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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/09/2016 |
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Data da última atualização: |
27/10/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ARAÚJO, L. G.; FIGUEIREDO, C. C.; SOUSA, D. M. G. de. |
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Afiliação: |
UnB; UnB; DJALMA MARTINHAO GOMES DE SOUSA, CPAC. |
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Título: |
Gypsum application increases the carbon stock in soil under sugar cane in the Cerrado region of Brazil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Soil Research, v. 55, n. 1, p. 38-46, 2017. |
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DOI: |
http://dx.doi.org/10.1071/SRI5219 |
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Idioma: |
Português |
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Conteúdo: |
Abstract: Gypsum is widely used in agriculture in the Cerrado region of Brazil to increase root volume and distribution in the profile of predominantly acidic soils with high aluminium toxicity. The gypsum-induced increase in the root system may be an effective strategy to increase sequestration of atmospheric CO2. However, few studies have investigated the relationship between the use of gypsum and carbon accumulation in the soil under sugar cane. In the present study, total carbon stock (TC) in the soil and its fractions were estimated after four growing seasons of sugar cane under gypsum application. The experiment was arranged in a randomised block design with four replicates and two treatments: control (0 Mg ha(-1)) and the technically recommended rate of gypsum application (5 Mg ha(-1)). Sugarcane stalk biomass and straw production were evaluated in plant cane and three ratoon crops. Soil samples were taken after evaluation of the third ratoon from seven layers (0-5, 5-10, 10-20, 20-40, 40-60, 60-80 and 80-100 cm) to determine organic carbon, TC, particulate carbon (PC) and bulk density. Gypsum increased TC by 5.4 and 4.4 Mg ha(-1) in the 0-100 and 40-100 cm layers respectively. The PC pool in the 40-100 cm layer was increased by 18.4%, whereas the carbon stock associated with mineral increased by 6.8% with gypsum application. Of the total increase in C stocks resulting from gypsum application, 80% occurred in the 40-100 cm layer. |
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Palavras-Chave: |
Reservatório de carbono. |
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Thesagro: |
Biomassa; Carbono; Colheita; Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02091naa a2200217 a 4500
001 2053662
005 2017-10-27
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1071/SRI5219$2DOI
100 1 $aARAÚJO, L. G.
245 $aGypsum application increases the carbon stock in soil under sugar cane in the Cerrado region of Brazil.
260 $c2017
520 $aAbstract: Gypsum is widely used in agriculture in the Cerrado region of Brazil to increase root volume and distribution in the profile of predominantly acidic soils with high aluminium toxicity. The gypsum-induced increase in the root system may be an effective strategy to increase sequestration of atmospheric CO2. However, few studies have investigated the relationship between the use of gypsum and carbon accumulation in the soil under sugar cane. In the present study, total carbon stock (TC) in the soil and its fractions were estimated after four growing seasons of sugar cane under gypsum application. The experiment was arranged in a randomised block design with four replicates and two treatments: control (0 Mg ha(-1)) and the technically recommended rate of gypsum application (5 Mg ha(-1)). Sugarcane stalk biomass and straw production were evaluated in plant cane and three ratoon crops. Soil samples were taken after evaluation of the third ratoon from seven layers (0-5, 5-10, 10-20, 20-40, 40-60, 60-80 and 80-100 cm) to determine organic carbon, TC, particulate carbon (PC) and bulk density. Gypsum increased TC by 5.4 and 4.4 Mg ha(-1) in the 0-100 and 40-100 cm layers respectively. The PC pool in the 40-100 cm layer was increased by 18.4%, whereas the carbon stock associated with mineral increased by 6.8% with gypsum application. Of the total increase in C stocks resulting from gypsum application, 80% occurred in the 40-100 cm layer.
650 $aBiomassa
650 $aCarbono
650 $aColheita
650 $aSolo
653 $aReservatório de carbono
700 1 $aFIGUEIREDO, C. C.
700 1 $aSOUSA, D. M. G. de
773 $tSoil Research$gv. 55, n. 1, p. 38-46, 2017.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão; Embrapa Alimentos e Territórios; Embrapa Mandioca e Fruticultura; Embrapa Solos / UEP-Recife; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
16/11/2023 |
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Data da última atualização: |
16/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
RIBEIRO, T. F. L.; OLIVEIRA, D. J. DE A.; COSTA, J. G. da; MARTINEZ GUTIERREZ, M. A.; OLIVEIRA, E. J. de; RIBEIRO JUNIOR, K. A. L.; GOULART, H. F.; RIFFEL, A.; SANTANA, A. E. G. |
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Afiliação: |
THYAGO FERNANDO LISBOA RIBEIRO, Federal University of Alagoas; DEMETRIOS JOSÉ DE ALBUQUERQUE OLIVEIRA, Federal University of Alagoas; JOAO GOMES DA COSTA, CNAT; MIGUEL ANGEL MARTINEZ GUTIERREZ, Federal University of Alagoas; EDER JORGE DE OLIVEIRA, CNPMF; KARLOS ANTONIO LISBOA RIBEIRO JUNIOR, Federal University of Alagoas; HENRIQUE FONSECA GOULART, Federal University of Alagoas; ALESSANDRO RIFFEL, CPATC; ANTONIO EUZEBIO GOULART SANTANA, Federal University of Alagoas. |
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Título: |
Volatile organic compounds from cassava plants confer resistance to the Whitefly Aleurothrixus aepim (Goeldi, 1886). |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Insects, v. 14, n. 762, 2023. |
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Páginas: |
14 p. |
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DOI: |
10.3390/insects14090762 |
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Idioma: |
Inglês |
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Conteúdo: |
Cassava is an essential tuber crop used to produce food, feed, and beverages. Whitefly pests, including Aleurothrixus aepim (Goeldi, 1886) (Hemiptera: Aleyrodidae), significantly affect cassava-based agroecosystems. Plant odours have been described as potential pest management tools, and the cassava clone M Ecuador 72 has been used by breeders as an essential source of resistance. In this study, we analysed and compared the volatile compounds released by this resistant clone and a susceptible genotype, BRS Jari. Constitutive odours were collected from young plants and analysed using gas chromatography?mass spectrometry combined with chemometric tools. The resistant genotype released numerous compounds with previously described biological activity and substantial amounts of the monoterpene (E)-β-ocimene. Whiteflies showed non-preferential behaviour when exposed to volatiles from the resistant genotype but not the susceptible genotype. Furthermore, pure ocimene caused non-preferential behaviour in whiteflies, indicating a role for this compound in repellence. This report provides an example of the intraspecific variation in odour emissions from cassava plants alongside information on odorants that repel whiteflies; these data can be used to devise whitefly management strategies. A better understanding of the genetic variability in cassava odour constituents and emissions under field conditions may accelerate the development of more resistant cassava varieties. |
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Palavras-Chave: |
Manihot esculenta Crantz; Repellence activity; Terpenes. |
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Thesagro: |
Euphorbiaceae. |
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Thesaurus NAL: |
Semiochemicals. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158413/1/VolatileOrganicCompounds.pdf
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Marc: |
LEADER 02393naa a2200301 a 4500
001 2158413
005 2023-11-16
008 2023 bl uuuu u00u1 u #d
024 7 $a10.3390/insects14090762$2DOI
100 1 $aRIBEIRO, T. F. L.
245 $aVolatile organic compounds from cassava plants confer resistance to the Whitefly Aleurothrixus aepim (Goeldi, 1886).$h[electronic resource]
260 $c2023
300 $a14 p.
520 $aCassava is an essential tuber crop used to produce food, feed, and beverages. Whitefly pests, including Aleurothrixus aepim (Goeldi, 1886) (Hemiptera: Aleyrodidae), significantly affect cassava-based agroecosystems. Plant odours have been described as potential pest management tools, and the cassava clone M Ecuador 72 has been used by breeders as an essential source of resistance. In this study, we analysed and compared the volatile compounds released by this resistant clone and a susceptible genotype, BRS Jari. Constitutive odours were collected from young plants and analysed using gas chromatography?mass spectrometry combined with chemometric tools. The resistant genotype released numerous compounds with previously described biological activity and substantial amounts of the monoterpene (E)-β-ocimene. Whiteflies showed non-preferential behaviour when exposed to volatiles from the resistant genotype but not the susceptible genotype. Furthermore, pure ocimene caused non-preferential behaviour in whiteflies, indicating a role for this compound in repellence. This report provides an example of the intraspecific variation in odour emissions from cassava plants alongside information on odorants that repel whiteflies; these data can be used to devise whitefly management strategies. A better understanding of the genetic variability in cassava odour constituents and emissions under field conditions may accelerate the development of more resistant cassava varieties.
650 $aSemiochemicals
650 $aEuphorbiaceae
653 $aManihot esculenta Crantz
653 $aRepellence activity
653 $aTerpenes
700 1 $aOLIVEIRA, D. J. DE A.
700 1 $aCOSTA, J. G. da
700 1 $aMARTINEZ GUTIERREZ, M. A.
700 1 $aOLIVEIRA, E. J. de
700 1 $aRIBEIRO JUNIOR, K. A. L.
700 1 $aGOULART, H. F.
700 1 $aRIFFEL, A.
700 1 $aSANTANA, A. E. G.
773 $tInsects$gv. 14, n. 762, 2023.
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Embrapa Alimentos e Territórios (CNAT) |
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