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| Registros recuperados: 69 | |
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| COSTA,José Nilton Medeiros; SILVA,Rachel Barbosa da; RIBEIRO,Paulina de Araújo; GARCIA,Alvanir. |
| Em trabalho efetuado visando o levantamento de inimigos naturais da broca-do-café (Hypothenemus hampei, Ferrari) no estado de Rondônia, verificou-se a ocorrência do fungo Beauveria bassiana (Bals.) Vuill. conforme identificação da Embrapa Rondônia. Os frutos de café foram coletados em cafezais da cultivar Conilon (Coffea canephora), nos municípios de Rolim de Moura, Ouro Preto do Oeste e Machadinho do Oeste, Rondônia, nos meses de fevereiro a março de 2000. A percentagem média de infecção de B. bassiana em frutos broqueados variou de 0,23% a 0,47%, sendo menor que em outras regiões do Brasil. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beauveria bassiana; Hypothenemus hampei; Coffea; Sp; Broca-do-café; Café. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672002000300517 |
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| Shigueoka,Luciana Harumi; Sera,Gustavo Hiroshi; Sera,Tumoru; Fonseca,Inês Cristina de Batista; Andreazi,Elder; Carvalho,Filipe Gimenez; Carducci,Fernando Cesar; Ito,Dhalton Shiguer. |
| ABSTRACT The aim of this study was to evaluate the reaction of Arabica coffee progenies derived from Icatu to Meloidogyne paranaensis. The experiment was conducted under screenhouse conditions at Instituto Agronômico do Paraná (IAPAR) in Londrina, Paraná State, Brazil. Seedlings with three to four pairs of leaves were inoculated with 5,000 M. paranaensis eggs and second-stage juveniles (J2). Four F4 progenies of HN 87609 derived from Icatu H4782-7-925 were evaluated. C. arabica cv. Catuaí Vermelho IAC 81 and C. arabica cv. IPR 100 were susceptible and resistant checks, respectively. The experiment was conducted in a randomized blocks design with 14 replications of one plant per plot. Assessments were performed 120 days after inoculation. The number of eggs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Breeding; Root-knot nematode; Resistance. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200193 |
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| Queiroz-Voltan,Rachel Benetti; Cabral,Luciane Perosin; Fazuoli,Luiz Carlos; Paradela Filho,Osvaldo. |
| A bactéria Xylella fastidiosa Wells et al. foi detectada pela primeira vez em cafeeiro no Brasil, em 1995, entretanto acredita-se que a cultura foi infectada por essa bactéria há muitos anos, embora os sintomas fossem atribuídos a um estresse nutricional. Até o momento têm sido realizados estudos principalmente com espécies de C. arabica e C. canephora, porém, em outras espécies do gênero, somente foi detectada sua presença. Neste trabalho, objetivou-se avaliar a proporção de elementos de vaso do xilema obstruídos, total e parcialmente, pela X. fastidiosa, naturalmente infectadas, em diferentes espécies de cafeeiro do Banco de Germoplasma do IAC, visando identificar material resistente a essa bactéria para ser utilizado no programa de melhoramento... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Obstrução do xilema; Bactéria. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000400011 |
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| Medina Filho,Herculano Penna; Carvalho,Alcides; Ballve,Rosa Maria Lizana; Bordignon,Rita; Silvarolla,Maria Bernadete; Lima,Marinez Muraro Alves de; Fazuoli,Luiz Carlos. |
| Encontrou-se, anos atrás, em uma lavoura de Coffea arabica (2n = 44), uma forma de café bastante distinta das demais. Inicialmente, julgou-se tratar de um cafeeiro autotetraplóide de C. liberica (2n = 22) ou de C. dewevrei (2n = 22). Estudos morfológicos e citológicos de tal cafeeiro, denominado Piatã (prefixo C387 da Seção de Genética do IAC), assim como de seus descendentes, indicaram tratar-se, provavelmente, de um híbrido natural derivado da união de um gameta normal de C. arabica e de um não reduzido de C. dewevrei. No presente trabalho, os estudos dos padrões eletroforéticos das enzimas PGI, PGM e ADH do endosperma de sementes confirmaram a origem interespecífica do café Piatã. A combinação de alelos dessas enzimas é distinta e específica para C.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; C. dewevrei; C. arabica; Isoenzimas; Híbrido interespecífico. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051995000200005 |
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| MAZZAFERA,PAULO; SOAVE,DAYSE; ZULLO,MARCO ANTONIO TEIXEIRA; GUERREIRO FILHO,OLIVEIRO. |
| The oil content was determined in seeds of several continental African species of the coffee germplasm bank of Instituto Agronômico de Campinas, State of São Paulo, Brazil. Oil was extracted from seeds with hexane in Soxhlet apparatus. Due to the economic importance, C. arabica and C. canephora have been the best studied species concerning oil content and composition, and the results obtained are in agreement with the reported in the literature. On the other hand, only one report in the literature describes the results of oil analyses in other few species of the African continent, although it does not allow comparison with our results. The oil content of most of the species varied from 9 to 15%, therefore, similar to the range observed for C. arabica and... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: African coffee species; Coffea; Oil content. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051998000100006 |
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| RAMOS,LUIS CARLOS DA SILVA; CARVALHO,ALCIDES. |
| Roots and shoots from seedlings of 29 coffee genotypes were studied to better characterize the entries from the Coffea germplasm bank of the Instituto Agronômico (IAC), Campinas, State of São Paulo, Brasil. The varieties were seeded in a randomized complete block design with 6 replications and 10 plants per plot. The characters evaluated were: plant (PL), shoot (SL) and root (RL) length; total plant (PDM), shoot (SDM), root (RDM) and lateral root (LRDM) dry matter. A lateral root index (LRI) and shoot root dry matter (SRDM = SDM/RDM) and length ratios; (SRL = SL/RL) were calculated. The dwarf varieties (Catuaí, Icatu-caturra, Vila Sarchi, San Ramon, Vila Lobos, São Bernardo) presented higher LRDM and lower SDM than the normal size varieties such as Mundo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Coffee; Varieties; Seedlings; Shoots; Roots; Coffea. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051997000100006 |
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| Sera,Gustavo Hiroshi; Sera,Tumoru; Ito,Dhalton Shiguer; Ribeiro Filho,Claudionor; Villacorta,Amador; Kanayama,Fabio Seidi; Alegre,Clayton Ribeiro; Del Grossi,Leandro. |
| The aim of this study was to evaluate the coffee germplasm of the Paraná Agronomic Institute (IAPAR) for resistance to the coffee-berry-borer. Preliminary field evaluation was performed in August 2004 and the fruits of less damaged genotypes in the field were evaluated under controlled condition with obligated and free choice experiments established in a randomized complete design with three replications. The genotypes were evaluated fifteen days after infestation with one borer per fruit in Petri dishes. The data were analyzed by the Scott-Knott means test at 1 % and by the χ2 test. Statistical analysis indicated that Coffea kapakata, Psilanthus bengalensis, C. eugenioides and genotypes with C. eugenioides genes were resistant. These genotypes presented... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeding; Coffea; Cultivars; Hypothenemus hampei; Psilanthus. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200003 |
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| Crochemore,Maria Lúcia; Nunes,Liliane Moreira; Andrade,Giselly Aparecida; Molinari,Hugo Bruno Correa; Vasconcellos,Maria Elizabeth. |
| This study aimed the identification of cultivars and/or lines of Coffea arabica of commercial interest, using PCR-RAPD markers. The DNA of ground seeds lots of 12 cultivars and/or lines were evaluated with five primers (Operon OPA 01, OPA 04, OPG 11, OPY 16, and OPX 09) were obtained from a selection of 56 primers. The electrophoretic profiles allowed distinction among eight cultivars and/or lines as well as heterogeneity between and within lots of IAPAR59. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Cultivar identification; Molecular marker. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100002 |
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| Del Grossi,Leandro; Sera,Tumoru; Sera,Gustavo Hiroshi; Fonseca,Inês Cristina de Batista; Ito,Dhalton Shiguer; Shigueoka,Luciana Harumi; Andreazi,Elder; Carvalho,Filipe Gimenez. |
| The objective of the study was to evaluate the resistance to rust in coffee cultivars developed by research institutes of Brazil in Paraná state. Resistance to the local leaf rust races was assessed in high disease intensity field conditions at Londrina and Congonhinhas in 2009 and 2010.The cultivars were developed by the EPAMIG/UFV, IAPAR, IAC and MAPA/Procafé. The resistant standard 'IAPAR 59' and the susceptible standards Catuaí Vermelho IAC 144' and 'Bourbon Amarelo' were used. A randomized block design with three replications and plots with 10 plants was used. A scale from 1 to 5 based on the rust intensity was used to evaluate the resistance. The Catiguá MG 1, Catiguá MG 2, IAPAR 59, IPR 98, IPR 104, Palma II, Paraíso H-419-10-6-2-5-1, Paraíso... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeding; Coffea; Hemileia vastatrix; Híbrido de Timor; SH genes. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000100004 |
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| Ribas,Alessandra Ferreira; Pereira,Luiz Filipe Protasio; Vieira,Luiz Gonzaga E.. |
| In the last 15 years, considerable advances were made in coffee genetic transformation. Different research groups in the world have been able to transform coffee with genes for insect resistance, decaffeinated coffee, herbicide resistance and control of fruit maturation. Although the majority of the research is still limited to laboratory and greenhouse studies, initial field tests with transformed coffee are beginning to appear in the literature. In this review we provide an update on the state of coffee genetic transformation, presenting technical aspects related to tissue culture systems, strategies for selection and transformation with particle bombardment, as well as the use of Agrobacterium tumefaciens. We also discuss the potential applications of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agrobacterium; Coffea; Biolistic; Genetic engineering; Transgenic. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100007 |
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| Vieira,Luiz Gonzaga Esteves; Andrade,Alan Carvalho; Colombo,Carlos Augusto; Moraes,Ana Heloneida de Araújo; Metha,Ângela; Oliveira,Angélica Carvalho de; Labate,Carlos Alberto; Marino,Celso Luis; Monteiro-Vitorello,Claúdia de Barros; Monte,Damares de Castro; Giglioti,Éder; Kimura,Edna Teruko; Romano,Eduardo; Kuramae,Eiko Eurya; Lemos,Eliana Gertrudes Macedo; Almeida,Elionor Rita Pereira de; Jorge,Érika C.; Albuquerque,Érika V. S.; Silva,Felipe Rodrigues da; Vinecky,Felipe; Sawazaki,Haiko Enok; Dorry,Hamza Fahmi A.; Carrer,Helaine; Abreu,Ilka Nacif; Batista,João A. N.; Teixeira,João Batista; Kitajima,João Paulo; Xavier,Karem Guimarães; Lima,Liziane Maria de; Camargo,Luis Eduardo Aranha de; Pereira,Luiz Filipe Protasio; Coutinho,Luiz Lehmann; Lemos,Manoel Victor Franco; Romano,Marcelo Ribeiro; Machado,Marcos Antonio; Costa,Marcos Mota do Carmo; Sá,Maria Fátima Grossi de; Goldman,Maria Helena S.; Ferro,Maria Inês T.; Tinoco,Maria Laine Penha; Oliveira,Mariana C.; Van Sluys,Marie-Anne; Shimizu,Milton Massao; Maluf,Mirian Perez; Eira,Mirian Therezinha Souza da; Guerreiro Filho,Oliveiro; Arruda,Paulo; Mazzafera,Paulo; Mariani,Pilar Drummond Sampaio Correa; Oliveira,Regina L.B.C. de; Harakava,Ricardo; Balbao,Silvia Filippi; Tsai,Siu Mui; Mauro,Sonia Marli Zingaretti di; Santos,Suzana Neiva; Siqueira,Walter José; Costa,Gustavo Gilson Lacerda; Formighieri,Eduardo Fernandes; Carazzolle,Marcelo Falsarella; Pereira,Gonçalo Amarante Guimarães. |
| Coffee is one of the most valuable agricultural commodities and ranks second on international trade exchanges. The genus Coffea belongs to the Rubiaceae family which includes other important plants. The genus contains about 100 species but commercial production is based only on two species, Coffea arabica and Coffea canephora that represent about 70 % and 30 % of the total coffee market, respectively. The Brazilian Coffee Genome Project was designed with the objective of making modern genomics resources available to the coffee scientific community, working on different aspects of the coffee production chain. We have single-pass sequenced a total of 214,964 randomly picked clones from 37 cDNA libraries of C. arabica, C. canephora and C. racemosa,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; CDNA; EST; Transcriptome. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100008 |
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| Speer,Karl; Kölling-Speer,Isabelle. |
| The lipid fraction of coffee is composed mainly of triacylglycerols, sterols and tocopherols, the typical components found in all common edible vegetable oils. Additionally, the so-called coffee oil contains diterpenes of the kaurene family in proportions of up to 20 % of the total lipids. Diterpenes are of interest because of their analytical and physiological effects. The composition of the main lipid components of the two most important coffee species, Coffea arabica and Coffea canphora var. Robusta is presented. In addition, the influences of typical processes like roasting and steaming on selected lipid components as well as the effects of the storage of green coffee beans under different conditions will be described. Furthermore, new findings... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Coffee oil; Coffee wax; Diterpenes; 5-hydroxytryptamides. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100014 |
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| Eira,Mirian T. S.; Silva,E. A. Amaral da; De Castro,Renato D.; Dussert,Stéphane; Walters,Christina; Bewley,J. Derek; Hilhorst,Henk W. M.. |
| Considerable advances in our understanding of coffee seed physiology have been made in recent years. However, despite intense research efforts, there are many aspects that remain unclear. This paper gives an overview of the current understanding of the more important features concerning coffee seed physiology, and provides information on recent findings on seed development, germination, storage and longevity. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Coffee; Germination; Germplasm; Longevity; Seed development; Storage. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100011 |
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| Registros recuperados: 69 | |
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