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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
23/10/1997 |
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Data da última atualização: |
13/07/2018 |
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Autoria: |
FERNANDES, F. T.; MAGNAVACA, R.; PINTO, N. F. J. de A. |
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Afiliação: |
EMBRAPA/CNPMS. |
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Título: |
Obtenção de híbridos duplos de milho resistentes a Phyllosticta sp. (Phaeosphaeria maydis). |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
In: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo: período 1992-1993. Sete Lagoas, 1994. v. 6, p. 189. |
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Idioma: |
Português |
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Palavras-Chave: |
Disease; Doencas; Maize; Resistance. |
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Thesagro: |
Milho; Phaeosphaeria Maydis; Resistência; Zea Mays. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/41658/1/Obtencao-hibridos.pdf
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Marc: |
LEADER 00795naa a2200229 a 4500
001 1477051
005 2018-07-13
008 1994 bl uuuu u00u1 u #d
100 1 $aFERNANDES, F. T.
245 $aObtenção de híbridos duplos de milho resistentes a Phyllosticta sp. (Phaeosphaeria maydis).$h[electronic resource]
260 $c1994
650 $aMilho
650 $aPhaeosphaeria Maydis
650 $aResistência
650 $aZea Mays
653 $aDisease
653 $aDoencas
653 $aMaize
653 $aResistance
700 1 $aMAGNAVACA, R.
700 1 $aPINTO, N. F. J. de A.
773 $tIn: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo: período 1992-1993. Sete Lagoas, 1994.$gv. 6, p. 189.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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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: |
09/01/2009 |
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Data da última atualização: |
25/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
HANSEL, F. A.; AOKI, C. T.; MAIA, C. M. B. F.; CUNHA JÚNIOR, A.; DEDECEK, R. A. |
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Afiliação: |
Fabrício Augusto Hansel, Embrapa Florestas; Cristiane Tabuti Aoki, UFPR; Claudia Maria Branco Freitas Maia, Embrapa Florestas; Anildo Cunha Júnior, Embrapa Suínos e Aves; Renato Antônio Dedecek, Embrapa Florestas. |
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Título: |
Comparison of two alkaline treatments in the extraction of organic compounds associated with water repellency in soil under Pinus taeda. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Geoderma, v. 148, p. 167-172, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Isopropanol: NH3 and Methanol: KOH (saponification) alkaline treatments are usually applied in the study of soil organic matter. The first is used in studies of soil water repellency, and the latter in the extraction of ester-bound lipids from soil. In this study, isopropanol:NH3 and methanol: KOH treatments were applied separately in a solvent extracted repellent soil, in order to compare their efficiency in the extraction of water repellent compounds. The soil sample was taken from a site under a 16 year old Pinus taeda stand. The amount and class of organic compounds released by each treatment were compared using gas chromatography-mass spectrometry (GC-MS). Both treatments resulted in wettable soil after alkaline extraction. In general, alkaline treatments yielded extracts with the same class of organic compounds. Alkanoic acids, ?,?-alkanedioic acids, hydroxyalkanoic acids, aromatic compounds, and alkanols were identified, indicating the preservation of suberin and cutin biopolyester in the soil. Large differences were observed in the amounts of ?-hydroxyalkanoic acids, as well as in the quantity and distribution of dihydroxyalkanoic and trihydroxyalkanoic acids. In contrast to methanol: KOH, isopropanol: NH3 was not efficient in the extraction of whole aliphatic biopolyesters, mainly pine cutin-related products. Methanol: KOH was more effective in hydrolysis. The presence of biopolyesters in water repellent soil under the P. taeda stand seems to play an important role in water repellency. MenosIsopropanol: NH3 and Methanol: KOH (saponification) alkaline treatments are usually applied in the study of soil organic matter. The first is used in studies of soil water repellency, and the latter in the extraction of ester-bound lipids from soil. In this study, isopropanol:NH3 and methanol: KOH treatments were applied separately in a solvent extracted repellent soil, in order to compare their efficiency in the extraction of water repellent compounds. The soil sample was taken from a site under a 16 year old Pinus taeda stand. The amount and class of organic compounds released by each treatment were compared using gas chromatography-mass spectrometry (GC-MS). Both treatments resulted in wettable soil after alkaline extraction. In general, alkaline treatments yielded extracts with the same class of organic compounds. Alkanoic acids, ?,?-alkanedioic acids, hydroxyalkanoic acids, aromatic compounds, and alkanols were identified, indicating the preservation of suberin and cutin biopolyester in the soil. Large differences were observed in the amounts of ?-hydroxyalkanoic acids, as well as in the quantity and distribution of dihydroxyalkanoic and trihydroxyalkanoic acids. In contrast to methanol: KOH, isopropanol: NH3 was not efficient in the extraction of whole aliphatic biopolyesters, mainly pine cutin-related products. Methanol: KOH was more effective in hydrolysis. The presence of biopolyesters in water repellent soil under the P. taeda stand seems to play an important role ... Mostrar Tudo |
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Palavras-Chave: |
Repelência; Tratamento alcalino. |
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Thesagro: |
Água; Composto Orgânico; Extração; Pinus Taeda; Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02261naa a2200253 a 4500
001 1315268
005 2015-02-25
008 2008 bl uuuu u00u1 u #d
100 1 $aHANSEL, F. A.
245 $aComparison of two alkaline treatments in the extraction of organic compounds associated with water repellency in soil under Pinus taeda.$h[electronic resource]
260 $c2008
520 $aIsopropanol: NH3 and Methanol: KOH (saponification) alkaline treatments are usually applied in the study of soil organic matter. The first is used in studies of soil water repellency, and the latter in the extraction of ester-bound lipids from soil. In this study, isopropanol:NH3 and methanol: KOH treatments were applied separately in a solvent extracted repellent soil, in order to compare their efficiency in the extraction of water repellent compounds. The soil sample was taken from a site under a 16 year old Pinus taeda stand. The amount and class of organic compounds released by each treatment were compared using gas chromatography-mass spectrometry (GC-MS). Both treatments resulted in wettable soil after alkaline extraction. In general, alkaline treatments yielded extracts with the same class of organic compounds. Alkanoic acids, ?,?-alkanedioic acids, hydroxyalkanoic acids, aromatic compounds, and alkanols were identified, indicating the preservation of suberin and cutin biopolyester in the soil. Large differences were observed in the amounts of ?-hydroxyalkanoic acids, as well as in the quantity and distribution of dihydroxyalkanoic and trihydroxyalkanoic acids. In contrast to methanol: KOH, isopropanol: NH3 was not efficient in the extraction of whole aliphatic biopolyesters, mainly pine cutin-related products. Methanol: KOH was more effective in hydrolysis. The presence of biopolyesters in water repellent soil under the P. taeda stand seems to play an important role in water repellency.
650 $aÁgua
650 $aComposto Orgânico
650 $aExtração
650 $aPinus Taeda
650 $aSolo
653 $aRepelência
653 $aTratamento alcalino
700 1 $aAOKI, C. T.
700 1 $aMAIA, C. M. B. F.
700 1 $aCUNHA JÚNIOR, A.
700 1 $aDEDECEK, R. A.
773 $tGeoderma$gv. 148, p. 167-172, 2008.
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