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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
15/09/2009 |
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Data da última atualização: |
15/09/2009 |
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Autoria: |
NUNES, J. D.; TORRES, G. A.; DAVIDE, L. C.; CAMPOS, J. M. S. de. |
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Título: |
Chromosome banding and DNA content in tropical Pinus species. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Rodriguesia, Piracicaba, v. 37, n. 82, p. 213-218, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
The species Pinus tecunumanii Eguiluz & J. P. Perry has been the reason for a taxonomic controversy for
more than 50 years. Some authors considered Pinus tecunumanii as a subspecies of Pinus patula, whereas
others stated it is a distinct species closer to Pinus oocarpa. In the present work, the tropical species Pinus
oocarpa Schiede ex Schltdl., Pinus patula Schltdl. & Cham, and Pinus tecunumanii Eguiluz & J.P. Perry
were evaluated as to chromosome banding pattern using CMA3 fluorochrome, to identify chromosome polymorphisms,
and as to nuclear DNA content using flow cytometry, to contribute to the differentiation among
the three taxa. Analysis of variance and Tukey´s test were used to verify the existence of a significative
difference for nuclear DNA content. The obtained CMA3 banding pattern evidenced that secondary constrictions
are GC-rich regions and that Pinus tecunumanii is closer to Pinus oocarpa than to Pinus patula.
Content of nuclear DNA means were significantly different, with the major mean being observed in Pinus
patula (43.36 pg), and the minor one in Pinus tecunumanii, provenance Mountain Pine Ridge (40.48 pg).
The intraspecific DNA content variation observed among four different provenances of Pinus tecunumanii
was not correlated to their latitudinal origin. The DNA content variation did not allow distinction between
Pinus tecunumanii and the remaining two species. |
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Palavras-Chave: |
CMA banding; Nuclear DNA content. |
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Thesaurus Nal: |
Pinus tecunumanii. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 01938naa a2200193 a 4500
001 1427961
005 2009-09-15
008 2009 bl uuuu u00u1 u #d
100 1 $aNUNES, J. D.
245 $aChromosome banding and DNA content in tropical Pinus species.
260 $c2009
520 $aThe species Pinus tecunumanii Eguiluz & J. P. Perry has been the reason for a taxonomic controversy for more than 50 years. Some authors considered Pinus tecunumanii as a subspecies of Pinus patula, whereas others stated it is a distinct species closer to Pinus oocarpa. In the present work, the tropical species Pinus oocarpa Schiede ex Schltdl., Pinus patula Schltdl. & Cham, and Pinus tecunumanii Eguiluz & J.P. Perry were evaluated as to chromosome banding pattern using CMA3 fluorochrome, to identify chromosome polymorphisms, and as to nuclear DNA content using flow cytometry, to contribute to the differentiation among the three taxa. Analysis of variance and Tukey´s test were used to verify the existence of a significative difference for nuclear DNA content. The obtained CMA3 banding pattern evidenced that secondary constrictions are GC-rich regions and that Pinus tecunumanii is closer to Pinus oocarpa than to Pinus patula. Content of nuclear DNA means were significantly different, with the major mean being observed in Pinus patula (43.36 pg), and the minor one in Pinus tecunumanii, provenance Mountain Pine Ridge (40.48 pg). The intraspecific DNA content variation observed among four different provenances of Pinus tecunumanii was not correlated to their latitudinal origin. The DNA content variation did not allow distinction between Pinus tecunumanii and the remaining two species.
650 $aPinus tecunumanii
653 $aCMA banding
653 $aNuclear DNA content
700 1 $aTORRES, G. A.
700 1 $aDAVIDE, L. C.
700 1 $aCAMPOS, J. M. S. de
773 $tRodriguesia, Piracicaba$gv. 37, n. 82, p. 213-218, 2009.
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Registro original: |
Embrapa Florestas (CNPF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
21/02/2013 |
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Data da última atualização: |
25/02/2013 |
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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: |
CARMO, J. B.; FILOSO, S.; ZOTELLI, L. C.; SOUSA NETO, E. R.; PITOMBO, L.; DUARTE-NETO, P. J.; VARGAS, V. P; ANDRADE, C. A. de; GAVA, G. J. C.; ROSSETTO, R.; CANTARELLA, H.; ELIA NETO, A.; MARTINELLI, L. A. |
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Afiliação: |
JANAINA BRAGA DO CARMO, UFSCar; SOLANGE FILOSO, University of Maryland; LUCIANA C. ZOTELLI, IAC; ERACLITO R. DE SOUSA NETO, CENA-USP; LEONARDO M. PITOMBO, UFSCar; PAULO J. DUARTE-NETO, UFRPE; VITOR P. VARGAS, IAC; CRISTIANO ALBERTO DE ANDRADE, CNPMA; GLAUBER J. C. GAVA, APTA-Jaú; RAFFAELLA ROSSETTO, APTA-Piracicaba; HEITOR CANTARELLA, IAC; ANDRÉ ELIA NETO, Centro de Tecnologia Canavieira; LUIZ A. MARTINELLI, CENA-USP. |
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Título: |
Infield greenhouse gas emissions from sugarcane soils in Brazil: effects from synthetic and organic fertilizer application and crop trash accumulation. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Global Change Biology. Bioenergy, Oxford, 14 p., 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Bioethanol from sugarcane is becoming an increasingly important alternative energy source worldwide as it is considered to be both economically and environmentally sustainable. Besides being produced from a tropical perennial grass with high photosynthetic efficiency, sugarcane ethanol is commonly associated with low N fertilizer use because sugarcane from Brazil, the world?s largest sugarcane producer, has a low N demand. In recent years, several models have predicted that the use of sugarcane ethanol in replacement to fossil fuel could lead to high greenhouse gas (GHG) emission savings. However, empirical data that can be used to validate model predictions and estimates from indirect methodologies are scarce, especially with regard to emissions associated with different fertilization methods and agricultural management practices commonly used in sugarcane agriculture in Brazil. In this study, we provide in situ data on emissions of three GHG (CO2, N2O, and CH4) from sugarcane soils in Brazil and assess how they vary with fertilization methods and management practices. We measured emissions during the two main phases of the sugarcane crop cycle (plant and ratoon cane), which include different fertilization methods and field conditions. Our results show that N2O and CO2 emissions in plant cane varied significantly depending on the fertilization method and that waste products from ethanol production used as organic fertilizers with mineral fertilizer, as it is the common practice in Brazil, increase emission rates significantly. Cumulatively, the highest emissions were observed for ratoon cane treated with vinasse (liquid waste from ethanol production) especially as the amount of crop trash on the soil surface increased. Emissions of CO2 and N2O were 6.9 kg ha 1 yr 1 and 7.5 kg ha 1 yr 1, respectively, totaling about 3000 kg in CO2 equivalent ha 1 yr1. MenosBioethanol from sugarcane is becoming an increasingly important alternative energy source worldwide as it is considered to be both economically and environmentally sustainable. Besides being produced from a tropical perennial grass with high photosynthetic efficiency, sugarcane ethanol is commonly associated with low N fertilizer use because sugarcane from Brazil, the world?s largest sugarcane producer, has a low N demand. In recent years, several models have predicted that the use of sugarcane ethanol in replacement to fossil fuel could lead to high greenhouse gas (GHG) emission savings. However, empirical data that can be used to validate model predictions and estimates from indirect methodologies are scarce, especially with regard to emissions associated with different fertilization methods and agricultural management practices commonly used in sugarcane agriculture in Brazil. In this study, we provide in situ data on emissions of three GHG (CO2, N2O, and CH4) from sugarcane soils in Brazil and assess how they vary with fertilization methods and management practices. We measured emissions during the two main phases of the sugarcane crop cycle (plant and ratoon cane), which include different fertilization methods and field conditions. Our results show that N2O and CO2 emissions in plant cane varied significantly depending on the fertilization method and that waste products from ethanol production used as organic fertilizers with mineral fertilizer, as it is the common prac... Mostrar Tudo |
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Palavras-Chave: |
Filtercake. |
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Thesagro: |
Cana de açúcar; Dióxido de carbono; Efeito estufa. |
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Thesaurus NAL: |
Bioethanol; Carbon dioxide; Nitrogen fertilizers; Nitrous oxide; Sugarcane; Vinasse. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03008naa a2200385 a 4500
001 1950424
005 2013-02-25
008 2012 bl uuuu u00u1 u #d
100 1 $aCARMO, J. B.
245 $aInfield greenhouse gas emissions from sugarcane soils in Brazil$beffects from synthetic and organic fertilizer application and crop trash accumulation.$h[electronic resource]
260 $c2012
520 $aBioethanol from sugarcane is becoming an increasingly important alternative energy source worldwide as it is considered to be both economically and environmentally sustainable. Besides being produced from a tropical perennial grass with high photosynthetic efficiency, sugarcane ethanol is commonly associated with low N fertilizer use because sugarcane from Brazil, the world?s largest sugarcane producer, has a low N demand. In recent years, several models have predicted that the use of sugarcane ethanol in replacement to fossil fuel could lead to high greenhouse gas (GHG) emission savings. However, empirical data that can be used to validate model predictions and estimates from indirect methodologies are scarce, especially with regard to emissions associated with different fertilization methods and agricultural management practices commonly used in sugarcane agriculture in Brazil. In this study, we provide in situ data on emissions of three GHG (CO2, N2O, and CH4) from sugarcane soils in Brazil and assess how they vary with fertilization methods and management practices. We measured emissions during the two main phases of the sugarcane crop cycle (plant and ratoon cane), which include different fertilization methods and field conditions. Our results show that N2O and CO2 emissions in plant cane varied significantly depending on the fertilization method and that waste products from ethanol production used as organic fertilizers with mineral fertilizer, as it is the common practice in Brazil, increase emission rates significantly. Cumulatively, the highest emissions were observed for ratoon cane treated with vinasse (liquid waste from ethanol production) especially as the amount of crop trash on the soil surface increased. Emissions of CO2 and N2O were 6.9 kg ha 1 yr 1 and 7.5 kg ha 1 yr 1, respectively, totaling about 3000 kg in CO2 equivalent ha 1 yr1.
650 $aBioethanol
650 $aCarbon dioxide
650 $aNitrogen fertilizers
650 $aNitrous oxide
650 $aSugarcane
650 $aVinasse
650 $aCana de açúcar
650 $aDióxido de carbono
650 $aEfeito estufa
653 $aFiltercake
700 1 $aFILOSO, S.
700 1 $aZOTELLI, L. C.
700 1 $aSOUSA NETO, E. R.
700 1 $aPITOMBO, L.
700 1 $aDUARTE-NETO, P. J.
700 1 $aVARGAS, V. P
700 1 $aANDRADE, C. A. de
700 1 $aGAVA, G. J. C.
700 1 $aROSSETTO, R.
700 1 $aCANTARELLA, H.
700 1 $aELIA NETO, A.
700 1 $aMARTINELLI, L. A.
773 $tGlobal Change Biology. Bioenergy, Oxford, 14 p., 2012.
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