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Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
21/08/2003 |
Data da última atualização: |
24/02/2010 |
Autoria: |
CARVALHO, A. T.; CARVALHO, A. M.; SILVA, M. L. P.; DEMARQUETTE, N. R.; ASSIS, O. B. G. |
Afiliação: |
Embrapa Instrumentação Agropecuária, São Carlos, SP. |
Título: |
Evaluation of organosilicon combined deposition for hydrophobic coatings of beans. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
In: MATTOSO, L. H. C.; LEÃO, A.; FROLLINI, E. (Ed.). Natural polymers and compósites IV. [São Carlos: EMBRAPA: USP; S.l.: UNESP, 2002]. 4 f. 1 CD-ROM. |
Idioma: |
Inglês |
Conteúdo: |
Three different wet and cold-plasma treatments were used in order to create hydrophobic layers on beans surface. Hexamethyldisilazane (HDMS) was the precursor solution for based organosilicon composition film formation. Structures such as SiCH3 and Si2CH2 were identified as composing the surface after plasma treatments. Ultra-violet exposure promoted corsslinking in the polymeric film but no interference in hydrophobic properties was found. Combination of HDMS vapor plus 5 minutes plasma showed the best result in avoiding beans germination in wet environmental condition. |
Palavras-Chave: |
Coated beans; Cold plasma; Moisture barrier; Organosilicon layers. |
Categoria do assunto: |
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Marc: |
LEADER 01298naa a2200217 a 4500 001 1024755 005 2010-02-24 008 2002 bl --- 0-- u #d 100 1 $aCARVALHO, A. T. 245 $aEvaluation of organosilicon combined deposition for hydrophobic coatings of beans. 260 $c2002 520 $aThree different wet and cold-plasma treatments were used in order to create hydrophobic layers on beans surface. Hexamethyldisilazane (HDMS) was the precursor solution for based organosilicon composition film formation. Structures such as SiCH3 and Si2CH2 were identified as composing the surface after plasma treatments. Ultra-violet exposure promoted corsslinking in the polymeric film but no interference in hydrophobic properties was found. Combination of HDMS vapor plus 5 minutes plasma showed the best result in avoiding beans germination in wet environmental condition. 653 $aCoated beans 653 $aCold plasma 653 $aMoisture barrier 653 $aOrganosilicon layers 700 1 $aCARVALHO, A. M. 700 1 $aSILVA, M. L. P. 700 1 $aDEMARQUETTE, N. R. 700 1 $aASSIS, O. B. G. 773 $tIn: MATTOSO, L. H. C.; LEÃO, A.; FROLLINI, E. (Ed.). Natural polymers and compósites IV. [São Carlos: EMBRAPA: USP; S.l.: UNESP, 2002]. 4 f. 1 CD-ROM.
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Embrapa Instrumentação (CNPDIA) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
18/12/2017 |
Data da última atualização: |
18/12/2017 |
Autoria: |
SILVA JÚNIOR, E. G. da; SILVA, A. F. da; LIMA, J. de S.; SILVA, M. de F C. da; MAIA, J. M. |
Afiliação: |
Eugênio Gonçalves da Silva Júnior, Universidade Estadual da Paraíba - UEPB/Programa de Pós-Graduação em Ciências Agrárias; Anselmo Ferreira da Silva, Universidade Federal da Paraíba/Departamento de Fitotecnia e Ciências Ambientais; Jucelino de Sousa Lima, UEPB/Departamento de Agrárias e Exatas; Maria de Fátima Caetano da Silva, Universidade Estadual da Paraíba - UEPB/Programa de Pós-Graduação em Ciências Agrárias; Josemir Moura Maia, UEPB/Departamento de Agrárias e Exatas. |
Título: |
Vegetative development and content of calcium, potassium, and sodium in watermelon under salinity stress on organic substrates. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 12, p. 1149-1157, dez. 2017. |
Idioma: |
Inglês |
Notas: |
Título em português: Desenvolvimento vegetativo e conteúdo de cálcio, potássio e sódio em melancieira sob estresse salino, em substratos orgânicos. |
Conteúdo: |
The objective of this work was to evaluate the vegetative development and determine the concentration of sodium, potassium, and calcium in watermelon (Citrullus lanatus) grown on two organic substrates and under increasing saline concentrations. The substrates were soil + earthworm humus (S1) and soil + bovine manure (S2), and the saline treatments consisted of irrigation water with different electrical conductivities: 1.36 (control), 3.56, 5.76, and 7.96 dS m-1. The experimental design used was a randomized complete block in a 2×4 (substrate × conductivity) factorial arrangement with five replicates. Main branch length, root length, stem diameter, leaf number, leaf area, and fresh matter mass of shoots and roots, as well as the sodium, potassium, and calcium contents in the plants, were determined. All phenological parameters interacted with the substrates, and S1 improved plant performance. Substrates interacted significantly with: leaf area; leaf number; stem diameter; main branch length; root length; fresh matter mass of shoots and roots; and the contents of sodium, potassium, and calcium, in both shoots and roots of watermelon irrigated with saline water for up to 27 days after emergence. There are also interactions between substrates and salinity for stem diameter, main branch length, fresh matter mass of roots, and calcium contents in both shoots and roots, and potassium and sodium contents in the roots. |
Palavras-Chave: |
Bovine manure; Esterco bovino; Húmus de minhoca; Humus of earthworm. |
Thesagro: |
Citrullus Lanatus; Salinidade. |
Thesaurus NAL: |
Salt stress. |
Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/169144/1/Vegetative-development-and-content-of-calcium-potassium.pdf
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Marc: |
LEADER 02403naa a2200265 a 4500 001 2082729 005 2017-12-18 008 2017 bl uuuu u00u1 u #d 100 1 $aSILVA JÚNIOR, E. G. da 245 $aVegetative development and content of calcium, potassium, and sodium in watermelon under salinity stress on organic substrates. 260 $c2017 500 $aTítulo em português: Desenvolvimento vegetativo e conteúdo de cálcio, potássio e sódio em melancieira sob estresse salino, em substratos orgânicos. 520 $aThe objective of this work was to evaluate the vegetative development and determine the concentration of sodium, potassium, and calcium in watermelon (Citrullus lanatus) grown on two organic substrates and under increasing saline concentrations. The substrates were soil + earthworm humus (S1) and soil + bovine manure (S2), and the saline treatments consisted of irrigation water with different electrical conductivities: 1.36 (control), 3.56, 5.76, and 7.96 dS m-1. The experimental design used was a randomized complete block in a 2×4 (substrate × conductivity) factorial arrangement with five replicates. Main branch length, root length, stem diameter, leaf number, leaf area, and fresh matter mass of shoots and roots, as well as the sodium, potassium, and calcium contents in the plants, were determined. All phenological parameters interacted with the substrates, and S1 improved plant performance. Substrates interacted significantly with: leaf area; leaf number; stem diameter; main branch length; root length; fresh matter mass of shoots and roots; and the contents of sodium, potassium, and calcium, in both shoots and roots of watermelon irrigated with saline water for up to 27 days after emergence. There are also interactions between substrates and salinity for stem diameter, main branch length, fresh matter mass of roots, and calcium contents in both shoots and roots, and potassium and sodium contents in the roots. 650 $aSalt stress 650 $aCitrullus Lanatus 650 $aSalinidade 653 $aBovine manure 653 $aEsterco bovino 653 $aHúmus de minhoca 653 $aHumus of earthworm 700 1 $aSILVA, A. F. da 700 1 $aLIMA, J. de S. 700 1 $aSILVA, M. de F C. da 700 1 $aMAIA, J. M. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 52, n. 12, p. 1149-1157, dez. 2017.
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