 $aInfluence of boron (B) on photosynthesis and water use has not sufficiently been evaluated in soybean despite its worldwide importance as a crop. The objective of this work was to evaluate the effects of B application on photosynthesis and water use in soybean at vegetative growth stage. A pot experiment was carried out in a greenhouse. Soybean [Glycine max (L.) Merrill cv. M8644 IPRO] was grown in a clayey Oxisol previously fertilized with 4 B rates (0, 1.5, 3.0, and 6.0mg dm3). Net photosynthesis rate (Pn), intercellular CO2 concentration (Ci), transpiration rate (E), stomatal conductance (gs) were measured in the second trifoliate leaf of plants at the V4 growth stage. Instantaneous water use efficiency (WUEis ¼ Pn/E) and intrinsic water use efficiency (WUEic ¼ Pn/gs) were calculated. B application to soil increased all these variables. The most consistent increases were in Pn, WUEis, and WUEic. The critical level of hot water extractable B in soil that maximized photosynthesis and optimized water use by soybean at vegetative growth stage was calculated to be 0.38mg dm3.
650 $aBoro
650 $aGlycine Max
650 $aSoja
650 $aSolo Argiloso
653 $aFertilização
700 1 $aSILVA, A. R. B. e
700 1 $aSILVA JÚNIOR, M. L. da
700 1 $aCARDOSO, N. R. P.
700 1 $aFONSECA, A. B. da
700 1 $aVIANA, R. G.
700 1 $aSAMPAIO, L. S.
773 $tJournal of Plant Nutrition$gv. 42, n. 19, p. 2498-2506, 2019.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Classificação |
Cutter |
Registro |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
07/06/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
LIMA, G. G. de; CHEE, B. S.; MORITZ, V. F.; CORTESE, Y. J.; MAGALHAES, W. L. E.; DEVINE, D. M.; NUGENT, M. J. D. |
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Afiliação: |
Gabriel Goetten de Lima, Materials Research Institute, Athlone Institute of Technology; Bor Shin Chee, Materials Research Institute, Athlone Institute of Technology; Vicente Froés Moritz, Materials Research Institute, Athlone Institute of Technology; Yvonne J Cortese, Materials Research Institute, Athlone Institute of Technology; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Declan M Devine, Materials Research Institute, Athlone Institute of Technology; Michael J D Nugent, Materials Research Institute, Athlone Institute of Technology. |
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Título: |
The production of a novel poly(vinyl alcohol) hydrogel cryogenic spheres for immediate release using a droplet system. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Biomedical Physics & Engineering Express, v. 5, n. 4, 045017, Jul. 2019. 13 p. |
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DOI: |
10.1088/2057-1976/ab2547 |
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Idioma: |
Inglês |
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Conteúdo: |
Although freeze-thaw mechanism for producing crosslinked hydrogels is relatively easy and simple, it lacks sufficient integrity and support leading to modifications on its three-dimensional polymeric network arrangement during water removal?drying. Therefore, a strengthening method for obtaining cryogenic spheres of polyvinyl alcohol hydrogels is purposed by dispensing it as liquid droplets into a low temperature solution followed by a modification on its freeze-thaw cycles to confer a good geometry without aggregation. Various materials were incorporated into this hydrogel structure, including poly(acrylic acid) to impart pH sensitivity; hydroxyapatite to improve biocompatibility; and ciprofloxacin as an antimicrobial agent relevant for the treatment of osteomyelitis. The overall network presented a porous structure with a fibrous-like pattern which varied in size and volume, with presence of Ca and P when hydroxyapatite is incorporated. These materials varied the crystalline melting point of the poly(vinyl alcohol) and a linear pHsensitivity function was obtained by the addition of the materials. These hydrogels were found to release ciprofloxacin within 60 min and were able to dissolve at the same time intervals. Therefore, the hydrogel synthesised in this work can be used as an immediate release drug delivery mechanism for the in situ delivery of active pharmaceutical such as ciprofloxacin for a treatment of osteomyelitis. |
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Palavras-Chave: |
Álcool polivinílico; Immediate releas; Liberação de fármaco por via oral; Oral drug delivery; PH-sensitivity; Produto madeireiro. |
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Thesaurus NAL: |
Polyvinyl alcohol. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02387naa a2200289 a 4500
001 2109732
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1088/2057-1976/ab2547$2DOI
100 1 $aLIMA, G. G. de
245 $aThe production of a novel poly(vinyl alcohol) hydrogel cryogenic spheres for immediate release using a droplet system.$h[electronic resource]
260 $c2019
520 $aAlthough freeze-thaw mechanism for producing crosslinked hydrogels is relatively easy and simple, it lacks sufficient integrity and support leading to modifications on its three-dimensional polymeric network arrangement during water removal?drying. Therefore, a strengthening method for obtaining cryogenic spheres of polyvinyl alcohol hydrogels is purposed by dispensing it as liquid droplets into a low temperature solution followed by a modification on its freeze-thaw cycles to confer a good geometry without aggregation. Various materials were incorporated into this hydrogel structure, including poly(acrylic acid) to impart pH sensitivity; hydroxyapatite to improve biocompatibility; and ciprofloxacin as an antimicrobial agent relevant for the treatment of osteomyelitis. The overall network presented a porous structure with a fibrous-like pattern which varied in size and volume, with presence of Ca and P when hydroxyapatite is incorporated. These materials varied the crystalline melting point of the poly(vinyl alcohol) and a linear pHsensitivity function was obtained by the addition of the materials. These hydrogels were found to release ciprofloxacin within 60 min and were able to dissolve at the same time intervals. Therefore, the hydrogel synthesised in this work can be used as an immediate release drug delivery mechanism for the in situ delivery of active pharmaceutical such as ciprofloxacin for a treatment of osteomyelitis.
650 $aPolyvinyl alcohol
653 $aÁlcool polivinílico
653 $aImmediate releas
653 $aLiberação de fármaco por via oral
653 $aOral drug delivery
653 $aPH-sensitivity
653 $aProduto madeireiro
700 1 $aCHEE, B. S.
700 1 $aMORITZ, V. F.
700 1 $aCORTESE, Y. J.
700 1 $aMAGALHAES, W. L. E.
700 1 $aDEVINE, D. M.
700 1 $aNUGENT, M. J. D.
773 $tBiomedical Physics & Engineering Express$gv. 5, n. 4, 045017, Jul. 2019. 13 p.
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